Allocation of Spectrum for Non-Federal Space Launch Operations

Published date10 June 2021
Citation86 FR 30860
Record Number2021-11063
SectionProposed rules
CourtFederal Communications Commission
Federal Register, Volume 86 Issue 110 (Thursday, June 10, 2021)
[Federal Register Volume 86, Number 110 (Thursday, June 10, 2021)]
                [Proposed Rules]
                [Pages 30860-30887]
                From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
                [FR Doc No: 2021-11063]
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                FEDERAL COMMUNICATIONS COMMISSION
                47 CFR Parts 2, 87, and 90
                [ET Docket No. 13-115; RM 11341; FCC 21-44; FR ID 27947]
                Allocation of Spectrum for Non-Federal Space Launch Operations
                AGENCY: Federal Communications Commission.
                ACTION: Proposed rule.
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                SUMMARY: In this document, the Federal Communications Commission
                (Commission) takes steps towards establishing a spectrum allocation and
                licensing framework that will provide regulatory certainty and improved
                efficiency and that will promote innovation and investment in the
                United States commercial space launch industry. In the Further Notice
                of Proposed Rulemaking, the Commission seeks comment on the definition
                of space launch operations, the potential allocation of spectrum for
                the commercial space launch industry, including the 420-430 MHz, 2025-
                2110 MHz, and 5650-5925 MHz bands. In addition, the Commission seeks
                comment on establishing service rules, including licensing and
                technical rules and coordination procedures, for the use of spectrum
                for commercial space launch operations. Finally, the Commission seeks
                to refresh the record on potential ways to facilitate Federal use of
                commercial satellite services in what are currently non-Federal
                satellite bands and enable more robust federal use of the 399.9-400.05
                MHz band.
                DATES: Comments are due on or before July 12, 2021; reply comments are
                due on or before August 9, 2021.
                ADDRESSES: You may submit comments, identified by ET Docket No. 13-115,
                by any of the following methods:
                 Federal Communications Commission's Website: http://apps.fcc.gov/ecfs/. Follow the instructions for submitting comments.
                 People with Disabilities: Contact the FCC to request
                reasonable accommodations (accessible format documents, sign language
                interpreters, CART, etc.) by email: [email protected] or phone: 202-418-
                0530 or TTY: 202-418-0432.
                 For detailed instructions for submitting comments and additional
                information on the rulemaking process, see the SUPPLEMENTARY
                INFORMATION section of this document.
                FOR FURTHER INFORMATION CONTACT: Nicholas Oros, Office of Engineering
                and Technology, at (202) 418-0636 or [email protected]; Peter
                Trachtenberg, Wireless Telecommunications Bureau, at
                [email protected] or 202-418-7369; or Kimberly Baum,
                International Bureau, at [email protected] or 202-418-2752. For
                information regarding the PRA information collection requirements
                contained in this PRA, contact Cathy Williams, Office of Managing
                Director, at (202) 418-2918 or [email protected].
                SUPPLEMENTARY INFORMATION: This is a summary of the Commission's Report
                and Order and Further Notice of Proposed Rulemaking (FNPRM), ET Docket
                No. 13-115, FCC 21-44, adopted and released on April 22, 2020. This
                document is available by downloading the text from the Commission's
                website at https://www.fcc.gov/document/fcc-seeks-make-spectrum-available-commercial-space-launches-0. When the FCC Headquarters
                reopens to the public, the full text of this document also will be
                available for public inspection and copying during regular business
                hours in the FCC Reference Center, 45 L Street NE, Washington, DC
                20554. Alternative formats are available for people with disabilities
                (braille, large print, electronic files, audio format) by sending an
                email to [email protected] or calling the Commission's Consumer and
                Governmental Affairs Bureau at (202) 418-0530 (voice), (202) 418-0432
                (TTY).
                [[Page 30861]]
                Synopsis
                 1. In this FNPRM, the Commission continue its efforts to support
                commercial space launch operations and federal use of commercial space
                services. Specifically, the Commission proposes to add a non-Federal
                allocation in the 2025-2110 MHz band to support such operations, and
                the Commission seeks further comment on adding non-Federal allocations
                for commercial space launch operations in the 420-430 MHz, 2200-2290
                MHz, and 5650-5925 MHz bands. The Commission further proposes to adopt
                a licensing framework and a set of technical rules to govern space
                launch operations services in the 2200-2290 MHz band, as well as the
                other three bands if they are ultimately allocated for commercial space
                launch purposes. In addition, the Commission seeks comment on whether
                to amend any of the rules applicable to space launch operations in the
                2360-2395 MHz bands. The Commission seeks comment on various licensing
                frameworks to authorize a variety of telemetry, tracking, and command
                operations between launch vehicles and ground stations during the
                initial launch and reentry phases of space launch operations. The
                Commission also seeks comment on whether there are additional measures
                that should be considered in order to facilitate radio-frequency
                licensing of certain other types of space launch operations that may be
                currently addressed through experimental licensing, including
                communications between launch vehicles and satellites and
                communications in connection with certain payload activities. Finally,
                the Commission seeks to refresh the record on the matter of expanding
                Federal use of certain non-Federal FSS and MSS bands, including
                removing the footnote restriction on federal earth stations accessing
                federal space stations operating in the 399.9-400.05 MHz band.
                 2. In a 2013 Notice of Proposed Rulemaking and Notice of Inquiry
                (NPRM), the Commission proposed to provide a primary allocation of
                spectrum in three bands for non-Federal use during space launches: 420-
                430 MHz, 2200-2290 MHz, and 5650-5925 MHz. The NPRM also proposed to
                add either a Federal Fixed Satellite Service (FSS) or Mobile Satellite
                Service (MSS) allocation or a footnote to allow Federal access to
                several frequency bands for satellite services that currently only
                support commercial satellite systems. The NPRM also addressed a 2012
                NTIA request to change a footnote in the U.S. Table to enable Federal
                space stations to operate in the 399.9-400.05 MHz MSS band.
                 3. 420-430 MHz Band. The 420-430 MHz band is used during launches
                from Federal launch sites to transmit a flight termination signal to a
                launch vehicle, if necessary. This signal will cause the launch vehicle
                to self-destruct if it goes off course and poses a danger to a
                populated area. The NPRM sought comment on whether the Commission
                should make a co-primary non-Federal Aeronautical Mobile allocation for
                the 420-430 MHz band and whether it should add a footnote to the U.S.
                Table restricting use of the allocation to self-destruct signals (i.e.,
                flight termination signals) during launches. The Commission has not
                received any STA requests for this band during space launches. This
                band is heavily used by Federal users, including the Department of
                Defense (DoD), for radiolocation applications.
                 4. The Commercial Spaceflight Federation notes that there has not
                been a need for this band by commercial companies because launches have
                occurred at government facilities which transmit the flight termination
                signals. However, the Commercial Spaceflight Federation claims that, as
                launches increasingly occur at private spaceports, operators will need
                licenses for this band. The New Mexico Spaceport Authority agrees that
                commercial operators will want to operate their own flight safety
                systems. SpaceX may need access to the band in the future. Orbital ATK
                endorses adding a co-primary non-Federal allocation for 421 MHz rather
                than adding the allocation for the entire band. Blue Origin takes no
                position on use of this band and indicates that it does not use this
                band during launches.
                 5. The Commission seeks further comment on whether to adopt a
                footnote to the U.S. Table which adds a primary non-Federal
                Aeronautical Mobile allocation to the 420-430 MHz band, requires
                coordination of assignments with NTIA, and restricts use of the band to
                pre-launch testing of launch vehicles and sending flight termination
                signals to launch vehicles during launches. Because launches to date
                have occurred at Federal ranges, access to this band by commercial
                launch providers has not been necessary. The Commission expects this
                may change as companies transition towards using commercial launch
                sites in the future. Thus, adding this Aeronautical Mobile allocation
                may be critical for protecting the public during space launches.
                Because the intended use of this band is for safety-of-life
                applications, the Commission proposes to add the Aeronautical Mobile
                allocation on a primary basis so that its use will be on an
                interference-protected basis. Further, the Commission proposes to add
                this Aeronautical Mobile allocation for the entire 420-430 MHz band,
                rather than limit it to just 421 MHz as suggested by Orbital ATK,
                because the Commission cannot predict what frequencies will be
                available at the future at launch sites. As NTIA permits range safety
                operations (i.e., flight termination systems) across 420-450 MHz,
                should the Commission expand the Aeronautical Mobile allocation to 420-
                450 MHz? Regardless of the frequency range of the allocation, use of
                the band would need to be coordinated with NTIA. In this FNPRM, the
                Commission also proposes licensing and service rules for use of this
                band, should the Commission adopt this proposed allocation.
                 6. While the U.S. Table does not have a Mobile allocation in the
                420-430 MHz band, the International Table has a Mobile, except
                aeronautical mobile allocation, for all regions. Therefore,
                aeronautical mobile use of the 420-430 MHz band is contrary to the
                International Table. Consequently, other countries may permit radio
                services in the band that are not compatible with aeronautical mobile
                use of this band. If the Commission adopts an Aeronautical Mobile
                allocation for this band, does it need to place restrictions on use of
                the allocation to prevent harmful interference occurring to radio
                services in other countries? Such restrictions could include
                prohibition of operations near international borders, power
                limitations, or use of directional antennas to direct transmission away
                from international borders.
                 7. 2025-2110 MHz Band. The NPRM addressed three frequency bands
                commonly used by commercial space launch entities at that time.
                However, since the NPRM was adopted in 2013, the commercial space
                launch industry has also begun to use the 2025-2110 MHz band to
                transmit control signals to launch vehicles. The Commission has granted
                access to this band during space launches using STAs issued under its
                Part 5 experimental licensing rules. The Commission expects that use of
                this band by the commercial space launch industry will continue to grow
                in the future and that establishing a permanent allocation for these
                services will provide more reliable access to this band than the STA
                process. The Commission therefore proposes to amend the Allocation
                Table by adding a co-primary non-Federal space operation (Earth-to-
                space) allocation to the 2025-2110 MHz band.
                [[Page 30862]]
                 8. The 2025-2110 MHz band is currently allocated for both Federal
                and non-Federal fixed and mobile use. The largest non-Federal use of
                the band is for the Broadcast Auxiliary Service (BAS) operating under
                Part 74 of the Commission's rules. BAS stations make it possible for
                television and radio stations to transmit program material from the
                site of a breaking news story or a major event to the studio for
                inclusion in a broadcast program. BAS stations are also used to
                transmit programming material from a studio to the broadcasting
                transmitter or between television broadcast stations. BAS shares the
                2025-2110 MHz band with the Cable Television Relay Service (CARS) and
                the Local Television Transmission Service (LTTS), which ``have
                technically and operationally similar stations[.]'' The Commission's
                rules encourage BAS, CARS, and LTTS users of this band to consult with
                local coordination committees in selecting their frequencies to avoid
                causing harmful interference with each other's operations.
                 9. Since 2000, the 2025-2110 MHz band has been allocated for
                Federal space operation, space research, and earth exploration
                satellite services. While these Federal allocations are co-primary,
                these uses in general are not allowed to constrain BAS, CARS, and LTTS
                deployment and must be coordinated with these non-Federal operations.
                Federal use of these allocations continues to increase as Federal users
                seek to increase resiliency and deploy large constellations of smaller
                satellites. To date, sharing of this band between Federal operations
                and BAS, CARS, and LTTS users has been successful.
                 10. Federal primary fixed and mobile service allocations were added
                to the 2025-2110 MHz band in 2014. Footnote US92 restricts Federal use
                of the band to the military services and places specific requirements
                upon federal systems to facilitate sharing of the band with incumbent
                Federal and non-Federal services. The military services' transition
                plans include the relocation of certain terrestrial systems from the
                1755-1780 MHz band into the 2025-2110 MHz band. The process of
                relocating Federal systems into the band is currently on-going.
                 11. Multiple commercial space launch operators either have used or
                have indicated that they plan to use the 2025-2110 MHz band to support
                their launch operations. SpaceX has used this band to send command
                signals to the first stage of its Falcon 9 launch vehicle as it lands
                either on a recovery drone ship or on land. Blue Origin has used this
                band to transmit command signals to its suborbital New Shepard launch
                vehicle and plans to use it in the future for orbital launches of its
                New Glenn launch vehicle. Rocket Lab has used this band to conduct
                ground testing for its Electron Launch Vehicle and plans to use it in
                the future to command the third stage of its launch vehicles. These
                operations have been conducted using STAs issued by the Commission
                under its Part 5 experimental rules. The Commission expects that use of
                this band by the commercial space launch industry will continue to grow
                in the future. The Commission seeks comment on the projected future use
                of this band for space launch activities.
                 12. To support the commercial space launch industry, the Commission
                proposes to amend the Allocation Table by adding a co-primary non-
                Federal Space Operation (Earth-to-space) (space-to-space) allocation to
                the 2025-2110 MHz band. Given the heavy use of this band by BAS, CARS,
                and LTTS, and the increasing Federal use of the band, including for
                Federal space systems, these service rules will need to provide for
                coordination with these operations. As the Commission expects the
                number of launches to continue to increase in the future, the
                Commission believes that adopting this approach will be more feasible
                than relying on the current STA process. The Commission seeks comment
                on this allocation proposal.
                 13. The Commission proposes to allow use of the entire 2025-2110
                MHz band without any restriction on where licensed launches may occur.
                The Commission notes that for the Space Operation allocation for the
                2200-2290 MHz band, the Commission considered whether the use of that
                spectrum should be restricted to launches at Federal ranges. In
                addition, the Space Operation allocation the Commission is adopting for
                the 2200-2290 MHz band for space launches restricts non-Federal space
                operations to specific portions of the band. Both of these restrictions
                were requested by NTIA to facilitate coordination with the existing
                Federal users of this bands. The Commission seeks comment on whether
                limiting launches to certain frequencies or locations is needed to
                facilitate coordination between non-Federal and Federal users. Should
                use of this band for space launches be limited to only portions of the
                band? Considering the restrictions placed on Federal uses of the band,
                should these same restrictions be placed on new non-Federal uses of the
                band? Are other restrictions also required to protect the incumbent and
                incoming Federal uses of the band? Is there any reason to restrict use
                of the band to launches conducted at specific locations such as at
                Federal ranges or FAA licensed launch sites given that the Commission
                are not placing any such restrictions on use of the Space Operation
                allocation the Commission are adopting for the 2200-2290 MHz band?
                Considering the Federal and non-Federal uses of the band, would it
                serve the public interest to adopt any of these restrictions? The
                Commission notes that many recent launches using this band have been
                conducted from either Federal ranges or FAA licensed launch sites. For
                example, SpaceX has launched from Cape Canaveral, Florida and Rocket
                Lab has conducted launch testing at Wallops Island, Virginia. However,
                Blue Origin has launched from Van Horn, Texas, which is neither an FAA
                licensed launch site or at a Federal range. Should use of the Space
                Operation allocation be limited to space launches or are there other
                kinds of space operation uses that may be appropriate for this band?
                Are there any other restrictions that are needed to facilitate sharing
                of the band between the non-Federal space operation service and the
                other users of the band, in particular BAS, CARS, and LTTS?
                 14. 2200-2290 MHz Band. In addition to a Space Operation
                allocation, both the International Table and the Federal Table include
                a Mobile Service allocation allowing aeronautical mobile use. Would it
                serve the public interest to modify the non-Federal allocations for the
                2200-2290 MHz band to include a Mobile Service allocation in this band
                to facilitate licensing of commercial space launch operations in the
                commercial space launch operations context? The Commission notes that
                three frequencies in the 2360-2395 MHz band are available for both
                Federal and non-Federal use for telemetry and telecommand of launch and
                reentry vehicles under a Mobile allocation and its Part 87 rules. This
                use is identical to the launch vehicle telemetry for which space launch
                providers have obtained STAs for the 2200-2290 MHz band. To harmonize
                the allocation status and the applicable service rules of the 2200-2290
                MHz and 2360-2395 MHz bands, it may be appropriate to adopt a Mobile
                allocation for the 2200-2290 MHz band in addition to the Space
                Operation allocation the Commission has adopted. Therefore, the
                Commission seeks comment on whether the Commission should add a non-
                Federal secondary Mobile allocation to the 2200-2290 MHz band. What are
                the benefits and costs of subjecting commercial space launch operations
                to both terrestrial mobile service and space operations
                [[Page 30863]]
                regulatory frameworks? Does the Commission need to define the boundary
                between, when and how mobile service rules or space operations rules
                apply to space launch operations, if both allocations together cover
                the operations? If so, would it serve the public interest to make this
                boundary depend on the stage of the launch vehicle--earlier or later
                stages? How should the Commission define such stage boundaries? If the
                Commission were to divide space launch operations into stages, how
                should the Commission define space launch vehicles and should such a
                definition include any spacecrafts carrying payloads to their orbital
                locations? What are the domestic and international legal and policy
                ramifications of adopting such a clear dual allocation and service
                rules approach where the communications emanating from the same
                equipment would be considered under both terrestrial and space services
                allocations, and be regulated under one or the other, depending on the
                launch vehicle's position in its trajectory and distance from the
                earth? Alternatively, should the Commission regulate a space launch
                vehicle's operations throughout its trajectory under a single rule
                part? Commenters should discuss how the Commission can provide the most
                flexibility with the least regulatory burden while serving the public
                interest.
                 15. If the Commission adopts a non-Federal secondary Mobile
                allocation, the Commission proposes to implement this allocation by
                modifying the footnote to the U.S. Table that the Commission has
                adopted to implement the Space Operation allocation in the 2200-2290
                MHz band. Similar to the non-Federal space operations allocation, this
                mobile allocation footnote would restrict use of the band to pre-launch
                testing and space launch operations and require coordination of use of
                the band with NTIA prior to each launch. Are all of these restrictions
                appropriate for the Mobile allocation in this band? The Federal Mobile
                allocation for the 2200-2290 MHz band is currently restricted to line-
                of-sight use only, including aeronautical telemetry; excludes flight
                testing of manned aircraft; and prohibits the introduction of high-
                density mobile systems. Would it be appropriate to adopt any of these
                limitations on use of the non-Federal Mobile allocation? Are any other
                limitations on use of the non-Federal Mobile allocation necessary?
                 16. The Space Operation Service is defined in the Commission's
                rules as being ``concerned exclusively with the operation of
                spacecraft, in particular space tracking, space telemetry, and space
                telecommand.'' As the non-Federal Space Operation allocation the
                Commission has adopted in the Report and Order is limited to use for
                pre-launch testing and during space launch operations the use of this
                allocation is limited compared to what would normally be permitted
                under a Space Operation allocation. The Commission seeks comment on
                whether a greater range of non-Federal space operations should be
                permitted under the Space Operation allocation in this band--i.e.,
                should the restrictions the Commission has placed on use of this
                allocation be modified, reduced, or eliminated? Expanding the scope of
                this allocation could be especially useful for permitting communication
                between spacecraft during orbital and suborbital missions. For example,
                SpaceX has used the 2200-2290 MHz band for communication between its
                Dragon spacecraft and the International Space Station. As the
                commercial space industry continues to develop, the need for
                communication with and tracking of spacecraft is likely to increase. Is
                there a need for a non-Federal space operation (space-to-space)
                allocation in this frequency band, similar to the Federal allocation?
                In considering modifying any restrictions on non-Federal use of this
                band, the Commission must keep in mind the need to protect Federal
                operations in this band. How could permitting greater non-Federal space
                operations activities in the band be done while preventing harmful
                interference to Federal operations?
                 17. The non-Federal Space Operation allocation the Commission has
                adopted for the 2200-2290 MHz band is limited by US96 to four subbands:
                2208.5-2213.5 MHz, 2212.5-2217.5 MHz, 2270-2275 MHz, and 2285-2290 MHz.
                Recent space launches that have accessed this band for telemetry using
                STAs have used different portions of the band than these four subbands.
                The fact that the channels used for these launches were successfully
                coordinated with NTIA indicates that it may be possible to provide
                additional flexibility to space launch operators rather than limiting
                access to only these four subbands. To provide this flexibility, the
                Commission proposes to remove the restriction in US96 limiting use of
                the band for non-Federal space operations to the four subbands.
                Instead, under this proposal use of the Space Operation allocation
                during pre-launch testing and space launch operations could potentially
                occur in any portion of the 2200-2290 MHz band. Because of the heavy
                use that Federal agencies make of this band, use of this band for
                launches will need to be coordinated with NTIA. As Federal use of this
                band is likely to evolve over time, this coordination with NTIA will be
                necessary on a launch-by-launch basis.
                 18. While the Commission is proposing to remove the limitation on
                use of the Space Operation allocation to four subbands, it may still be
                appropriate to place some limitations on the spectrum that may be used
                during launches because the band will be shared with Federal users. The
                subbands currently in US96 are each 5 megahertz wide with a total of 20
                megahertz of spectrum potentially available for use for each launch.
                Should non-Federal use of this allocation be limited to channels with a
                necessary bandwidth of 5 megahertz as is currently required by US96?
                Should there be a limit on the total amount of spectrum available for
                use during a launch? If the Commission places limitations on the
                bandwidth in each channel or total bandwidth per launch, should there
                also be a means for these limits to be waived if there is sufficient
                justification? If the Commission leaves in place the restriction on
                non-Federal use of the 2200-2290 MHz band to a limited set of subbands,
                should the subbands be adjusted to reflect the fact that recent
                launches have used channels outside of these subbands?
                 19. While the NPRM proposed that the Commission adopt a primary
                Space Operation allocation for the 2200-2290 MHz band, the Commission
                has instead adopted a secondary allocation. Several commenters advocate
                adoption of a primary allocation claiming that it will lead to
                streamlined licensing, eliminate repeated licensing work, require less
                coordination, and provide greater certainty with respect to approvals.
                Although the secondary allocation the Commission adopts is clearly
                preferable to the current STA process, adopting a primary allocation
                may nevertheless be the most appropriate long-term band management
                policy. Adopting a primary allocation would place commercial launch
                operators on an equal footing with other users of the band and provide
                greater certainty to incentivize investment as the commercial space
                industry continues to expand with more frequent launches, privately
                developed launch facilities, and manned space flights. Therefore, the
                Commission seeks comment on whether it should adopt a primary Space
                Operation allocation for the 2200-2290 MHz band. The Commission notes
                that even if it adopts a primary non-Federal allocation for this band,
                individual launches would still have to be coordinated with NTIA
                [[Page 30864]]
                because of the heavy existing Federal use of the band.
                 20. 5650-5925 MHz Band. The 5650-5925 MHz band is used for radar
                tracking of launch vehicles during launches. This often involves
                placing a radar transponder on the launch vehicle, which responds to a
                ground-based radar signal that transmits tracking information back to
                the tracking station. Because launches in the past have occurred at
                Federal ranges, the radar tracking stations used during the launches
                have been Federal facilities. However, commercial launch providers have
                obtained experimental STAs for transponders on the launch vehicles that
                operate in the band.
                 21. The NPRM made two alternate proposals for providing commercial
                entities access to this spectrum for radar tracking during launches.
                Under the first proposal, the NPRM proposed to add a footnote to the
                U.S. Table providing a primary non-Federal radiolocation service
                allocation. The footnote would restrict use of the allocation to
                launches and pre-launch testing and would require coordination with
                NTIA. In a second proposal, the NPRM proposed to add a primary non-
                Federal radiolocation service allocation to the 5650-5925 MHz band with
                a footnote containing the same restrictions. The NPRM asked a number of
                questions concerning use of the band, such as the operational
                requirements for radar tracking during space launches, whether other
                radiolocation bands could be used, and if there are compatibility
                issues with Intelligent Transportation Systems that are primary in a
                portion of the band.
                 22. In response to the 2013 NPRM, the Commercial Spaceflight
                Federation recommended adding a non-Federal allocation to the 5650-5925
                MHz band, noting that the band is used by Federal radar facilities to
                track launches from government-owned facilities. The New Mexico
                Spaceport Authority applauded the Commission in recognizing the
                potential to mix Federal and commercial equipment within one system or
                service and requests that the Commission design future regulations to
                promote interoperability between Federal and commercial systems. The
                Aerospace Industries Association argued that no allocation is needed
                for the band, given that the band is used for radar tracking from the
                Federal launch range, which is managed by the range. Orbital ATK
                endorsed adding a non-Federal allocation to the band at 5765 MHz. No
                commenters who have discussed the needs of the commercial space
                industry with Commission staff in the past year have indicated an
                interest in using this band during space launches. In recent years,
                only one licensee has obtained licenses for use of the 5650-5925 MHz
                band.
                 23. The Commission seeks further comment on whether to adopt a non-
                Federal Radiolocation allocation for the 5650-5925 MHz band by adding a
                footnote to the U.S. Table. Should such an allocation be limited to use
                for pre-launch testing and tracking of launch vehicles? Radar
                transponders transmitting from commercial launch vehicles require
                licenses from the Commission, even if the vehicle is launched from a
                Federal or commercial launch site and tracked by a Federal ground-based
                radar tracking facility. As there currently is no non-Federal
                Radiolocation allocation for this band, the Commission issues
                experimental STAs to authorize operations in the 5650-5925 MHz band to
                support commercial launches. This case-by-case procedure may become
                more burdensome as the commercial launch industry grows. However, given
                the apparent low interest in this band for radar tracking during
                launches, there may be no need to adopt this allocation. Hence, the
                Commission seeks comment on the number of launches likely to need
                access to this band in the future. Given that recent STAs issued for
                use of this band have used only the 5758-5772 MHz portion of the band,
                should the allocation be limited only to a portion of the band? Should
                the allocation be primary or secondary? Should use of the band be
                limited to specific locations such or Federal ranges or FAA-licensed
                launch sites?
                 24. In addition to having an allocation for Federal radiolocation,
                the 5650-5925 MHz band is shared with other services. The 5850-5925 MHz
                band has a primary non-Federal Mobile allocation with use of this
                allocation in the 5895-5925 MHz band limited to the Intelligent
                Transportation System radio service. Because launch facilities are
                generally not located near public roads and the signal emanates from
                high in the sky, ensuring a weak signal at ground level, the Commission
                expects negligible, if any, impact on Intelligent Transportation
                Systems in the upper portion of the band. Is this expectation
                reasonable? If use of this band for space launches would impact
                Intelligent Transportation Systems in the upper portion of the band,
                are there specific accommodations the Commission could take to minimize
                that impact? The 5650-5895 MHz band is currently used by Unlicensed
                National Information Infrastructure (U-NII) devices operating under the
                Commission's Part 15 rules. U-NII devices operating in the 5650-5725
                MHz portion of the band employ dynamic frequency selection (DFS) to
                detect the presence of radar signals to avoid causing interference.
                Will DFS successfully enable coexistence between U-NII devices and
                space launch radars in this portion of the band? In the 5725-5850 MHz
                band, U-NII devices operate without the use of DFS. Are there steps the
                Commission could take to minimize interference between space launch
                radar operations and U-NII and ITS operations in the upper portion of
                the band? If interference between these operations is likely, should
                the Commission limit this new radar allocation to the frequencies below
                5725 MHz? The 5850-5925 MHz band is also allocated to the fixed-
                satellite service in the uplink direction with use limited to
                international, inter-continental systems. Given the limited number of
                earth stations and limited number of launch sites, the Commission
                expect that sharing would be feasible though coordination. The
                Commission seeks comment on this view.
                 25. Licensing and Technical Rules for Space Launch Operations. In
                this section, the Commission proposes to adopt rules for new non-
                Federal space launch operations. As an initial matter, the Commission
                seeks comment on how to define non-Federal ``space launch operations.''
                The STAs that the Commission has granted in the 2200-2290 MHz band, for
                example, have included telemetry from the launch vehicle and the
                payload, during the initial space launch, the orbital phase (including
                docking with the ISS), and return and reentry of the space launch
                vehicle. If the Commission were to cover communications needs during
                these operations, do these operations include all activities that may
                be needed for a successful commercial space launch operation? Would it
                serve the public interest to include all of these operations in the
                definition of ``space launch operations''? Is there a need to limit or
                further expand the definition to include other space operations? The
                Commission also seeks comment on whether and how to define ``space
                launch vehicle'' and whether there should be any distinction between a
                ``launch vehicle'' or a ``reentry vehicle'' for space launch operations
                purposes. The Commission seeks to establish rules that flexibly,
                efficiently, and effectively support the evolving spectrum requirements
                of commercial space launch operations while continuing to adequately
                protect vital Federal operations in the bands. In that regard, the
                Commission seeks comment on the appropriate licensing and technical
                [[Page 30865]]
                rules to meet these goals. First, the Commission seeks comment on the
                appropriate licensing framework for the non-Federal space launch
                operations in the 2200-2290 MHz band, the proposed non-Federal space
                launch operations in the 420-430 MHz and 2025-2110 MHz bands, and the
                potential non-Federal launch tracking operations in the 5650-5925 MHz
                band. The Commission also seeks comment on which Commission rule parts
                should apply to different elements of space launch operations, and on
                how to integrate these various provisions to facilitate operations of
                space launch services, including potentially by creating a new stand-
                alone rule part. The Commission proposes and seeks comment on specific
                licensing rules, such as rules governing scope of service, eligibility,
                license period, application processing rules, and coordination
                requirements, as well as technical rules that will foster
                interoperability of equipment used for non-Federal and Federal launches
                and rules regarding equipment authorization. Finally, the Commission
                seeks comment on whether the Commission should update any rules
                regarding space launch vehicle use of aeronautical telemetry in the
                2360-2395 MHz band.
                 26. Applicability of Certain Sections of Part 87 (Aeronautical
                Mobile). Existing licensing and operating rules under Part 87 currently
                support commercial space launch operations in the 2360-2395 MHz band
                and offer an established regulatory approach. The telemetry and
                telecommand uses identified for the non-Federal space launch operations
                in the 2200-2290 MHz band and the proposed non-Federal operations in
                the 420-430 MHz and 2025-2110 MHz bands are similar to space launch
                telemetry uses permitted in the non-Federal 2360-2395 MHz band, which
                are supported under Part 87, Subpart J flight testing rules. The
                Commission seeks comment regarding which rules under Part 87 would be
                the most appropriate model for non-Federal operations in the 2200-2290
                MHz, 420-430 MHz, and 2025-2110 MHz bands, as well as associated
                telemetry and telecommand functions, and on the benefits and costs of
                applying such rules. In Appendix D, the Commission sets forth proposed
                Part 87 rules that could be applied to these operations in these bands,
                if the Part 87 model is adopted.
                 27. The Commission notes that the initial launch and reentry phases
                of a space launch operation share some, but not all, of the
                characteristics of conventional aviation services, specifically flight
                test and aeronautical mobile telemetry uses, which are regulated under
                Part 87. Space launch operations may need additional flexibility for
                communications with ground stations in the United States, abroad, in
                space, and in some instances with other space stations, including
                satellites. The Commission also notes that certain Part 87 licensing
                and operational rules, while relevant to conventional aviation services
                generally, may not be appropriate for space launch operations. The
                Commission seeks comment on whether there are Part 87 general licensing
                and technical rules that may not be applicable for purposes of
                developing a regulatory framework for commercial space launch
                operations.
                 28. Applicability of Part 90 (Private Land Mobile). With respect to
                launch vehicle radar tracking functions, the Commission seeks comment
                on administering the proposed 5650-5925 MHz band radiolocation
                allocation as part of the Radiolocation Service, which is currently
                regulated under Part 90. In what phases of space launch operations is
                this radar tracking function needed? Are there any space launch
                operations phases, including orbital phases, that may require the
                Commission to formulate additional radar tracking rules and, if so,
                what are those and why would they be needed? The radiolocation uses for
                the 5650-5925 MHz band differ from the aeronautical telemetry uses
                governed under the Part 87 rules. Because radiolocation operations are
                generally regulated under Part 90, the Commission proposes to apply the
                existing licensing framework to the 5650-5925 MHz radiolocation use.
                This would apply to ground stations as well as to associated
                transponders affixed to the space launch vehicle for tracking purposes.
                The Commission seeks comment on the benefits and costs of this proposal
                and on other possible licensing frameworks. Specifically, is Part 90
                the appropriate licensing mechanism for ground stations and
                transponders affixed to the launch vehicle or should ground stations
                and associated transponders be licensed under Part 87? In Appendix D,
                the Commission set forth proposed Part 90 rules that could be applied
                to these operations in this band, if the Part 90 model is adopted.
                 29. Applicability of Part 25 (Satellite). The Part 25 rules provide
                for authorization of both space stations and earth stations. Under Part
                25, a ``space station'' is defined as a station located on an object
                which is beyond, is intended to go beyond, or has been beyond, the
                major portion of the Earth's atmosphere; ``space radiocommunications''
                is defined as any radiocommunication involving the use of one or more
                space stations. In addition, Part 25 includes a definition for
                ``spacecraft'' as a man-made vehicle which is intended to go beyond the
                major portion of the Earth's atmosphere. Given that space launch
                vehicles are intended to go beyond the major portion of the Earth's
                atmosphere, safely deliver their payloads (typically satellites), and
                then reenter the atmosphere, the Commission seeks comment on the
                benefits and costs of applying the definition of space stations under
                Part 25 of its rules, to radio communications stations on space launch
                vehicles. Additionally, some communications between launch vehicles and
                ground stations/earth stations may be conducted consistent with the
                Commission's rules applicable to earth stations and a space operations
                allocation in the U.S. Table of Frequency Allocations. The Commission
                notes that the Part 25 rules, including space station and earth station
                licensing processes, are designed to license spectrum use by commercial
                space services. The Commission seeks comment on which Part 25 rules
                could be applied, or used as a model for, the licensing of a space
                launch vehicle's communications through its full trajectory, and on the
                benefits and costs of this approach.
                 30. Integrating the Authorization of Space Launch Operations across
                Rule Parts. The Commission recognizes that while a space launch
                operation may involve distinct telemetry, tracking, and command
                operations uses, it may be more practical to address all functions
                under a stand-alone rule part. Another option would be to create one or
                more subparts specifically to support commercial space launch
                telemetry, tracking, telecommand, and other communications needs of
                space launch operations. These subparts could establish the conditions
                under which frequencies would be licensed for use during a space
                launch. The Commission seeks comment on these approaches or on any
                alternate approaches. How can the Commission facilitates reliable
                access to spectrum while meeting the changing communications needs of
                space launch operations during any point of a space launch vehicle's
                trajectory? The Commission seeks comment on the best way to authorize
                the use of the relevant spectrum bands to cover space launch
                operations, starting at the launch site through the launch vehicle's
                trajectory and until its final destination, including reentry, in a
                flexible, efficient, and effective manner.
                [[Page 30866]]
                Commenters should discuss the costs and benefits of any licensing
                approach that they propose.
                 31. Licensing Rules for Space Launch Operations. In the Report and
                Order, the Commission adopts a secondary allocation for the 2200-2290
                MHz band to support the current level of commercial launches and enable
                the continued growth of the commercial space launch industry.
                Consistent with the Report and Order, the Commission proposes certain
                service rules for the 2200-2290 MHz band and for the additional bands
                discussed herein.
                 32. As noted, the non-Federal space operations allocation the
                Commission has adopted for the 2200-2290 MHz band includes a
                restriction and limits pre-launch testing and space launch operations
                to the 2208.5-2213.5 MHz, 2212.5-2217.5 MHz, 2270-2275 MHz, and 2285-
                2290 MHz subbands. Consistent with the current allocation, the
                Commission seeks comment on restricting the use of the 2200-2290 MHz
                band for pre-launch testing and space launch operations to these four
                subbands in its service rules. Contingent on the adoption of this
                proposal, the Commission proposes to permit licensees to use additional
                frequencies outside the four subbands upon adequate justification for
                why such additional frequencies are necessary and in the public
                interest, on a case-by-case basis. Any requirement for frequencies for
                use during launches will have to be balanced with the use of the band
                by Federal systems and coordinated with NTIA. As noted in the Report
                and Order, any use will be limited to the telemetry and tracking
                operations of launch vehicles during pre-launch testing and during
                space launch operations. In the FNPRM above, however, the Commission
                also seeks comment on whether to remove the allocation restriction
                limiting use of the 2200-2290 MHz band for non-Federal space operations
                to the four subbands, such that use of the Space Operation allocation
                during pre-launch testing and space launch operations could potentially
                occur in any portion of the 2200-2290 MHz band. Thus, the Commission
                also seeks comment on whether, to provide greater flexibility in
                spectrum use, the Commission should remove any presumptive limitation
                to the four subbands in the service rules as well given that the use of
                any spectrum in the 2200-2290 MHz band would be separately coordinated
                for each launch.
                 33. The Commission also proposes to add a provision restricting use
                of the proposed 420-430 MHz allocation to the transmission of flight
                termination signals during pre-launch testing and launches. This
                transmission would provide for a flight termination signal if a space
                launch vehicle goes astray. Because a launch vehicle which has gone
                off-course can endanger lives, the flight termination signal link must
                be extremely reliable. Therefore, it may not be possible to permit
                additional uses--particularly those that are not safety-of-life
                services--in the band.
                 34. Further, the Commission proposes to restrict the commercial
                launch use of the 2025-2110 MHz band to telecommand uplink
                transmissions from the ground controller stations to the space launch
                vehicle in the event that the Commission adds a non-Federal Space
                Operation allocation to this band. This allocation would enable space
                launch providers to transmit to their space launch vehicles during the
                launch and recovery phase of operations. The largest use of the 2025-
                2110 MHz band is for the BAS. This band is heavily used by BAS, CARS,
                and LTTS operations, as well as by Federal entities for space
                operations, space research, and the earth exploration satellite
                service. Considering these existing operations, as well as operations
                by non-Federal launches on a special temporary authority basis to date,
                is it feasible to accommodate uses in addition to the space launch
                telecommand uses described above?
                 35. The Commission further proposes to add a restriction to limit
                use of the 5650-5925 MHz band to launch vehicle tracking. Although
                frequencies in the 5650-5925 MHz band are available to support certain
                non-Federal uses, the predominant use in the band is radiolocation,
                with Federal entities using the band for a wide variety of radar
                applications, including launch vehicle tracking. In order to promote
                interoperability with existing Federal radar tracking functions and to
                limit impact to other uses, the Commission proposes to restrict
                commercial space launch vehicle uses of this band to radar tracking.
                 36. The Commission seeks comment on these proposals. In particular,
                the Commission seeks comment on whether these proposals provide
                sufficient flexibility for existing and future needs of non-Federal
                launch activities or whether additional uses should be accommodated if
                technically feasible. Additional uses in the bands beyond those
                specified above may not currently be possible due to technical
                characteristics and existing uses of the bands. However, the Commission
                seeks comment on whether to provide flexibility to enable other uses if
                it determines such uses are technically feasible and will not restrict
                or cause harmful interference to existing uses and incumbent
                operations. The Commission seeks comment on the costs and benefits of
                limiting the scope of uses in these bands. Commenters also should
                discuss what other measures the Commission should consider to promote a
                competitive marketplace for space launch operations and services.
                 37. Eligibility. In the Report and Order, the Commission explains
                that opening this spectrum to the commercial space launch industry
                would encourage entrepreneurial efforts by providing commercial space
                entities certainty in their access to the spectrum that they need to
                promote the advance planning and investment necessary for future space
                launch activities. The Commission therefore proposes to limit
                eligibility to hold authorizations for the 2200-2290 MHz band as well
                as the proposed 420-430 MHz, 2025-2110 MHz, and 5650-5925 MHz bands to
                non-Federal entities that conduct space launch operations. The
                Commission seeks comment on the extent to which the supplemental
                eligibility criteria for flight test stations, set forth in Sec.
                87.301, would be an appropriate model for space launch license
                eligibility. To be eligible for a new commercial space launch license,
                the Commission proposes that the applicant must qualify as one of the
                following: (1) An operator or manufacturer of a commercial space launch
                or reentry vehicle or space launch or reentry vehicle components; (2) a
                parent corporation or its subsidiary if either corporation is an
                operator or manufacturer of a space launch or reentry vehicle or space
                launch or reentry vehicle components; or (3) an educational institution
                or a person primarily engaged in the design, development, modification,
                and flight test evaluation of a launch or reentry vehicle or launch or
                reentry vehicle components. The Commission also seeks comment on
                whether to allow other entities that provide space-based services,
                including satellite service providers, to be eligible for commercial
                space launch licenses. The Commission seeks comment on these
                eligibility restrictions, including whether to expand or further
                restrict the scope of eligible entities.
                 38. Currently, each application for a flight test license under
                Part 87, Subpart J is required to include a certification to establish
                the applicant's eligibility for a license. Similarly, the Commission
                proposes to use this as a model to require an applicant for any
                commercial space launch frequencies to certify the eligibility criteria
                proposed above. The Commission tentatively concludes that requiring
                this certification would be in
                [[Page 30867]]
                the public interest and impose minimal burden on eligible entities. The
                Commission seeks comment on this proposal as well as on whether to
                impose any additional certification requirements. In some cases, the
                Commission has also required subsequent certifications by a licensee
                that stations comply with applicable technical requirements, such as in
                Sec. 25.133 of the Commission's rules. The Commission seeks comment on
                whether to require such a certification, through an appropriate check-
                box, by either license applicants or licensees.
                 39. Shared Frequency Use and Cooperative Use of Facilities. The
                Commission proposes to provide non-Federal space launch operators
                access to the 2200-2290 MHz band as well as the proposed 420-430 MHz,
                2025-2110 MHz, and 5650-5925 MHz bands on a shared, non-exclusive
                basis. The Commission traditionally has issued Part 87 licenses on a
                shared basis and not for the exclusive use of any licensee. Certain
                Part 90 radiolocation uses are also authorized on a similar shared
                basis. Similarly, the Commission's Part 25 satellite licensing rules
                also include provisions relating to shared and cooperative use of
                spectrum. Given that there is the potential for many different launch
                vehicle operators to use a given launch area, authorizing commercial
                space operations on a shared basis appears to be a reasonable approach
                for providing spectrum access for multiple space launch entities. It
                should be noted that, in this context, shared use status, while non-
                exclusive, does not mean that a licensee will be required to accept
                interference. The licensee will be entitled to interference protection
                for its launch operations. The Commission seeks comment on this
                proposal and request comments on other viable options.
                 40. Further, in the context of flight test operations, Part 87
                generally limits authorizations of flight test land stations to only
                one per airport, but it requires that these stations be made available
                without discrimination to anyone eligible for a flight test station
                license. This rule has enabled the shared use of facilities, which has
                reduced costs to licensees and promoted efficient use and competition
                in the aviation industry.
                 41. The Commission seeks comment on whether a similar non-
                discrimination policy for all space launch operations in the bands at
                issue is also necessary. The Commission is aware that there are launch
                sites that currently have ground transmitters for shared use, and it
                seeks comment on the practices involving ground stations at Federal
                ranges and FAA-licensed sites. Should the Commission adopt rules
                providing for non-discriminatory access of these facilities by non-
                Federal space launch entities? The Commission seeks comment on whether
                non-discriminatory shared use of these facilities is necessary to
                support the existing and future needs of commercial space launch
                entities. The Commission seeks further comment on the costs and
                benefits of a cooperative use of facilities approach, as well as other
                facilities that may require non-discriminatory access and ways to
                streamline these practices.
                 42. In licensing space launch operations, the Commission's goals
                are two-fold: (1) To encourage innovations and investments in the U.S.
                space commerce; and (2) to ensure a regulatory environment conducive to
                the establishment of a competitive U.S. commercial space launch sector
                while protecting Federal and other users in the bands. In this FNPRM,
                the Commission seeks comment on various licensing models with these
                goals in mind and aim to bring regulatory certainty in the marketplace
                while minimizing administrative burden and duplicative regulations.
                 43. Site-Based Licensing. A number of Part 87 services, including
                flight test station licenses, and Part 90 radiolocation services are
                authorized on a site-by-site basis. A site-based licensing model is
                helpful in a shared use situation as fixed, well-defined areas of
                operation simplify coordination during the application process for
                services requiring frequency coordination, and facilitate intensive
                spectrum sharing. Moreover, this approach enables the Commission and
                interested stakeholders to identify quickly licensees in the band and
                their specific areas of operation in the event interference issues
                arise, which allows parties to resolve such issues in the shortest
                timeframe practicable. The Commission seeks comment on these
                conclusions and whether to issue space launch licenses on a site-by-
                site basis. Would site-based licensing meet the needs of space launch
                operations? Does site-based licensing enable the safe and efficient
                operation of shared frequencies while providing the certainty and
                flexibility needed to support the existing and future needs of
                commercial space launch entities? Are space launch activities centered
                usually around certain sites? If the Commission were to adopt site-
                based licensing, how should the it define a site?
                 44. Other Licensing Options. The Commission also seeks comment on
                whether there are any other licensing models that may be suitable in
                the space launch operations context. For example, would it be
                appropriate to license specific space launch vehicles and list
                applicable ground stations (including those at the launch sites
                licensed by FAA) as authorized communications points with those
                vehicles? Another option would be to adopt a new approach combining
                various aspects of space-based services and aeronautical service
                licensing rules. If the Commission does so, what are the rules that
                would be most appropriate for licensing space launch services? Stations
                on space launch vehicles could be licensed similar to space stations
                and the communicating ground/earth stations could be licensed on a
                single or multiple site basis. A ground/earth station's operations also
                could be conditioned, for example, on filing of a certification before
                a planned space launch to certify that any required frequency
                coordination has been satisfactorily completed and the relevant ground/
                earth stations are in compliance with all applicable legal and
                technical rules that the Commission might adopt for space launch
                operations. Or licensing of space launch operations could be similar to
                licensing models applicable to certain wireless services such as the
                3650-3700 MHz band, and the 71-76 GHz, 81-86 GHz, 92.0-94.0 GHz, and
                94.1-95.0 GHz bands. Pursuant to these approaches, space launch
                operators could have access to various spectrum bands on a non-
                exclusive, yet protected, basis, but would be subject to measures
                designed to promote shared use of spectrum, such as a registration and
                frequency coordination requirement prior to each launch. With respect
                to the terrestrial nationwide, but non-exclusive, licensing approach,
                which typically has been used for shorter-distance terrestrial wireless
                services, could such a licensing approach be effective as applied to
                all phases of operations, including orbital phases? Could such a
                licensing process streamline the information that would be needed for
                initial licensing and then registration and coordination prior to a
                planned launch? The Commission seeks comment on the feasibility, costs,
                benefits, and potential challenges (if any) associated with each of
                these proposals.
                 45. Comments should discuss any needed changes that should be made
                to reduce potential administrative burdens and streamline the site-
                based licensing process as well as any other alternatives. The
                Commission also seeks comment on service area definitions as well as
                alternatives and the costs and benefits of proposed alternatives.
                [[Page 30868]]
                 46. Authorized Bandwidth. The Commission proposes to grant licenses
                for non-Federal operations in the 2200-2290 MHz band using a 5
                megahertz bandwidth, similar to NTIA's limit for transmissions by
                Federal space-to-Earth operations in the band. The Commission further
                seeks comment on permitting licensees to use larger bandwidths upon
                adequate justification for why such bandwidth are necessary and in the
                public interest, on a case-by-case basis. Any requirement for
                additional bandwidth for use during launches will have to be balanced
                with the use of the band by Federal systems and coordinated with NTIA.
                The Commission's review of experimental authorizations requested for
                the 2200-2290 MHz band indicates that the majority of applications
                involved requests for bandwidths of less than 5 megahertz. The
                Commission tentatively concludes that licensing the 2200-2290 MHz band
                in 5 megahertz channel blocks will likely accommodate most non-Federal
                launch vehicle operations in the band and provide licensees with
                greater flexibility than authorizations with a smaller bandwidth. This
                approach is consistent with NTIA's stated preference. The Commission
                seeks comment on this approach as well as other approaches. The
                Commission notes that 2360-2395 MHz band space launch telemetry and
                telecommand operations may be authorized in bandwidths of 1, 3, and 5
                megahertz. Should the Commission similarly authorize the 2200-2290 MHz
                band in a range of bandwidths?
                 47. As discussed, the Commission is proposing to allocate the
                entire 420-430 MHz and 2025-2110 MHz bands for flight termination and
                telecommand uses, respectively, and is seeking comment regarding the
                portions of the 5650-5925 MHz band that should be allocated for launch
                vehicle tracking purposes. The Commission seeks comment on the
                appropriate bandwidth or spectrum blocks for the proposed 420-430 MHz,
                2025-2110 MHz, and 5650-5925 MHz allocations. The Commission notes that
                the bandwidths associated with experimental authorizations granted for
                frequencies in the 2025-2110 MHz and 5650-5925 MHz bands have varied in
                size. The Commission seeks comment on the typical and/or necessary
                bandwidths applicable to the space launch uses specified in this
                proceeding. Consistent with an NTIA recommendation, the Commission
                further seeks comment regarding the 420-430 MHz band, specifically on
                ``the most appropriate frequencies . . . for each designated launch
                facility based on which frequencies can be supported for sending
                command destruct/flight termination signals.''
                 48. License Term and Renewal. The Commission historically has
                established ten-year terms for wireless radio service licenses,
                including Part 87 aviation and Part 90 radiolocation licensees. In the
                satellite licensing context, most satellites are authorized for a 15-
                year license term. The Commission tentatively concludes that ten-year
                terms will provide certainty and flexibility for space launch providers
                and therefore proposes to issue commercial space launch licenses for
                ten-year terms. The Commission recognizes, however, that the spectrum
                and use must be carefully managed and coordinated due to the heavy use
                of these bands, and the Commission notes that it has granted shorter
                license terms for Part 87 flight test stations pursuant to the
                frequency coordination process as a means to manage and ensure periodic
                reevaluation of possible interference issues. Several commenters have
                suggested a shorter five-year period as an appropriate license term.
                The Commission seeks comment on alternative license terms.
                 49. The Wireless Radio Services (WRS) proceeding established the
                process for renewing a site-based license. Specifically, it provided
                that a site-based WRS licensee will meet our renewal standard if it can
                certify that it is continuing to operate consistent with its most
                recently filed construction notification (or most recent authorization,
                when no construction notification is required), and make the
                certifications regarding permanent discontinuance and substantial
                compliance with Commission rules and policies that are applicable to
                all renewal applicants seeking to avail themselves of one of the
                renewal safe harbors. Services subject to this site-based renewal
                standard include the Part 90 Radiolocation Service. The Commission
                proposes to extend this renewal standard to licensees in the 5650-5925
                MHz band to the extent the Commission applies the Part 90 Radiolocation
                Service rules to this band. The Commission request comment on this
                proposal.
                 50. The WRS Order does not apply to Wireless Radio Services that
                are licensed by rule or on a ``personal'' basis or that have no
                construction/performance obligation. This includes most Part 87
                services. The Commission seeks comment on whether to require commercial
                space launch licensees make a ``renewal showing,'' for instance,
                certifying that it is operating consistent with its initial application
                for authorization or that it has complied with the required
                coordination. The Commission seeks comment on whether this renewal
                showing is warranted for the bands at issue given the heavy use by
                Federal agencies. The Commission believes that requiring a renewal
                showing in these bands would facilitate efficient spectrum use by
                ensuring that licensees use the spectrum productively, collaboratively,
                and in compliance with Commission rules during their initial license
                terms. The Commission seeks comment on the costs and benefits of
                imposing a renewal requirement for commercial space launch operations
                licensees.
                 51. Application Process. The Commission seeks comment on the
                application process to be used to assign commercial space launch
                licenses. As an initial matter, the Commission seeks comment on whether
                assignment of space launch operations licenses is subject to Section
                309(j) of the Communications Act. The Commission notes that, while
                Section 309(j) of the Communications Act requires that it assign
                spectrum licenses through the use of competitive bidding for mutually
                exclusive license applications, the shared, non-exclusive licensing the
                Commission is proposing for the spectrum bands at issue would not
                result in mutually exclusive applications and thus would not be subject
                to such competitive bidding requirements. However, where Section 309(j)
                applies and to the extent that the Commission determines that it is in
                the public interest to adopt a licensing scheme that would result in
                mutually exclusive license applications, it proposes to use the general
                competitive bidding rules set forth in Part 1, Subpart Q, of the
                Commission's rules. The Commission seeks comment on these conclusions
                and proposals.
                 52. With respect to application framework, the Commission is aiming
                to establish an application framework that would increase the
                regulatory certainty while reducing the administrative burden. One
                approach would be to apply the existing licensing framework for Part 87
                and Part 90 licensees to commercial space launch operations
                applications. Currently, applicants for Part 87 flight test stations
                and Part 90 radiolocation licenses are required to submit FCC Form 601
                and associated schedules through the Universal Licensing System (ULS).
                The Commission seeks comment on requiring applicants seeking
                authorization for 2200-2290 MHz as well as the proposed 420-430 MHz,
                2025-2110 MHz, and 5650-5925 MHz
                [[Page 30869]]
                frequencies to file an FCC Form 601 and applicable schedules through
                ULS under the appropriate rule part designation. The Commission seeks
                comment on the benefits and costs of this approach. Another approach
                would be to use aspects of Form 312 and Schedule S, with narrative
                legal and technical information similar to licenses under Part 25 and
                filing in the International Bureau Filing System (IBFS). The Commission
                seeks comment on these and any alternative approaches.
                 53. Depending on the licensing scheme, for example, if the
                Commission adopts site-based licensing, would it be in the public
                interest to license the bands individually and use separate
                applications for separate spectrum bands? The Commission recognizes
                that not all operators will seek authorization for all of the bands at
                issue. Moreover, even where an applicant seeks multiple frequency
                bands, the applicant may not have the same site or area of operation
                for each of the bands. Would separate licensing of separate bands be
                less burdensome and provide more flexibility for applicants than a
                single multi-band license application process, similar to space station
                and earth station licensing? Would some of the differences in
                operational parameters be addressed more efficiently in a nationwide
                non-exclusive licensing application which would be coupled with a
                planned launch coordination registration? Are there any coordination
                issues in any of the frequency bands that would benefit from site
                licensing? Would it be simpler and less costly for the Commission to
                incorporate into the existing ULS or IBFS licensing processes and/or
                forms? What are the most efficient and effective way to license space
                launch operations that will provide operators with substantial benefits
                in terms of flexibility and efficiency, and will facilitate rapid
                implementation of this service?
                 54. To support the evolving communications needs of space launch
                entities and to provide flexibility sufficient to support innovation
                and investment in new technologies, the Commission seeks comment on how
                to allow applicants for space launch licenses to request authorization
                covering all launches within their license terms. The Commission also
                seeks comment on any measures needed to implement a multi-launch
                approach. For example, how should the Commission account for any
                variances in vehicle trajectory or spectrum usage from launch to
                launch? Should operators be required to file a modification or
                notification to change certain characteristics of their license, and if
                so, which characteristics? Which of these variances must be reflected
                in the license and which ones can be addressed during a planned launch
                coordination stage on a case-by-case basis? What information should be
                required to be provided at the licensing application stage and the
                planned launch stage?
                 55. If the Commission were to adopt a site-based licensing system
                for commercial space launch operations, under this proposal, applicants
                may request: (1) Fixed stations on the ground, (2) mobile stations on
                the ground, and/or (3) stations on launch vehicles. For fixed ground
                site locations, each applicant would include in its application the
                specific coordinates for its proposed fixed sites. Because most space
                launch entities conduct launches at specific fixed sites, the
                Commission does not anticipate that providing this information will be
                burdensome. For mobile stations on the ground, each applicant would
                specify a mobile area of operation, as defined by a center point and
                radius governing their area of operation. Would this definition of
                mobile area of operation provide licensees the flexibility needed to
                support the existing and future needs of space launch entities? The
                Commission seeks comment on this proposed definition of mobile area of
                operation and on alternate definitions that might further its goals of
                providing flexibility to space launch operators while protecting other
                uses in the bands. For example, should the mobile area of operation be
                defined by a specific county or some other metric, such as an option
                that allows the applicant to describe in text the proposed area of
                operation? For stations on launch vehicles, these stations can be
                authorized within a specific area of operation with a center point and
                radius coordinated and approved by an approved frequency coordinator.
                The Commission seeks comment on these proposals. The Commission further
                seeks comment on whether an applicant's ground stations in the United
                States should be licensed separately from the launch vehicle stations
                with which they are communicating, or whether those operations may be
                encompassed within a single license.
                 56. Launch vehicle operations can be categorized broadly into two
                take-off modes: A vertical take-off like a traditional launch vehicle
                or a horizontal take-off from a runway. In addition, launch vehicles
                can be either expendable or reusable. Further, an operator may seek to
                use different launch vehicles from launch to launch. The Commission
                seeks comment on whether the proposed site-based licensing framework
                and area of operation definitions will adequately accommodate all of
                these initial launch and reentry scenarios. To the extent that
                commenters believe that the proposals cannot be applied satisfactorily
                to all take-off, flight, and landing operations, the Commission
                requests comment on alternate licensing options or definitions. The
                Commission asks commenters to evaluate the costs and benefits of these
                proposals as well as alternatives or additional requirements that may
                be needed to improve the application process and to address the
                specific needs of the commercial space launch industry.
                 57. ITU Process. The Commission notes that the International
                Telecommunication Union (ITU) Radio Regulations are treaty provisions
                binding on the United States, and require that no transmitting station
                may be established or operated by a private person or by any enterprise
                without a license by or on behalf of the government of the country to
                which the station in question is subject. The Communications Act of
                1934, as amended, provides the FCC with authority to take actions to
                implement the ITU Radio Regulations. The operations of the radio
                facilities on launch vehicles therefore must be authorized consistent
                with the ITU Radio Regulations. Because these operations could cause
                harmful interference in other countries, the Commission proposes to
                require applicants to submit appropriate draft documentation for
                submission to the ITU. The Commission seeks comment on this proposal
                and whether there are other alternatives, including bi-lateral
                coordination with affected countries, to coordinate and minimize
                harmful interference from any FCC authorized space launch operation.
                 58. The Commission seeks comment more generally on the ITU process
                as it relates to space launch vehicle licensing and operations. In the
                space station context, operators provide information to the Commission
                for submission to the ITU as part of the space station application or
                authorization process. If the Commission were to decide to apply this
                process, the Commission seeks comment on how and when launch vehicle
                operators should provide it with information for submission to the ITU.
                One possibility would be an approach where launch vehicle applicants or
                licensees submit information to the Commission for an ITU submission
                regarding an upcoming planned launch
                [[Page 30870]]
                a certain number of days prior to the planned launch. The Commission
                seeks comment on this approach and on alternatives. The Commission
                notes that this process is likely to vary depending on the licensing
                regime adopted, in particular on the scope of the license, such as
                whether a license covers multiple launches, including multiple launch
                trajectories. The Commission seeks comment on how the scope of the
                license should affect the applicant's submission of information for the
                ITU process.
                 59. Space Launch Vehicle Operations Outside the United States. The
                Commission observes that launch vehicle flight paths will commonly
                extend downrange beyond the U.S. territories, requiring the space
                launch vehicle to communicate with ground-based telemetry, tracking,
                and telecommand stations located outside of the United States,
                particularly in the 2025-2110 MHz and 2200-2290 MHz frequency bands.
                Such communications could be considered within the scope of a Part 87
                authorization, for example, or be addressed by a licensing approach
                covering launch vehicles that would allow operations of such vehicles
                with ground stations both within and outside the U.S. territories,
                similar to a space station license under Part 25. The Commission seeks
                comment on these observations and the best way to authorize the use of
                the relevant spectrum bands to cover these operations.
                 60. The Commission seeks comment on whether it should view such
                launch vehicle operations as being authorized under the applicable
                site-based license subject to the requirement that such use is
                identified in the application and ITU coordination is completed. Or
                should such use be separately authorized? Would an alternative type of
                license better address operations with ground/earth stations outside
                the United States? The Commission notes that the ability of a launch
                vehicle operator to obtain ground station authorizations outside the
                United States may be dependent upon U.S. launch vehicle licensing and/
                or ITU coordination and/or notification procedures, as needed. The
                Commission seeks comment on the various licensing approaches, given the
                need for down-range communications, and on the role that ITU
                coordination should have in the particular licensing approach.
                 61. Operations Inside the United States with non-United States
                Space Launch Vehicles. The Commission seeks comment on how the
                Commission should authorize ground station operations in the United
                States with space launch vehicles that are not authorized by the United
                States. For example, a space launch vehicle originating from a non-U.S.
                launch site and not otherwise authorized by the United States may seek
                to communicate with ground stations in the United States. Should the
                Commission adopt a process for ground station operators to request
                communications with these launch vehicles? For example, in the context
                of Part 25 satellite licensing, ground/earth station operators in the
                United States can apply for authority to communicate with non-U.S.-
                licensed space stations. In the space launch context, should
                applications be filed by the U.S. ground/earth station operators? And,
                if so, what information should be required?
                 62. Alternative Approach. The Commission also seeks comment on
                whether an authorization should be structured to cover all the bands
                allocated for commercial launch services, including operations outside
                the United States, discussed above. In other words, a single license
                application would be used to request multiple spectrum bands and
                associated uses on a single launch vehicle. For example, if a launch
                vehicle receives a flight termination signal in one frequency band and
                operates TT&C in a different frequency band, what are the costs and
                benefits to those operations being covered under a single space launch
                operations license? Would such an approach streamline our licensing
                processes or complicate them? What are the procedural and legal
                challenges that the Commission needs to consider with such a licensing
                approach? This approach also could be combined with the site-based or
                nationwide non-exclusive licensing approaches discussed above. Would
                such an approach serve the public interest? If the Commission were to
                adopt such an approach how can it be implemented? What licensing
                information should be required at the licensing application stage and
                the planned launch coordination stage? The Commission requests comment
                on these alternatives and seeks input on any other alternatives it
                should consider. The Commission asks that commenters discuss the
                impacts of a proposal, including associated administrative burdens or
                benefits.
                 63. Frequency Coordination. Frequency coordination minimizes the
                likelihood of interference between operations and facilitates the
                efficient use of spectrum. The Commission seeks comment on the
                appropriate coordination process between Federal and non-Federal users
                to be used prior to the grant of an application for space launch
                frequencies as well as a coordination process for the ongoing use of
                these frequencies by operators during their license terms.
                 64. As discussed in the Report and Order, the Commission shares
                licensing authority with NTIA. Section 301 establishes the Commission's
                licensing authority over non-Federal stations, and section 303 grants
                the Commission authority to ``[m]ake such rules and regulations and
                prescribe such restrictions and conditions, not inconsistent with law,
                as may be necessary to carry out the provisions of this [Act.]''. NTIA
                maintains licensing authority over Federal stations pursuant to section
                305(a). The Commission and NTIA's shared licensing authority is guided
                by an established set of procedures for developing regulations for
                radio services in the shared bands and for authorizing frequency use by
                Federal agencies and Commission licensees.
                 65. These procedures, set forth under the Memorandum of
                Understanding (MOU) between NTIA and the Commission, require the
                agencies to endeavor to give notice to each other of ``all proposed
                actions that could potentially cause interference'' to non-Federal and
                Federal operations respectively. NTIA coordinates with Federal spectrum
                users through the Interdepartment Radio Advisory Council (IRAC), a
                committee that includes representation from different government
                agencies, and typically includes a review period of 15 business days.
                 66. Until the Commission adopts licensing and technical rules, the
                Commission will continue to coordinate STAs issued to commercial
                operators for space launch purposes with NTIA, pursuant to the MOU.
                Even after licensing and technical rules go into effect, the Commission
                will continue to have to pre-coordinate licenses with NTIA. Although
                the Commission is adopting one and proposing three other permanent non-
                Federal allocations for these bands, coordination is still required for
                use of these frequencies, given the potential for impacts to and from
                Federal users in these bands, as well as the potential for harmful
                interference among non-Federal users. The Commission therefore seeks
                input on a coordination procedure that will adequately minimize the
                potential for harmful interference, while also minimizing burdens on
                launch operators to the extent possible.
                 67. Pre-grant coordination. To help ensure that users in a band are
                protected from harmful interference, the Commission has incorporated
                various
                [[Page 30871]]
                coordination requirements in its service rules, particularly in bands
                with shared use, in addition to the standard IRAC process. For example,
                applicants for flight test station licenses under Part 87, Subpart J
                are required to meet all applicable frequency coordination
                requirements. Section 87.305 requires that, prior to submission of an
                application to the Commission, a frequency advisory committee must
                coordinate all frequency requests with applicable Federal Government
                area frequency coordinators and provide recommendations regarding
                operating parameters. A flight test station application must include a
                frequency coordination statement from the frequency advisory committee,
                which includes a technical evaluation and recommendations to minimize
                interference. Once the application is submitted to the Commission, the
                request is then also submitted to NTIA for coordination, pursuant to
                the FCC and NTIA's MOU.
                 68. The Commission seeks comment on whether it should require
                applicants for a license in space launch frequencies to undergo a pre-
                application coordination requirement similar to that specified in Sec.
                87.305. This pre-application coordination requirement historically has
                been successful in minimizing the risk of harmful interference between
                flight test stations and other users of the band. Adopting a similar
                process may be helpful in the space launch context given the heavy
                usage of these bands by Federal entities as well as other space launch
                operators and the potential of interference to these operations. While
                it may, on first glance, seem that there is duplicative review, the
                pre-application coordination helps to narrow down the acceptable
                operating parameters of the use, thereby reducing administrative
                burdens and expediting review once the application is submitted. The
                Commission seeks comment on whether to apply this pre-application
                coordination process, or whether, in the alternative, it should impose
                a different coordination process.
                 69. In this regard, the Commission observes that Federal entities
                seeking to use the 2025-2110 MHz band for TT&C uplink purposes must
                complete a similar coordination process prior to submitting an
                application for authorization to NTIA. A Federal entity must coordinate
                with all BAS and other non-Federal incumbents that may be affected by
                the Federal operation prior to submitting an application, and must
                engage the local BAS frequency coordinator(s), where available, in
                support of achieving such coordination. To the extent that the
                Commission adopts a non-Federal allocation in the 2025-2110 MHz band
                for TT&C uplink purposes, it seeks comment on whether to require
                commercial space launch operators seeking to use the band to follow the
                same pre-application coordination process to help ensure that launch
                operations will not cause harmful interference to applicable non-
                Federal and Federal incumbents in the band. Alternatively, the
                Commission seeks comment as to whether it should apply a different pre-
                application coordination, such as the process identified in Sec.
                87.305.
                 70. If the Commission determines it would be in the public interest
                to adopt a pre-application coordination requirement, should the
                Commission appoint a designated frequency coordinator to streamline the
                coordination process? The Commission designated the Aerospace and
                Flight Test Radio Coordinating Council (AFTRCC) as the frequency
                coordinating committee for non-Government flight test telemetry station
                assignments in the 1435-1535 MHz band and extended authority to the
                2310-2320 MHz and 2345-2390 MHz bands. If the Commission decides to
                appoint a specific frequency coordinator, would it be in the public
                interest to extend AFTRCC's authority, or should the Commission appoint
                a different entity?
                 71. Post-grant coordination. Given that the license terms
                associated with permanent authorizations may span several years, the
                Commission seeks comment on coordination between space launch licensees
                and other users of the respective bands for separate launch operations.
                The Commission notes that experimental STAs are approved, and thereby
                coordinated, on a per launch basis. By contrast, the Part 87 flight
                test rules do not require additional formal coordination once an
                application has been granted. Given the complicated logistics entailed
                in a space launch operation, as well as changes in the operational
                environment on and around Federal ranges and other sites that are
                likely to occur over time, the Commission does not believe that a one-
                time coordination would be effective to cover all launches that occur
                during the term of an operator's license. At the same time, the
                Commission also wishes to avoid a coordination process that is overly
                burdensome for launch operators or that injects uncertainty as to
                spectrum access. The Commission requests that commenters propose
                solutions for this issue in their comments.
                 72. The Commission seeks comment on other coordination processes
                that are streamlined and efficient for space launch entities yet are
                also adequately protective of Federal operations and consistent with
                the provisions of the Commission and NTIA's MOU. The Commission asks
                that commenters include detailed coordination procedures in their
                proposals, as well as the cost and benefits of the proposed process.
                The Commission notes that, given the importance in minimizing the
                potential for harmful interference to Federal and non-Federal uses
                alike in these bands, the Commission does not anticipate that
                coordination procedures would include a ``shot clock''--i.e., a
                provision that permits launch operators to move forward if review has
                not been completed by a certain date. The Commission seeks comment,
                however, on whether notification procedures could, under some
                circumstances or conditions, be sufficient to meet coordination
                requirements.
                 73. Technical Rules for Space Launch Operations. The Commission
                seeks comment on a proposed technical framework and on additional
                technical requirements for operations in the non-Federal allocations in
                the 2200-2290 MHz band and for operations in the proposed non-Federal
                allocations in the 420-430 MHz, 2025-2110, and 5650-5925 MHz bands. The
                Commission seeks to develop a technical framework and requirements that
                can address the unique needs of the commercial space sector.
                 74. The Commission's goal in establishing a technical framework for
                commercial space launch operations is to develop rules that support the
                evolving interests and requirements of commercial space entities while
                minimizing harmful interference between Federal and non-Federal
                operations. The Commission finds that the current framework that
                applies to Federal operators offers a predictable and tested model that
                promotes the efficient use of spectrum while minimizing interference
                among users in these bands. The Commission therefore proposes to adopt
                a similar set of technical rules to non-Federal space launch operations
                in the newly allocated 2200-2290 MHz band as well as in the proposed
                allocations. The Commission finds that adopting a technical framework
                similar to that which currently applies to Federal operations will
                promote interoperability and allow commercial launch providers to
                benefit from the economies of scale inherent from using the same radio
                systems for both Federal agencies and commercial customers.
                 75. In the 2013 Notice of Proposed Rulemaking, the Commission
                sought comment generally on how to support
                [[Page 30872]]
                the anticipated growth of the commercial space launch industry. The
                Commission asked whether providing non-Federal access to this spectrum
                would allow commercial space launch operators to incur lower
                development costs because they would be able to use the same
                communications systems for both Federal and non-Federal launches.
                 76. Several commenters support allocations and service rules that
                promote interoperability between Federal and commercial systems. For
                example, New Mexico Spaceport Authority (NMSA) maintains that
                interoperability between ranges avoids increased costs for development,
                hardware acquisition, operations, and testing; saves on opportunity
                costs; increases competition among launch providers and launch sites;
                and promotes the industry overall.
                 77. The Commission seeks comment on its proposal to model a
                technical framework on rules applicable to Federal launch operations.
                The Commission discusses below, as examples of this approach, certain
                technical requirements set forth in NTIA rules or ITU Radio Regulations
                and seeks comment on whether to apply similar rules to the 2200-2290
                MHz band, as well as the proposed 420-430 MHz, 2025-2110 MHz, and 5650-
                5925 MHz allocations. The Commission seeks comment on other technical
                requirements that apply to Federal space launch operations in the
                relevant bands, such as any requirements regarding frequency tolerance,
                emissions classifications, or emissions levels, the benefits and costs
                of such requirements, whether the Commission should apply these
                requirements to non-Federal operations, and any additional technical
                rules needed to achieve its goals. For example, Table 5.2.1 of the NTIA
                Manual specifies frequency tolerance standards for aeronautical, space,
                and radiolocation stations in the frequencies at issue in this
                proceeding among others. The Commission seeks comment on adopting these
                or alternative frequency tolerance standards.
                 78. 2200-2290 MHz. The 2200-2290 MHz band typically is used, in
                non-Federal space launch operations, for sending telemetry data from
                the launch vehicle to ground controllers. NTIA explains that Federal
                operations in the band primarily consist of tracking, telemetry, and
                control data communications for control of spacecraft. The band is used
                by Federal agencies in space operation, space research and Earth
                exploration-satellite service (space-to-Earth) for communications with
                earth stations and return links via TDRSS (space-to-space), which
                provides links between low earth orbiting spacecraft and earth
                stations. Federal agencies and the military also use this band for
                terrestrial telemetry operations for aircraft, missile flight testing,
                land and maritime mobile communications, and fixed point-to-point
                microwave relay communications.
                 79. As discussed above, the Commission has adopted a Space
                Operation allocation for the 2200-2290 MHz band and is also seeking
                comment on adopting a Mobile allocation in this band. As space launch
                operations in this band may potentially operate under this dual
                regulatory approach, the Commission seeks comment on technical
                requirements under both a space operations and aeronautical mobile
                allocation, including whether these technical rules align with NTIA's
                requirements for both Federal and non-Federal space operations and how
                the Commission might promote consistency between and among the various,
                similarly situated services authorized in the band.
                 80. Emission mask. Under NTIA's space operations requirements,
                earth and space stations in the space operations service above 470 MHz
                must comply with the emissions mask standard established in section
                5.6.2 of the NTIA Manual. Section 5.6.2 provides that for frequencies
                offset from the assigned frequency less than the 50 percent of the
                necessary bandwidth, no attenuation is required. At a frequency offset
                equal to 50 percent of the necessary bandwidth, an attenuation of at
                least 8 dB is required. Frequencies offset more than 50 percent of the
                necessary bandwidth should be attenuated in accordance with a specified
                formula dependent on necessary bandwidth and frequency displaced from
                the center of the emission bandwidth.
                 81. Section 5.3.9 of the NTIA Manual provides that aeronautical
                telemetry operation in the 2200-2290 MHz band must meet the emissions
                limits from Chapter 2 of the Inter-Range Instrumentation Group (IRIG)
                Standard 106-15, Part 1. Chapter 2 of IRIG Standard 106-15, Part 1
                (hereinafter IRIG Standard 106-15), in turn, includes the following
                aeronautical telemetry spectral mask: All spectral components larger
                than -[55 + 10xlog(P)] dBc (i.e., larger than -25 dBm) at the
                transmitter output must be within the spectral mask calculated using
                the following equation:
                M(f) = K + 90 log(R)-100 log [verbar]f-fc[verbar]; [verbar]f-fc[verbar]
                >= R/m
                Where:
                M(f) = power (dBc) at frequency f (MHz)
                K = -20 for analog signals
                K = -28 for binary signals
                K = -61 for FQPSK-B, FQPSK-JR, SOQPSK-TG
                K = -73 for ARTM CPM
                fc = transmitter center frequency (MHz)
                R = bit rate (Mbps) for digital signals or ([Delta]f +fmax)(MHz) for
                analog FM signals
                M = number of states in modulating signal (m = 2 for binary signals,
                m = 4 for quaternary signals and analog signals)
                [Delta]f = peak deviation
                fmax = maximum modulation frequency
                 82. While the Commission seeks to align the technical parameters
                used by Federal and non-Federal operations to facilitate
                interoperability, it also seeks to introduce measures that will help
                licensees to simplify or streamline operations, while ensuring that
                other users in the band are protected. To that end, the Commission
                requests comment on the utility of using one specific mask for all non-
                Federal operations in the band as an alternative to NTIA's dual
                emissions mask approach. For example, the Commission seeks comment on
                applying the space operations emissions mask described above at all
                stages of flight, or whether alternatively the emission limits for
                space stations found in Part 25 should be applied. As another
                alternative, the Commission seeks comment on the use of the emission
                mask described in part 87 of the Commission's rules: (1) On any
                frequency removed from the assigned frequency by more than 50 percent,
                up to and including 100 percent of the authorized bandwidth, at least
                25 decibels attenuation; (2) on any frequency removed from the assigned
                frequency by more than 100 percent, up to and including 250 percent of
                the authorized bandwidth, at least 35 decibels attenuation; and (3) on
                any frequency removed from the assigned frequency by more than 250
                percent of the authorized bandwidth, at least 43 + 10 log(pY) decibels
                or 80 decibels, whichever is the lesser attenuation. The Commission
                seeks comment on these emission masks and whether such masks are
                appropriate notwithstanding our goal of promoting interoperability.
                Alternatively, the Commission seeks comment on whether to follow the
                NTIA approach of applying the aeronautical telemetry and space
                operations emission masks referenced by the NTIA Manual to first-stage
                and subsequent telemetry operations in the band, respectively, or any
                other alternatives.
                 83. Power limits. The RCC's IRIG Standard 106-15 that NTIA applies
                to aeronautical telemetry in the 2200-2290 MHz band provides that the
                EIRP of a transmitter shall not exceed 25 watts and that the output
                power shall not
                [[Page 30873]]
                exceed 25 watts. NTIA's space operations requirements, in contrast, do
                not impose a power limit, and instead rely on a power flux-density
                limit. Consistent with the Federal requirements, the Commission seeks
                comment on whether to limit first-stage operations to an effective
                radiated power of 25 watts and a transmitter output power of up to 25
                watts, and below, the Commission seeks comment on whether to apply a
                power flux-density limit on operations after the first stage.
                Alternatively, if the Commission adopts a power flux-density limit in
                the band, the Commission seeks comment on whether no further limit on
                power is necessary, or whether it should adopt an alternative to the
                power limit in IRIG Standard 106-15.
                 84. Power flux-density limits applicable to second-stage
                operations. The ITU Radio Regulations establish power flux-density
                limits at the surface of the Earth from space research, space operation
                and Earth exploration-satellite services in the 2025-2110 MHz and 2200-
                2290 MHz bands in order to protect the fixed and mobile services in
                those bands. These limits are reflected in section 8.2.36 of the NTIA
                Manual. The Commission seeks comment above on potentially treating
                commercial space operations in the band under both a mobile service and
                space operation service allocation framework. If the Commission adopts
                this approach, what should be the boundary between these regulatory
                frameworks for purposes of applying the ITU power-flux density limits?
                Should the ITU power flux-density limits apply when the launch vehicle
                is above a specified altitude, at a certain time after launch, at a
                particular stage of operation, or based on some other fashion on launch
                operations in the band? For example, the power flux-density limits
                could apply after 15 minutes of flight, or alternatively, could apply
                to either the second or subsequent stage of the launch vehicles
                operation. Would applying the power-flux density limit above a certain
                altitude better accommodate reentry operations as well? To the extent
                NTIA requires space launch operations to meet the PFD limit, at what
                stage of the launch (or at what demarcation point) does NTIA require
                compliance with the limit? Should the Commission adopt a parallel
                requirement in its technical rules? The Commission further seeks
                comment on whether, aside from the interest in harmonization, it should
                impose the power flux-density limit on operations in the 2200-2290 MHz
                band in a reference bandwidth of 1 megahertz instead of 4 kilohertz,
                consistent with Recommendation ITU-R SA.1273.
                 85. 420-430 MHz. As noted, the 420-430 MHz band typically is used
                for sending flight termination commands from ground control to the
                launch vehicle, if necessary, during launch. Non-Federal entities may
                obtain access to this band through STAs. NTIA explains that the band is
                also used by the military and other Federal agencies for a number of
                important radar applications, multi-function position-location
                communications systems, and test range telecommand and flight
                termination systems, making the band essential to national security.
                 86. The Commission recognizes that several commercial space launch
                entities have migrated or are in the process of migrating the flight
                termination signal from transmission of a signal from the ground
                station to launch vehicle to an automated function within the launch
                vehicles via onboard systems (i.e., the flight termination sequence is
                now initiated from onboard the launch vehicle). Moreover, launches to
                date have occurred at Federal ranges, so access to this band by
                commercial launch providers has not been necessary. However, the
                Commission expects this to change as companies transition towards using
                commercial launch sites in the future. Therefore, adopting technical
                rules for commercial flight termination functions in the 420-430 MHz
                band is critical for ensuring the public is protected during space
                launches. To facilitate seamless operation with respect to Federal and
                non-Federal operations, the Commission seeks comment on whether to
                apply the same technical specifications for flight termination used by
                Federal space launches to non-Federal operations. For example, below,
                the Commission seeks comment on applying NTIA rules regarding emission
                mask and power limits.
                 87. Emission mask. NTIA requires land/mobile stations in the 420-
                430 MHz band to meet the standard established in section 5.2.2.2. This
                section requires that the mean power of any emission supplied to the
                antenna transmission line, as compared with the mean power of the
                fundamental, must be in accordance with the following: (a) On any
                frequency removed from the assigned frequency by more than 75 percent,
                up to and including 150 percent, of the authorized bandwidth, at least
                25 decibels attenuation; (b) on any frequency removed from the assigned
                frequency by more than 150 percent, up to and including 300 percent, of
                the authorized bandwidth, at least 35 decibels attenuation; and (c) on
                any frequency removed from the assigned frequency by more than 300
                percent of the authorized bandwidth, two levels of attenuation
                depending on whether the transmitter operates with mean power of (1)
                less than 5 kilowatts or (2) 5 kilowatts or greater.
                 88. To facilitate similar treatment among non-Federal and Federal
                launches, the Commission proposes to apply an emission mask similar to
                section 5.2.2.2 to commercial launch operators using the 420-430 MHz
                band for flight termination purposes. The Commission seeks comment on
                the proposed emission mask. The Commission requests comment on
                alternative limits, and on the need for an emission mask generally for
                the transmission of this singular function.
                 89. Power limits. NTIA permits a maximum power limit of 1 kW of
                transmit power for range safety operations in the 420-450 MHz bands,
                which include flight termination operations such as self-destruct
                commands. Requests for additional power must be coordinated with and
                agreed to by the Commission. Range safety operations at three specific
                locations--Vandenberg AFB, CA; White Sands Missile Range, NM; and Cape
                Canaveral AFS, FL--may be authorized up to 10 kW transmit power without
                Commission coordination.
                 90. The Commission aims to provide flexibility to space launch
                operators using this band, but the Commission recognizes that limits
                are particularly necessary in this band, given that the intended use of
                this band is for safety-of-life applications. Consistent with the NTIA
                requirements, and with NTIA's stated preference for non-Federal launch
                operations in the band, the Commission proposes to permit an effective
                radiated power of up to 1000 watts by non-Federal launch providers. The
                Commission seeks comment on whether the proposed limits are sufficient
                to provide both the flexibility and the protection necessary to this
                safety-of-life application. The Commission also seeks comment on
                whether to consider alternative limits.
                 91. 2025-2110 MHz. The 2025-2110 MHz band supports fixed and mobile
                services on a primary basis for non-Federal terrestrial use. The band
                is allocated to BAS and LTTS for fixed and mobile use and to CARS for
                mobile use only. Federal operations include communications with
                satellites or other space stations, as well as between satellites or
                spacecraft, occurring under primary allocations for space operations
                (Earth-to-space) (space-to-space), space research (Earth-to-space)
                (space-to-space), or Earth exploration-satellite
                [[Page 30874]]
                service (Earth-to-space) (space-to-space). Federal agencies operate
                earth stations in this band for tracking and command of manned and
                unmanned Earth-orbiting satellites and space vehicles either for Earth-
                to-space links for satellites in all types of orbits or through space-
                to-space links using TDRSS. In addition, the National Oceanic and
                Atmospheric Administration (NOAA) operates earth stations in this band
                to control the Geostationary Operational Environmental Satellite (GOES)
                and Polar Operational Environmental Satellite (POES) meteorological
                satellite systems. To facilitate the relocation of military operations
                from the 2155-2180 MHz band, the 2025-2110 MHz band also includes a
                primary Federal allocation for fixed and mobile services, restricted to
                use by the military services and subject to certain provisions codified
                in footnote US92 of the U.S. Table.
                 92. Emission mask. The most analogous authorized Federal operation
                in the 2025-2110 MHz band is earth station telecommand transmissions to
                spacecraft, which operate under space operations rules. As discussed
                above, NTIA requires that earth and space stations in the space
                operations service above 470 MHz comply with the emissions mask
                standards established in section 5.6.2 of the NTIA Manual. Section
                5.6.2 provides that for frequencies offset from the assigned frequency
                less than the 50 percent of the necessary bandwidth, no attenuation is
                required. At a frequency offset equal to 50 percent of the necessary
                bandwidth, an attenuation of at least 8 dB is required. Frequencies
                offset more than 50 percent of the necessary bandwidth should be
                attenuated in accordance with a specified formula dependent on
                necessary bandwidth and frequency displaced from the center of the
                emission bandwidth.
                 93. Consistent with the Commission's general approach, the
                Commission proposes to adopt the NTIA's emissions mask described above
                for commercial space launch transmissions in the 2025-2110 MHz band,
                except that the Commission proposes to apply attenuation requirements
                to the licensee's assigned frequencies rather than requiring a separate
                calculation of necessary bandwidth. The Commission seeks comment on
                this proposal, and on whether the Commission should adopt an
                alternative emissions mask.
                 94. Power limits. NTIA requires that the EIRP transmitted in any
                direction towards the horizon by a Federal earth station in bands
                between 1 GHz and 15 GHz that are shared with stations in the fixed or
                mobile service, which includes the 2025-2110 MHz band, shall not (with
                limited exceptions) exceed the following limits:
                 +40 dBW in any 4 kHz band for u +40+3u dBW in any 4 kHz band for 0[deg] http://apps.fcc.gov/ecfs//.
                 Paper Filers: Parties who choose to file by paper must
                file an original and one copy of each filing.
                 Filings can be sent by commercial overnight courier, or by
                first-class or overnight U.S. Postal Service mail. All filings must be
                addressed to the Commission's Secretary, Office of the Secretary,
                Federal Communications Commission.
                 Commercial overnight mail (other than U.S. Postal Service
                Express Mail and Priority Mail) must be sent to 9050 Junction Drive,
                Annapolis Junction, MD 20701.
                 U.S. Postal Service first-class, Express, and Priority
                mail must be addressed to 45 L Street NE, Washington, DC 20554.
                 Effective March 19, 2020, and until further notice, the
                Commission no longer accepts any hand or messenger delivered filings.
                This is a temporary measure taken to help protect the health and safety
                of individuals, and to mitigate the transmission of COVID-19.
                [[Page 30879]]
                See FCC Announces Closure of FCC Headquarters Open Window and Change in
                Hand-Delivery Policy, Public Notice, DA 20-304 (March 19, 2020),
                https://www.fcc.gov/document/fcc-closes-headquarters-open-window-and-changes-hand-delivery-policy.
                 During the time the Commission's building is closed to the
                general public and until further notice, if more than one docket or
                rulemaking number appears in the caption of a proceeding, paper filers
                need not submit two additional copies for each additional docket or
                rulemaking number; an original and one copy are sufficient.
                 After COVID-19 restrictions are lifted, the Commission has
                established that hand-carried documents are to be filed at the
                Commission's office located at 9050 Junction Drive, Annapolis Junction,
                MD 20701. This will be the only location where hand-carried paper
                filings for the Commission will be accepted.
                 125. People with Disabilities. To request materials in accessible
                formats for people with disabilities (braille, large print, electronic
                files, audio format), send an email to [email protected] or call the
                Consumer & Governmental Affairs Bureau at 202-418-0530 (voice), 202-
                418-0432 (tty).
                 126. Initial Regulatory Flexibility Analysis. As required by the
                Regulatory Flexibility Act, the Commission has prepared an Initial
                Regulatory Flexibility Analysis (IRFA) of the possible significant
                economic impact on a substantial number of small entities of the
                proposals addressed in this Notice of Proposed Rulemaking. The IRFA is
                set forth in Appendix E of this Further Notice of Proposed Rulemaking.
                Written public comments are requested on the IRFA. These comments must
                be filed in accordance with the same filing deadlines for comments on
                the Further Notice of Proposed Rulemaking, and should have a separate
                and distinct heading designating them as responses to the IRFA. The
                Commission's Consumer and Governmental Affairs Bureau, Reference
                Information Center, will send a copy of this Further Notice of Proposed
                Rulemaking, including the IRFA, to the Chief Counsel for Advocacy of
                the Small Business Administration in accordance with the Regulatory
                Flexibility Act.
                 127. Paperwork Reduction Act Analysis. This Further Notice of
                Proposed Rulemaking contains proposed modified information collection
                requirements. The Commission, as part of its continuing effort to
                reduce paperwork burdens, invites the general public and the Office of
                Management and Budget to comment on the information collection
                requirements contained in this document, as required by the Paperwork
                Reduction Act of 1995, Public Law 104-13. In addition, pursuant to the
                Small Business Paperwork Relief Act of 2002, Public Law 107-198, see 44
                U.S.C. 3506(c)(4)), the Commission seeks specific comment on how it
                might further reduce the information collection burden for small
                business concerns with fewer than 25 employees.
                Ordering Clauses
                 128. Accordingly, It is ordered that, pursuant to sections 1, 2,
                4(i), 5(c), 301, 303(c), 303(f), and 303(r) of the Communications Act
                of 1934, as amended, 47 U.S.C. 151, 152, 154(i), 155(c), 301, 303(c),
                303(f), and 303(r), and Sec. 1.411 of the Commission's rules, 47 CFR
                1.411, this Report and Order and Further Notice of Proposed Rulemaking
                is hereby adopted.
                 129. It is further ordered that the amendments of part 2 of the
                Commission's rules, as set forth in Appendix A of the Report and Order
                and Further Notice of Proposed Rulemaking, are adopted, effective
                thirty (30) days after publication in the Federal Register.
                 130. It is further ordered that the Commission's Consumer and
                Governmental Affairs Bureau, Reference Information Center, shall send a
                copy of this Report and Order and Further Notice of Proposed
                Rulemaking, including the Final and Initial Regulatory Flexibility
                Analyses, to the Chief Counsel for Advocacy of the Small Business
                Administration.
                 131. It is further ordered that the Commission shall send a copy of
                this Report and Order in a report to be sent to Congress and the
                Government Accountability Office pursuant to the Congressional Review
                Act, see 5 U.S.C. 801(a)(1)(A).
                Federal Communications Commission.
                Marlene Dortch,
                Secretary.
                List of Subjects
                47 CFR Part 2
                 Communications equipment, Radio, Telecommunications.
                47 CFR Part 87
                 Communications equipment, Radio.
                47 CFR Part 90
                 Communications equipment, Radio, Telecommunications.
                Proposed Rules
                 For the reasons discussed in the preamble, the Federal
                Communications Commission proposes to amend 47 CFR parts 2, 87, and 90
                as follows:
                PART 2--FREQUENCY ALLOCATIONS AND RADIO TREATY MATTERS; GENERAL
                RULES AND REGULATIONS
                0
                1. The authority citation for part 2 continues to read as follows:
                 Authority: 47 U.S.C. 154, 302a, 303, and 336, unless otherwise
                noted.
                0
                2. Section 2.106, the Table of Frequency Allocations, is amended by:
                0
                a. Revising pages 26, 28, 36, 37, 43, and 44; and
                0
                b. In the list of United States (US) Footnotes:
                0
                i. Adding footnote US68;
                0
                ii. Revising footnote US96;
                0
                iii. Adding footnote US121; and
                0
                iv. Revising footnote US319.
                 The revisions and additions read as follows:
                Sec. 2.106 Table of Frequency Allocations.
                * * * * *
                BILLING CODE 6712-01-P
                [[Page 30880]]
                [GRAPHIC] [TIFF OMITTED] TP10JN21.000
                * * * * *
                [[Page 30881]]
                [GRAPHIC] [TIFF OMITTED] TP10JN21.001
                * * * * *
                [[Page 30882]]
                [GRAPHIC] [TIFF OMITTED] TP10JN21.002
                [[Page 30883]]
                [GRAPHIC] [TIFF OMITTED] TP10JN21.003
                * * * * *
                [[Page 30884]]
                [GRAPHIC] [TIFF OMITTED] TP10JN21.004
                [[Page 30885]]
                [GRAPHIC] [TIFF OMITTED] TP10JN21.005
                [[Page 30886]]
                BILLING CODE 6712-01-C
                * * * * *
                United States (US) Footnotes
                * * * * *
                 US68 The band 420-430 MHz is allocated to the aeronautical mobile
                service on a primary basis for non-Federal use. Non-Federal stations in
                the aeronautical mobile service shall be:
                 (a) Restricted to use for pre-launch testing of launch vehicles and
                sending flight termination signals to launch vehicles during launches;
                and
                 (b) Subject to coordination with NTIA prior to each launch.
                * * * * *
                 US96 The band 2200-2290 MHz is allocated to the space operation
                (space-to-Earth) and the mobile services on a secondary basis for non-
                Federal use. Non-Federal stations in the space operation and mobile
                services shall be:
                 (a) Restricted to use for pre-launch testing and space launch
                operations except as provided under US303; and
                 (b) Subject to coordination with NTIA prior to each launch.
                * * * * *
                 US121 The band 5650-5925 MHz is allocated to the radiolocation
                service on a primary basis for non-Federal use. Non-Federal stations in
                the radiolocation service shall be:
                 (a) Restricted to use for pre-launch testing and tracking launch
                vehicles; and
                 (b) Subject to coordination with NTIA prior to each launch.
                * * * * *
                 US319 In the bands 137-138 MHz, 148-149.9 MHz, 149.9-150.05 MHz,
                400.15-401 MHz, 1610-1626.5 MHz, and 2483.5-2500 MHz, Federal stations
                in the mobile-satellite service shall be limited to earth stations
                operating with non-Federal space stations.
                * * * * *
                PART 87--AVIATION SERVICES
                0
                3. The authority citation for part 87 continues to read as follows:
                 Authority: 47 U.S.C. 154, 303 and 307(e), unless otherwise
                noted.
                0
                4. Add subpart U, consisting of Sec. Sec. 87.601 through 87.606, to
                read as follows:
                Subpart U--Commercial Space Launch Stations
                Sec.
                87.601 Scope of service.
                87.602 Supplemental eligibility.
                87.603 Frequencies.
                Technical Regulations Governing the Use of 420-430 MHz, 2025-2110 MHz,
                and 2200-2290 MHz Bands
                87.604 Frequency coordination.
                87.605 Emission masks.
                87.606 Power limits.
                Subpart U--Commercial Space Launch Stations
                Sec. 87.601 Scope of service.
                 Commercial space launch stations are restricted to the following
                uses:
                 (a) 420-430 MHz band. The use of commercial space launch licenses
                in the 420-430 MHz band is restricted to the transmission of flight
                termination signals during pre-launch testing and launch operations.
                 (b) 2025-2110 MHz band. The use of commercial space launch licenses
                in the 2025-2110 MHz band is restricted to telecommand uplink
                transmissions from the controllers on the ground to the launch vehicle.
                 (c) 2200-2290 MHz band. The use of commercial space launch licenses
                in the 2200-2290 MHz band is restricted to the transmission of
                telemetry data from the launch vehicle to controllers on the ground.
                Sec. 87.602 Supplemental eligibility.
                 (a) The following entities are eligible for commercial space launch
                licenses:
                 (1) An operator or manufacturer of commercial spacecraft or
                spacecraft components;
                 (2) A parent corporation or its subsidiary if either corporation is
                an operator or manufacturer of spacecraft or spacecraft components; or
                 (3) An educational institution or a person primarily engaged in the
                design, development, modification, and flight test evaluation of
                spacecraft or spacecraft components.
                 (b) Each application must include a certification sufficient to
                establish the applicant's eligibility under the criteria in paragraph
                (a) of this section.
                Sec. 87.603 Frequencies.
                 Commercial space launch operations are conducted in the 420-430
                MHz, 2025-2110 MHz, and 2200-2290 MHz bands on a co-equal basis with
                U.S. Government stations. Frequencies in the 420-430 MHz, 2025-2110
                MHz, and 2200-2290 MHz bands are assigned for telemetry and telecommand
                operations of expendable and re-usable launch vehicles:
                 (a) 420-430 MHz. Frequencies in the 420-430 MHz band are assigned
                on a shared basis for the transmission of flight termination signals
                during pre-launch testing and launch operations.
                 (b) 2025-2110 MHz. Frequencies in the 2025-2110 MHz band are
                assigned on a shared basis for telecommand uplink transmissions from
                the controllers on the ground to the launch vehicle.
                 (c) 2200-2290 MHz. Frequencies in the 2200-2290 MHz band are
                assigned on a shared basis for the transmission of telemetry data from
                the launch vehicle to controllers on the ground.
                Technical Regulations Governing the Use of 420-430 MHz, 2025-2110 MHz,
                and 2200-2290 MHz Bands
                Sec. 87.604 Frequency coordination.
                 (a)(1) Each application for a new station license, renewal, or
                modification of an existing license concerning commercial space launch
                frequencies, except as provided in paragraph (b) of this section, must
                be accompanied by a statement from a frequency advisory committee. The
                committee must comment on the frequencies requested or the proposed
                changes in the authorized station and the probable interference to
                existing stations. The committee must consider all stations operating
                on the frequencies requested or assigned within 320 km (200 mi) of the
                proposed area of operation and all prior coordinations and assignments
                on the proposed frequency(ies). The committee must also recommend
                frequencies resulting in the minimum interference. The committee must
                coordinate in writing all requests for frequencies or proposed
                operating changes with the responsible Government Area Frequency
                Coordinators listed in the NTIA ``Manual of Regulations and Procedures
                for Federal Radio Frequency Management.'' In addition, committee
                recommendations may include comments on other technical factors and may
                contain recommended restrictions which it believes should appear on the
                license.
                 (2) The frequency advisory committee must be organized to represent
                all persons who are eligible for non-Government space launch stations.
                A statement of the organization service area and composition of the
                committee must be submitted to the Commission for approval. The
                functions of any advisory committee are purely advisory to the
                applicant and the Commission, and its recommendations are not binding
                upon either the applicant or the Commission.
                 (b) These applications need not be accompanied by evidence of
                frequency coordination:
                 (1) Any application for modification not involving change in
                frequency(ies), power, emission, antenna height, antenna location, or
                area of operation.
                 (2) [Reserved]
                Sec. 87.605 Emission masks.
                 (a) 420-430 MHz. The mean power of any emission supplied to the
                antenna
                [[Page 30887]]
                transmission line, as compared with the mean power of the fundamental,
                in the 420-430 MHz band of the Commercial Space Launch Service must be
                in accordance with the following:
                 (1) On any frequency removed from the assigned frequency by more
                than 75 percent, up to and including 150 percent, of the authorized
                bandwidth, at least 25 decibels attenuation;
                 (2) On any frequency removed from the assigned frequency by more
                than 150 percent, up to and including 300 percent, of the authorized
                bandwidth, at least 35 decibels attenuation; and
                 (3) On any frequency removed from the assigned frequency by more
                than 300 percent of the authorized bandwidth, two levels of attenuation
                depending on whether the transmitter operates with mean power of:
                 (i) Less than 5 kilowatts; or
                 (ii) 5 kilowatts or greater.
                 (b) 2025-2110 MHz. For frequencies offset from the assigned
                frequency less than the 50 percent of the necessary bandwidth, no
                attenuation is required. At a frequency offset equal to 50 percent of
                the necessary bandwidth, an attenuation of at least 8 dB is required.
                Frequencies offset more than 50 percent of the necessary bandwidth
                shall be attenuated in accordance with a specified formula dependent on
                necessary bandwidth and frequency displaced from the center of the
                emission bandwidth.
                 (c) 2200-2290 MHz. All spectral components larger than -[55 +
                10xlog(P)] dBc (i.e., larger than -25 dBm) at the transmitter output
                must be within the spectral mask calculated using the following
                equation:
                M(f) = K + 90 log(R)-100 log [verbar]f-fc[verbar] Eqn. A-9
                where
                M(f) = power (dBc) at frequency f (MHz)
                K = -20 for analog signals
                K = -28 for binary signals
                K = -61 for FQPSK-B, FQPSK-JR, SOQPSK-TG
                K = -73 for ARTM CPM
                fc = transmitter center frequency (MHz)
                R = bit rate (Mbps) for digital signals or ([Delta]f +fmax)(MHz) for
                analog FM signals
                M = number of states in modulating signal (m = 2 for binary signals,
                m = 4 for quaternary signals and analog signals)
                f = peak deviation
                fmax = maximum modulation frequency
                Sec. 87.606 Power limits.
                 (a) 420-430 MHz. The effective radiated power of a transmitter in
                the 420-430 MHz band of the Space Operation Service shall not exceed
                1000 Watts.
                 (b) 2025-2110 MHz. The effective radiated power of a transmitter in
                the 2025-2110 MHz band of the Space Operation Service shall not (with
                limited exceptions) exceed the following limits:
                 (i) +40 dBW in any 4 kHz band for u 

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