Sec.  25.212   Narrowband transmissions in the 12/14 GHz GSO Fixed-Satellite
Service.

   

   (a) Except as otherwise provided by this part, criteria for
   unacceptable levels of interference caused by other satellite networks
   shall be established on the basis of nominal operating conditions and
   with the objective of minimizing orbital separations between
   satellites.

   (b) Emissions with an occupied bandwidth of less than 2 MHz are not
   protected from interference from wider bandwidth transmissions if the
   r.f. carrier frequency of the narrowband signal is within ±1 MHz of
   one of the frequencies specified in Sec. 25.211(a).

   (c) In the 14 GHz band, an earth station with an equivalent diameter
   of 1.2 meters or greater may be routinely licensed for transmission of
   narrowband analog services with bandwidths up to 200 kHz if the
   maximum input power density into the antenna does not exceed -8 dBW/4
   kHz and the maximum transmitted satellite carrier EIRP density does
   not exceed 13 dBW/4 kHz, and for transmission of narrowband and/or
   wideband digital services, if the maximum input power density into the
   antenna does not exceed -14 dBW/4 kHz and the maximum transmitted
   satellite carrier EIRP density does not exceed +6.0 dBW/4 kHz.

   (d) In the 6 GHz band, an earth station with an equivalent diameter of
   4.5 meters or greater may be routinely licensed for transmission of
   SCPC services if the maximum power densities into the antenna do not
   exceed +0.5 dBW/4 kHz for analog SCPC carriers with bandwidths up to
   200 kHz, and do not exceed -2.7 dBW/4 kHz for narrow and/or wideband
   digital SCPC carriers.

   [ 58 FR 13421 , Mar. 11, 1993, as amended at  62 FR 5931 , Feb. 10, 1997;
    62 FR 51378 , Oct. 1, 1997]