Goto Section: 27.72 | 27.75 | Table of Contents

FCC 27.73
Revised as of October 1, 2014
Goto Year:2013 | 2015
§ 27.73   WCS, AMT, and Goldstone coordination requirements.

   This section requires Wireless Communications Services (WCS) licensees
   in the 2305-2320 MHz and 2345-2360 MHz bands, respectively, to
   coordinate the deployment of base and fixed stations (except fixed
   customer premises equipment) with the Goldstone, CA Deep Space Network
   (DSN) facility in the 2290-2300 MHz band and with Aeronautical Mobile
   Telemetry (AMT) facilities in the 2360-2395 MHz band; and to take all
   practicable steps necessary to minimize the risk of harmful
   interference to AMT and DSN facilities.

   (a) WCS licensees operating base and fixed stations in the 2345-2360
   MHz band must, prior to operation of such stations, achieve a mutually
   satisfactory coordination agreement with the AMT entity(ies) (i.e., FCC
   licensee(s) and/or Federal operator(s)) for any AMT receiver facility
   within 45 kilometers or radio line of sight, whichever distance is
   larger, of the intended WCS base or fixed station location. The
   coordinator for the assignment of flight test frequencies in the
   2360-2390 MHz band, Aerospace and Flight Test Radio Coordination
   Council (AFTRCC) or successors of AFTRCC, will facilitate a mutually
   satisfactory coordination agreement between the WCS licensee(s) and AMT
   entity(ies) for existing AMT receiver sites. The locations of current
   Federal and non-Federal AMT receiver sites may be obtained from AFTRCC
   at Post Office Box 12822 Wichita, KS 67277-2822, (316) 946-8826, or
   successor frequency coordinators of AFTRCC. Such coordination agreement
   shall provide protection to existing AMT receiver stations consistent
   with International Telecommunication Union (ITU) Recommendation ITU-R
   M.1459, "Protection criteria for telemetry systems in the aeronautical
   mobile service and mitigation techniques to facilitate sharing with
   geostationary broadcasting-satellite and mobile-satellite services in
   the frequency bands 1 452-1 525 MHz and 2 310-2 360 MHz May 2000
   edition," adopted May 2000, as adjusted using generally accepted
   engineering practices and standards to take into account the local
   conditions and operating characteristics of the applicable AMT and WCS
   facilities. This ITU document is incorporated by reference in
   accordance with 5 U.S.C. 552(a) and 1 CFR part 51 and approved by the
   Director of Federal Register. Copies of the recommendation may be
   obtained from ITU, Place des Nations, 1211 Geneva 20, Switzerland, or
   online at You
   may inspect a copy at the Federal Communications Commission, 445 12th
   Street SW., Washington, DC 20554, or at the National Archives and
   Records Administration (NARA). For information on the availability of
   this material at NARA, call 202-741-6030, or go to:

   (b) WCS licensees operating base and fixed stations in the 2305-2320
   MHz band must, prior to operation of such stations, achieve a mutually
   satisfactory coordination agreement with the National Aeronautics and
   Space Administration (NASA) within 145 kilometers of the Goldstone, CA
   earth station site (35DEG25'33'' N, 116DEG53'23'' W).

   (c) After base or fixed station operations commence, upon receipt of a
   complaint of harmful interference, the WCS licensee(s) receiving the
   complaint, no matter the distance from the NASA Goldstone, CA earth
   station or from an AMT site, operating in the 2305-2320 or 2345-2360
   MHz bands, respectively, shall take all practicable steps to
   immediately eliminate the interference.

   (d) Duty to cooperate. WCS licensees, AFTRCC, and NASA must cooperate
   in good faith in the coordination and deployment of new facilities. WCS
   licensees must also cooperate in good faith in the selection and use of
   new station sites and new frequencies when within radio line of site of
   AMT receiver facilities to reduce the risk of harmful interference and
   make the most effective use of the authorized facilities. Licensees of
   stations suffering or causing harmful interference must cooperate in
   good faith and resolve such problems by mutually satisfactory
   arrangements. If the licensees are unable to do so, the Wireless
   Telecommunications Bureau, in consultation with the Office of
   Engineering and Technology and the National Telecommunications and
   Information Administration may impose restrictions including specifying
   the transmitter power, antenna height, or area or hours of operation of
   the stations.

   [ 75 FR 45072 , Aug. 2, 2010, as amended at  78 FR 9622 , Feb. 11, 2013]

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Goto Section: 27.72 | 27.75

Goto Year: 2013 | 2015
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