§  25.258   Sharing between NGSO MSS feeder-link stations and GSO FSS services
in the 29.25-29.5 GHz band.

   (a) Operators of NGSO MSS feeder link earth stations and GSO FSS earth
   stations in the band 29.25 to 29.5 GHz where both services have a
   co-primary allocation shall cooperate fully in order to coordinate
   their systems. During the coordination process both service operators
   shall exchange the necessary technical parameters required for
   coordination.

   (b) Licensed GSO FSS earth stations in the vicinity of operational NGSO
   MSS feeder-link earth station complexes must, to the maximum extent
   possible, operate with frequency/polarization selections that will
   minimize unacceptable interference with reception of GSO FSS and NGSO
   MSS uplink transmissions in the 29.25-29.5 GHz band. Earth station
   licensees operating with GSO FSS systems shall be capable of providing
   earth station locations to support coordination of NGSO MSS feeder link
   stations under paragraphs (a) and (c) of this section. Operation of
   ubiquitously deployed GSO FSS earth stations in the 29.25-29.5 GHz
   frequency band must conform to the rules contained in § 25.218(i).

   (c) Applicants for authority to use the 29.25-29.5 GHz band for NGSO
   MSS feeder uplinks will have to demonstrate that their systems can
   share with GSO FSS and NGSO MSS systems that have been authorized for
   operation in that band.

   [ 67 FR 37336 , May 29, 2002, as amended at  68 FR 16967 , Apr. 8, 2003;  81 FR 55348 , Aug. 18, 2016;  84 FR 53659 , Oct. 8, 2019]