§ 22.352   Protection from interference.

   Public Mobile Service stations operating in accordance with applicable
   FCC rules and the terms and conditions of their authorizations are
   normally considered to be non-interfering. If the FCC determines,
   however, that interference that significantly interrupts or degrades a
   radio service is being caused, it may, in accordance with the
   provisions of sections 303(f) and 316 of the Communications Act of
   1934, as amended, (47 U.S.C. 303(f), 316), require modifications to any
   Public Mobile station as necessary to eliminate such interference.

   (a) Failure to operate as authorized. Any licensee causing interference
   to the service of other stations by failing to operate its station in
   full accordance with its authorization and applicable FCC rules shall
   discontinue all transmissions, except those necessary for the immediate
   safety of life or property, until it can bring its station into full
   compliance with the authorization and rules.

   (b) Intermodulation interference. Licensees should attempt to resolve
   such interference by technical means.

   (c) Situations in which no protection is afforded. Except as provided
   elsewhere in this part, no protection from interference is afforded in
   the following situations:

   (1) Interference to base receivers from base or fixed transmitters.
   Licensees should attempt to resolve such interference by technical
   means or operating arrangements.

   (2) Inteference to mobile receivers from mobile transmitters. No
   protection is provided against mobile-to-mobile interference.

   (3) Interference to base receivers from mobile transmitters. No
   protection is provided against mobile-to-base interference.

   (4) Interference to fixed stations. Licensees should attempt to resolve
   such interference by technical means or operating arrangements.

   (5) Anomalous or infrequent propagation modes. No protection is
   provided against interference caused by tropospheric and ionospheric
   propagation of signals.

   (6) Facilities for which the Commission is not notified. No protection
   is provided against interference to the service of any additional or
   modified transmitter operating pursuant to § 1.929 or § 22.165, unless
   and until the licensee modifies its authorization using FCC Form 601.

   (7) In-building radiation systems. No protection is provided against
   interference to the service of in-building radiation systems (see
   § 22.383).

   [ 59 FR 59507 , Nov. 17, 1994, as amended at  62 FR 11633 , Mar. 12, 1997;
    63 FR 68944 , Dec. 14, 1998;  70 FR 19308 , Apr. 13, 2005]

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