A communication signal can be routed from any location in a spot beam satellite system to any other location within the spot beam system by simply choosing the proper carrier frequency for the uplink to the satellite. The spot beams are fully interconnected without any need for active switching within...http://www.google.fr/patents/US4813036?utm_source=gb-gplus-shareBrevet US4813036 - Fully interconnected spot beam satellite communication system
Fully interconnected spot beam satellite communication system
