Sec.  25.258   Sharing between NGSO MSS Feeder links Stations and GSO FSS services
in the 29.25–29.5 GHz Bands.

   (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 systems shall, to the maximum extent possible, operate
   with frequency/polarization selections, in the vicinity of operational or
   planned NGSO MSS feeder link earth station complexes, that will minimize
   instances of unacceptable interference to the GSO FSS space stations. 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 shall conform to the rules contained in  Sec. 25.138.

   (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]