Goto Section: 87.261 | 87.265 | Table of Contents

FCC 87.263
Revised as of October 1, 2005
Goto Year:2004 | 2006
Sec.  87.263   Frequencies.

   (a) Domestic VHF service. (1) Frequencies in the 128.8125–132.125 MHz and
   136.4875–137.00 MHz bands are available to serve domestic routes, except
   that the frequency 136.750 MHz is available only to aeronautical enroute
   stations located at least 288 kilometers (180 miles) from the Gulf of Mexico
   shoreline (outside the Gulf of Mexico region). The frequencies 136.900 MHz,
   136.925 MHz, 136.950 MHz and 136.975 MHz are available to serve domestic and
   international routes. Frequency assignments are based on 25 kHz spacing. Use
   of these frequencies must be compatible with existing operations and must be
   in accordance with pertinent international treaties and agreements.

   (2) A system or network of interconnected enroute stations may employ offset
   carrier techniques on the frequencies listed in paragraph (a)(1). The
   carrier frequencies of the individual transmitters must not be offset by
   more than  ±8kHz.

   (3) The frequencies 122.825 and 122.875 MHz are available for assignment to
   enroute stations which provide local area service to aircraft approaching or
   departing a particular airport. These frequencies will be assigned without
   regard to the restrictions contained in  Sec. 87.261 (c) and (d). Only
   organizations operating aircraft with a maximum capacity of 56 passengers or
   8,200 kg (18,000 lbs) cargo will be authorized use of these enroute
   frequencies.

   (4) In Alaska, the frequencies 131.500, 131.600, 131.800 and 131.900 MHz may
   be assigned to aeronautical enroute stations without regard to the
   restrictions contained in  Sec. 87.261 (c) and (d).

   (5) The frequency 136.750 MHz is available in the Gulf of Mexico Region to
   serve domestic routes over the Gulf of Mexico and adjacent coastal areas.
   Assignment of this frequency in the Gulf of Mexico Region shall be to
   licensees first licensed on this frequency in the Gulf of Mexico Region
   prior to January 1, 1994, their successors and assigns, and is not subject
   to the conditions in  Sec. 87.261(c) and paragraph (a)(2) of this section. For
   the purpose of this paragraph, the Gulf of Mexico Region is defined as an
   area bounded on the east, north, and west by a line 288 km (180 miles) from
   the Gulf of Mexico shore line. Inland stations must be located within
   forty-eight kilometers (30 miles) of the Gulf of Mexico shore line.

   (b) Domestic HF service. (1) Regular use of high frequencies for
   aeronautical enroute or any aeronautical mobile (R) communications in the
   domestic service within the continental United States (excluding Alaska)
   will not be authorized.

   (2) These frequencies (carrier) are available for assignment to serve
   aircraft operating in support of offshore drilling operations in open sea
   areas beyond the range of VHF propagation:

   kHz
   2878.0
   3019.0
   3434.0
   4672.0
   5463.0
   5508.0

   (3) Alaska: The following frequencies (carrier) are available for assignment
   to serve domestic air routes in the Alaska area:

   (i) Throughout Alaska: Shared with the FAA and assigned where an applicant
   shows the need for a service not provided by the FAA.

                                   kHz



  2866.0           5631.0


   (ii) Alaska Aleutian chain and feeders.

                                   kHz



  2911.0           8855.0
  2956.0           10066.0
  5496.0           11363.0
  6580.0


   (iii) Central and Southeast Alaska and feeders.

                                   kHz



  2875.0           6580.0
  2911.0           6604.0
  3470.0           8876.0
  5484.0           11357.0


   (iv) The following frequencies (carrier) are available to enroute stations
   in Alaska without regard to the restrictions contained in  Sec. 87.261 (c) or
   (d). These frequencies may also be used for communications between enroute
   stations concerning matters directly affecting aircraft with which they are
   engaged. Enroute stations located at an uncontrolled airport shall not
   transmit information concerning runway, wind or weather conditions during
   the operating hours of a unicom.

                                   kHz



  3449.0           5472.0
5167.5 \1\         5490.0

\1\ The frequency 5167.5 kHz is available to any station for emergency
  communications in Alaska. No airborne operations are permitted. Peak
  envelope power of stations operating on this frequency must not exceed
  150 watts. This frequency may also be used by Alaska private fixed
  stations for calling purposes, but only for establishing
  communications.

   (c) International VHF service. Frequencies in the 128.825–132.000 and
   136.000–137.000 MHz bands are available to enroute stations serving
   international flight operations. Frequency assignments are based on 25 kHz
   channel spacing. Proposed operations must be compatible with existing
   operations in the band.

   (d) International HF service. High frequencies (carrier) available to
   enroute stations serving international flight operations on the Major World
   Air Route Areas (MWARA's), as defined in the international Radio Regulations
   and the ICAO Assignment Plan, are:

   (1) Central East Pacific (CEP):

                                   kHz



  2869.0           8843.0
  3413.0           10057.0
  4657.0           11282.0
  5547.0           13300.0
  5574.0           17904.0
  6673.0


   (2) Central West Pacific (CWP):

                                   kHz



  2998.0           6562.0
  3455.0           8903.0
  4666.0           10081.0
  5652.0           11384.0
  5661.0           13300.0
  6532.0           17904.0


   (3) North Pacific (NP):

                                   kHz



  2932.0           10048.0
  5628.0           11330.0
  6655.0           13300.0
  6661.0           17904.0


   (4) South Pacific (SP):

                                   kHz



  3467.0           10084.0
  5559.0           11327.0
  5643.0           13300.0
  8867.0           17904.0


   (5) North Atlantic (NAT):

                                   kHz



  2872.0           8825.0
  2899.0           8831.0
  2962.0           8864.0
  2971.0           8879.0
  3016.0           8891.0
  3476.0           8906.0
  4675.0           11279.0
  5598.0           11309.0
  5616.0           11336.0
  5649.0           13291.0
  6622.0           13306.0
  6628.0           17946.0


   (6) Europe (EUR):

                                   kHz



  3479.0           10084.0
  5661.0           13288.0
  6598.0           17961.0


   (7) South America (SAM):

                                   kHz



  2944.0           10024.0
  3479.0           10096.0
  4669.0           11360.0
  5526.0           13297.0
  6649.0           17907.0
  8855.0


   (8) South Atlantic (SAT):

                                   kHz



  2854.0           8861.0
  2935.0           11291.0
  3452.0           13315.0
  5565.0           13357.0
  6535.0           17955.0


   (9) Southeast Asia (SEA):

                                   kHz



  3470.0           10066.0
  3485.0           11396.0
  5649.0           13309.0
  5655.0           13318.0
  6556.0           17907.0
  8942.0           ...........................


   (10) East Asia (EA):

                                   kHz



  3016.0           10042.0
  3485.0           11396.0
  3491.0           13297.0
  5655.0           13303.0
  5670.0           13309.0
  6571.0           17907.0
  8897.0


   (11) Middle East (MID):

                                   kHz



  2944.0           6631.0
  2992.0           8918.0
  3467.0           8951.0
  3473.0           10018.0
  4669.0           11375.0
  5658.0           13288.0
  5667.0           13312.0
  6625.0           17961.0


   (12) Africa (AFI):

                                   kHz



  2851.0           6673.0
  2878.0           8894.0
  3419.0           8903.0
  3425.0           8894.0
  3467.0           11300.0
  4657.0           11330.0
  5493.0           13273.0
  5652.0           13288.0
  5658.0           13294.0
  6559.0           17961.0
  6574.0


   (13) Indian Ocean (INO):

                                   kHz



  3476.0           13306.0
  5634.0           17961.0
  8879.0


   (14) North Central Asia (NCA):

                                   kHz



  3004.0           6592.0
  3019.0           10096.0
  4678.0           13303.0
  5646.0           13315.0
  5664.0           17958.0


   (15) Caribbean (CAR):

                                   kHz



  2887.0           8846.0
  3455.0           8918.0
  5520.0           11387.0
  5550.0           11396.0
  6577.0           13297.0
  6586.0           17907.0


   (e) Long distance operational control. Long distance operational control
   frequencies provide communications between aeronautical enroute stations and
   aircraft stations anywhere in the world for control of the regularity and
   efficiency of flight and safety of aircraft. World-wide frequencies are not
   assigned by administrations for MWARA and Regional and Domestic Air Route
   Area (RDARA).

                                   kHz



  3013.0           10075.0
  3494.0           11342.0
  5529.0           11348.0
  5538.0           13330.0
  6637.0           13348.0
  6640.0           17925.0
  8933.0           21964.0
 10033.0


   (f) 121.500 MHz: Emergency and distress only.

   [ 53 FR 28940 , Aug. 1, 1988, as amended at  54 FR 11721 , Mar. 22, 1989;  55 FR 28628 , July 12, 1990;  56 FR 21084 , May 7, 1991;  58 FR 44954 , Aug. 25, 1993;
    66 FR 26800 , May 15, 2001]


Goto Section: 87.261 | 87.265

Goto Year: 2004 | 2006
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