§ 25.275   Particulars of operation.

   (a)  Radio station authorizations issued under this part will normally
   specify  only  the  frequency bands authorized for transmission and/or
   reception of the station.

   (b)  When  authorized  frequency  bands  are  specified in the station
   authorization, the licensee is authorized to transmit any number of r.f.
   carriers on any discrete frequencies within an authorized frequency band in
   accordance with the other terms and conditions of the authorization and the
   requirements of this part. Specific r.f. carrier frequencies within the
   authorized  frequency  band shall be selected by the licensee to avoid
   unacceptable levels of interference being caused to other earth, space or
   terrestrial  stations.  Any coordination agreements, both domestic and
   international, concerning specific frequency usage constraints, including
   non-use of any particular frequencies within the frequency bands listed in
   the station authorization, are considered to be conditions of the station
   authorization.

   (c) A license for a transmitting earth station will normally specify only
   the  r.f.  carriers having the highest e.i.r.p. density, the narrowest
   bandwidth, and the largest bandwidth authorized for transmission from that
   station.  Unless otherwise specified in the station authorization, the
   licensee  is  authorized  to  transmit  any  other type of carrier not
   specifically listed which does not exceed the highest e.i.r.p., e.i.r.p.
   density and bandwidth prescribed for any listed emission.

   (d)  Only the most sensitive emission(s) for which protection is being
   afforded from interference in the authorized receive frequency band(s) will
   be specified in the station authorization.

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