Sec. 25.272  General inter-system coordination procedures.

    (a) Each space station licensee in the Fixed-Satellite Service shall 
establish a satellite network control center which will have the 
responsibility to monitor space-to-Earth transmissions in its system. 
This would indirectly monitor uplink earth station transmissions in its 
system and to coordinate transmissions in its satellite system with 
those of other systems to prevent harmful interference incidents or, in 
the event of a harmful interference incident, to identify the source of 
the interference and correct the problem promptly.
    (b) Each space station licensee shall maintain on file with the 
Commission and with its Columbia Operations Center in Columbia, 
Maryland, a current listing of the names, titles, addresses and 
telephone numbers of the points of contact for resolution of 
interference problems. Contact personnel should include those 
responsible for resolution of short term, immediate interference 
problems at the system control center, and those responsible for long 
term engineering and technical design issues.
    (c) The transmitting earth station licensee shall provide the 
operator(s) of the satellites, on which the licensee is authorized to 
transmit, contact telephone numbers for the control center of the earth 
station and emergency telephone numbers for key personnel; a current 
file of these contacts shall be maintained at each satellite system 
control center.

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    (d) An earth station licensee shall ensure that each of its 
authorized earth stations complies with the following:
    (1) The earth station licensee shall ensure that there is 
continuously available means of communications between the satellite 
network control center and the earth station operator or its remote 
control point as designated by the licensee.
    (2) The earth station operator shall notify the satellite network 
control center and receive permission from the control center before 
transmitting to the satellite or changing the basic characteristics of a 
transmission.
    (3) The earth station operator shall keep the space station licensee 
informed of all actual and planned usage.
    (4) Upon approval of the satellite network control center, the earth 
station operator may radiate an RF carrier into the designated 
transponder. Should improper illumination of the transponder or undue 
adjacent transponder interference be observed by the satellite network 
control center, the earth station operator shall immediately take 
whatever measures are needed to eliminate the problem.
    (5) The space station licensee may delegate the responsibility and 
duties of the satellite network control center to a technically 
qualified user or group of users, but the space station licensee shall 
remain ultimately responsible for the performance of those duties.
[ 58 FR 13421 , Mar. 11, 1993, as amended at  62 FR 5931 , Feb. 10, 1997]