§  87.323   Frequencies.

   (a) 121.500 MHz: Emergency and distress only.

   (b) The frequencies 121.950, 123.300 and 123.500 MHz are available for
   assignment to aviation support stations used for pilot training,
   coordination of lighter-than-air aircraft operations, or coordination
   of soaring or free ballooning activities. Applicants for 121.950 MHz
   must coordinate their proposal with the appropriate FAA Regional
   Spectrum Management Office. The application must specify the FAA Region
   notified and the date notified. Applicants for aviation support land
   stations may request frequency(ies) based upon their eligibility
   although the Commission reserves the right to specify the frequency of
   assignment. Aviation support mobile stations will be assigned 123.300
   and 123.500 MHz. However, aviation support mobile stations must operate
   only on a noninterference basis to communications between aircraft and
   aviation support land stations.

   (c) The frequency 122.775 MHz and, secondary to aeronautical multicom
   stations, the frequency 122.850 MHz are available for assignment to
   aviation support stations. These frequencies may be used for
   communications between aviation service organizations and aircraft in
   the airport area. These frequencies must not be used for air traffic
   control purposes or to transmit information pertaining to runway, wind
   or weather conditions.

   (d) The frequency 3281.0 kHz is available for assignment to aviation
   support stations used for coordination of lighter-than-air aircraft
   operations.

   [ 53 FR 28940 , Aug. 1, 1988, as amended at  63 FR 68958 , Dec. 14, 1998]

Subpart L--Aeronautical Utility Mobile Stations