§ 27.1134   Protection of Federal Government operations.

   (a) Protection of Department of Defense operations in the 1710-1755 MHz
   band. The Department of Defense (DoD) operates communications systems in the
   1710-1755 MHz band at 16 protected facilities, nationwide. AWS licensees
   must accept any interference received from these facilities and must protect
   the facilities from interference. AWS licensees shall protect the facilities
   from interference by restricting the operation of their base and fixed
   stations from any locations that could potentially permit AWS mobile, fixed,
   and  portable stations transmitting in the 1710-1755 MHz band to cause
   interference to government operations within the radii of operation of the
   16 facilities (the radii of operation of each facility is indicated in the
   third column of Table 1 immediately following paragraph (a)(3) of this
   section). In addition, AWS licensees shall be required to coordinate any
   operations that could permit mobile, fixed, and portable stations to operate
   in the specified areas of the 16 facilities, as defined in paragraph (a)(3)
   of this section. Protection of these facilities in this manner shall take
   place under the following conditions:

   (1) At the Yuma, Arizona and Cherry Point, North Carolina facilities, all
   operations shall be protected indefinitely.

   (2)  At  the remaining 14 facilities, airborne and military test range
   operations shall be protected until such time as these systems are relocated
   to other spectrum, and precision guided munitions (PGM) operations shall be
   protected until such time as these systems are relocated to other spectrum
   or until PGM inventory at each facility is exhausted, whichever occurs
   first.

   (3)  AWS licensees whose transmit operations in the 1710-1755 MHz band
   consist of fixed or mobile operations with nominal transmit EIRP values of
   100 mW or less and antenna heights of 1.6 meters above ground or less shall
   coordinate their services around the 16 sites at the distance specified in
   row a. of Table 2. AWS licensees whose transmit operations in the 1710-1755
   MHz band consist of fixed or mobile operations with nominal transmit EIRP
   values of 1 W or less and antenna heights of 10 meters above ground or less
   shall  coordinate  their  services around the 16 sites at the distance
   specified  in row b. of Table 2. These coordination distances shall be
   measured from the edge of the operational distances indicated in the third
   column of Table 1, and coordination with each affected DoD facility shall be
   accomplished through the Commander of the facility.

   Table 1—Protected Department of Defense Facilities
   Location Coordinates Radius of
   operation
   (km)
   Cherry Point, NC 34�°58′ N, 076�°56′ W 100
   Yuma, AZ 32�°32′ N, 113�°58′ W 120
   China Lake, CA 35�°41′ N, 117�°41′ W 120
   Eglin AFB, FL 30�°29′ N, 086�°31′ W 120
   Pacific Missile Test Range/Point Mugu, CA 34�°07′ N, 119�°30′ W 80
   Nellis AFB, NV 36�°14′ N, 115�°02′ W 160
   Hill AFB, UT 41�°07′ N, 111�°58′ W 160
   Patuxent River, MD 38�°17′ N, 076�°25′ W 80
   White Sands Missile Range, NM 33�°00′ N, 106�°30′ W 80
   Fort Irwin, CA 35�°16′ N, 116�°41′ W 50
   Fort Rucker, AL 31�°13′ N, 085�°49′ W 50
   Fort Bragg, NC 35�°09′ N, 079�°01′ W 50
   Fort Campbell, KY 36�°41′ N, 087�°28′ W 50
   Fort Lewis, WA 47�°05′ N, 122�°36′ W 50
   Fort Benning, GA 32�°22′ N, 084�°56′ W 50
   Fort Stewart, GA 31�°52′ N, 081�°37′ W 50

   Table 2—Coordination Distances for the Protected Department Of Defense
   Facilities
   1710-1755 MHz transmit operations Coordination
   distance
   (km)
   a. EIRP < = 100 mW, antenna height < = 1.6 m AG 35
   b. EIRP < = 1 W, antenna height < = 10 m AG 55

   (b) Protection of non-DoD operations in the 1710-1755 MHz and 1755-1761 MHz
   bands. Until such time as non-DoD systems operating in the 1710-1755 MHz and
   1755-1761 MHz bands are relocated to other spectrum, AWS licensees shall
   protect  such  systems by satisfying the appropriate provisions of TIA
   Telecommunications  Systems  Bulletin 10-F, “Interference Criteria for
   Microwave Systems,” May, 1994 (TSB 10-F).

   (c)  Protection of Federal operations in the 1675-1710 MHz band—(1) 27
   Protection Zones. Within 27 Protection Zones, prior to operating a base
   station  that  enables  mobile or portable stations to transmit in the
   1695-1710 MHz band, licensees must successfully coordinate such base station
   operations  with  Federal Government entities operating meteorological
   satellite Earth-station receivers in the 1675-1710 MHz band. See 47 CFR
   2.106, footnote US 88, for the 27 Protection Zones and other details.

   (2) Operation outside of 27 Protection Zones. Non-Federal operations, for
   mobile and portable stations operating at a maximum EIRP of 20 dBm, are
   permitted  outside  of  the protection zones without coordination. All
   non-Federal operations for mobile and portables operating at a maximum EIRP
   of greater than 20 dBm and up to 30 dBm must be coordinated nationwide. All
   such operations may not cause harmful interference to the Federal operations
   protected in 47 CFR 2.106, footnote US 88.

   (3)  Interference.  If  protected  Federal  operations receive harmful
   interference from AWS operations in the 1695-1710 MHz band, an AWS licensee
   must, upon notification, modify its operations and/or technical parameters
   as necessary to eliminate the interference.

   (4) Point of contact. AWS licensees in the 1695-1710 MHz band must provide
   and maintain a point of contact at all times so that immediate contact can
   be made should interference against protected Federal sites occur.

   (5) Coordination procedures. Federal use of the radio spectrum is generally
   governed by the National Telecommunications and Information Administration
   (NTIA) while non-Federal use is governed by the Commission. As such, any
   guidance or details concerning Federal/non-Federal coordination must be
   issued jointly by NTIA and the Commission. The Commission may jointly issue
   with NTIA one or more public notices with guidance or details concerning the
   coordination procedures for the 1695-1710 MHz band.

   (6) Requirements for licensees operating in the 1710-1755 MHz band. AWS
   licensees operating fixed stations in the 1710-1755 MHz band, if notified
   that  such  stations  are causing interference to radiosonde receivers
   operating in the Meteorological Aids Service in the 1675-1700 MHz band or a
   meteorological-satellite    earth    receiver    operating    in   the
   Meteorological-Satellite  Service  in the 1675-1710 MHz band, shall be
   required to modify the stations' location and/or technical parameters as
   necessary to eliminate the interference.

   (d) Recognition of NASA Goldstone facility operations in the 2110-2120 MHz
   band. The National Aeronautics and Space Administration (NASA) operates the
   Deep Space Network (DSN) in the 2110-2120 MHz band at Goldstone, California
   (see Table 3). NASA will continue its operations of high power transmitters
   (nominal EIRP of 105.5 dBW with EIRP up to 119.5 dBW used under emergency
   conditions) in this band at this location. AWS licensees must accept any
   interference received from the Goldstone DSN facility in this band.

   Table 3—Location of the NASA Goldstone Deep Space Facility
   Location Coordinates Maximum
   transmitter
   output power
   Goldstone, California 35�°18′ N 116�°54′ W 500 kW

   (e) Protection of Federal operations in the 2200-2290 MHz band—(1) Default
   emission limits. Except as provided in paragraph (e)(2) of this section, the
   following  default  out-of-band emissions limits shall apply for AWS-4
   operations in the 2180-2200 MHz band.

   (i)  For  these  AWS-4  operations,  the power of any emissions on all
   frequencies between 2200 and 2290 MHz shall not exceed an EIRP of −100.6
   dBW/4 kHz.

   (ii) No AWS-4 base station operating in the 2180-2200 MHz band shall be
   located less than 820 meters from a U.S. Earth Station facility operating in
   the 2200-2290 MHz band.

   (2) Agreements between AWS-4 operators and Federal government entities. The
   out-of-band emissions limits in paragraph (e)(1) of this section may be
   modified  by  the  private contractual agreement of licensees of AWS-4
   operating  authority  and Federal government entities operating in the
   2200-2290 MHz band. Such agreement shall be transmitted to the Commission by
   the National Telecommunications and Information Administration (NTIA) of the
   U.S. Department of Commerce. A licensee of AWS-4 operating authority who is
   a party to such an agreement must maintain a copy of the agreement in its
   station files and disclose it, upon request, to prospective AWS-4 assignees,
   transferees,  or  spectrum  lessees,  to Federal operators, and to the
   Commission.

   (f) Protection of Federal operations in the 1755-1780 MHz band. The Federal
   Government  operates communications systems in the 1755-1780 MHz band.
   Certain  systems  are  expected  to  continue  to  operate in the band
   indefinitely. All other operations will be relocating to other frequencies
   or otherwise cease operations in the 1755-1780 MHz band in accordance with
   47 CFR part 301. Until such a time as Federal operations in the 1755-1780
   MHz bands vacate this spectrum, AWS licensees shall protect such systems and
   must accept any interference received from these Federal operations. See 47
   CFR 2.106, footnote US 91, for details. AWS licensees must successfully
   coordinate  proposed  operations  with all Federal incumbents prior to
   operation as follows:

   (1) Protection Zone(s). A protection zone is established for each Federal
   operation  pursuant  to 47 CFR 2.106, footnote US 91. Unless otherwise
   specified  in later Commission actions, the default protection zone is
   nationwide. A base station which enables mobile or portable stations to
   transmit in the 1755-1780 MHz band may not operate within the Protection
   Zone(s) of a Federal operation until the licensee successfully coordinates
   such base station operations with Federal Government entities as follows
   depending on the type of Federal incumbent authorization:

   (i) Federal US&P Assignments. Each AWS licensee must coordinate with each
   Federal agency that has U.S. and Possessions (US&P) authority prior to its
   first operations in its licensed area to reach a coordination arrangement
   with each US&P agency on an operator-to-operator basis. (Agencies with U.S.
   and Possessions (US&P) authority do not operate nationwide and may be able
   to share, prior to relocation, in some areas.)

   (ii)  Other  Federal  Assignments. Each AWS licensee must successfully
   coordinate all base station operations within a Protection Zone with the
   Federal incumbents. The default requirement is a nationwide coordination
   zone with possible revisions to the Protection Zone and other details to be
   announced in a Joint FCC/NTIA public notice.

   (2)  Interference.  If  protected  Federal  operations receive harmful
   interference from AWS operations in the 1755-1780 MHz band, an AWS licensee
   must, upon notification, modify its operations and/or technical parameters
   as necessary to eliminate the interference.

   (3) Point of contact. AWS licensees in the 1755-1780 MHz band must provide
   and maintain a point of contact at all times so that immediate contact can
   be made should interference against protected Federal operations occur.

   (4) Coordination procedures. Federal use of the radio spectrum is generally
   governed by the National Telecommunications and Information Administration
   (NTIA) while non-Federal use is governed by the Commission. As such, any
   guidance or details concerning Federal/non-Federal coordination must be
   issued jointly by NTIA and the Commission. The Commission may jointly issue
   with NTIA one or more public notices with guidance or details concerning the
   coordination procedures for the 1755-1780 MHz band.

   [ 69 FR 5716 , Feb. 6, 2004, as amended at  73 FR 50571 , Aug. 27, 2008;  78 FR 8270 , Jan. 5, 2013;  79 FR 32414 , June 4, 2014]

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