§  87.303   Frequencies.

   (a) These frequencies are available for assignment to flight test land
   and aircraft stations:
     kHz       MHz       MHz       MHz
   3281.0^1 123.175^2 123.225^3 123.400^2
            123.200^3 123.375^3 123.450^3

   (b) These additional frequencies are available for assignment only to
   flight test stations of aircraft manufacturers:
      MHz       MHz       MHz        MHz
   123.125^2 123.275^3 S123.425^3 123.550^3
   123.150^2 123.325^3 S123.475^3 123.575^2
   123.250^3 123.350^3 S123.525^3

   ^1When R3E, H3E or J3E emission is used, the assigned frequency will be
   3282.4 kHz (3281.0 kHz carrier frequency).

   ^2This frequency is available only to itinerant stations that have a
   requirement to be periodically transferred to various locations.

   ^3Mobile station operations on these frequencies are limited to an area
   within 320 km (200 mi) of an associated flight test land station.

   (c) These frequencies are available for equipment test, emergency and
   backup use with aircraft beyond the range of VHF propagation. Either
   H2B, J3E, J7B or J9W emission may be used.

   Frequencies (carrier) available kHz:

   kHz
   2851.0 8822.0
   3004.0 10045.0
   3443.0 11288.0
   5451.0 11306.0
   5469.0 13312.0
   5571.0 17964.0
   6550.0 21931.0

   (d)(1) Frequencies in the bands 1435-1525 MHz and 2360-2395 MHz are
   assigned in the mobile service primarily for aeronautical telemetry and
   associated telecommand operations for flight testing of aircraft and
   missiles, or their major components. The bands 2310-2320 MHz and
   2345-2360 MHz are also available for these purposes on a secondary
   basis. Permissible uses of these bands include telemetry and associated
   telecommand operations associated with the launching and reentry into
   the Earth's atmosphere, as well as any incidental orbiting prior to
   reentry, of objects undergoing flight tests. In the band 1435-1525 MHz,
   the following frequencies are shared with flight telemetry mobile
   stations: 1444.5, 1453.5, 1501.5, 1515.5, and 1524.5 MHz. In the band
   2360-2395 MHz, the following frequencies may be assigned for telemetry
   and associated telecommand operations of expendable and re-usable
   launch vehicles, whether or not such operations involve flight testing:
   2364.5, 2370.5 and 2382.5 MHz. In the band 2360-2395 MHz, all other
   mobile telemetry uses shall not cause harmful interference to, or claim
   protection from interference from, the above uses.

   (2) The authorized bandwidths for stations operating in the bands
   1435.0-1525.0 MHz, 1525.0-1535.0 MHz and 2310.0-2390.0 MHz are normally
   1, 3 or 5 MHz. Applications for greater bandwidths will be considered
   in accordance with the provisions of § 87.135. Each assignment will be
   centered on a frequency between 1435.5 MHz and 1534.5 MHz or between
   2310.5 MHz and 2389.5 MHz, with 1 MHz channel spacing.

   (e) 121.500 MHz: Emergency and distress only.

   [ 53 FR 28940 , Aug. 1, 1988, as amended at  55 FR 4175 , Feb. 7, 1990;  58 FR 44954 , Aug. 25, 1993;  58 FR 67696 , Dec. 22, 1993;  60 FR 37829 , July
   24, 1995;  62 FR 11107 , Mar. 11, 1997;  68 FR 74388 , Dec. 23, 2003;  69 FR 77950 , Dec. 29, 2004;  71 FR 29818 , May 24, 2006]