Sec.  25.214   Technical requirements for space stations in the satellite
digital audio radio service.

   

   (a) Definitions.

   (1) Allocated bandwidth. The term "allocated bandwidth" refers to the
   entry in the Table of Frequency Allocations of a given frequency band
   for the purpose of its use by one or more terrestrial or space
   radiocommunication services under specified conditions. This term
   shall be applied to the 2310-2360 MHz band for satellite DARS.

   (2) Frequency Assignment. The term "frequency assignment" refers to
   the authorization given by the Commission for a radio station to use a
   radio frequency or radio frequency channel under specified conditions.
   This term shall be applied to the two frequency bands (A)
   2320.0-2332.5 MHz and (B) 2332.5-2340.0 MHz for satellite DARS.

   (b) Each system authorized under this section will be conditioned upon
   construction, launch and operation milestones as outlined in
   Sec. 25.144(b). The failure to meet any of the milestones contained in an
   authorization will result in its cancellation, unless such failure is
   due to circumstances beyond the licensee's control or unless otherwise
   determined by the Commission upon proper showing by the licensee in
   any particular case.

   (c) Frequency assignments will be made for each satellite DARS system
   as follows:

   (1) Exclusive satellite DARS licenses are limited to the 2320-2345 MHz
   band segment of the allocated bandwidth for satellite DARS;

   (2) Two, 12.5 MHz frequency assignments are available for satellite
   DARS: 2320.0-2332.5 MHz and 2332.5-2345.0 MHz;

   (3) Satellite DARS licensees may reduce their assigned bandwidth
   occupancy to provide telemetry beacons in their exclusive frequency
   assignments;

   (4) Each licensee may employ cross polarization within its exclusive
   frequency assignment and/or may employ cross polarized transmissions
   in frequency assignments of other satellite DARS licensees under
   mutual agreement with those licensees. Licensees who come to mutual
   agreement to use cross-polarized transmissions shall apply to the
   Commission for approval of the agreement before coordination is
   initiated with other administrations by the licensee of the exclusive
   frequency assignment; and

   (5) Feeder uplink networks are permitted in the following
   Fixed-Satellite Service frequency bands: 7025-7075 MHz and 6725-7025
   MHz (101° W.L. orbital location only).

   [ 62 FR 11106 , Mar. 11, 1997]