Signal transmission device having an automatic transmission leve
Signaling protocol for a distributive wide area transmission tru
Simplified receiver with rotator for performing position...
Simulcast satellite paging system with over lapping paging recep
Simulcast satellite paging system with provision for signal inte
Single channel autonomous digitally trunked RF communications sy
Single channel remote site trunking
Single frequency repeater
Single frequency repeater
Single site, split location trunked radio communications system
Small-sized radio frequency type repeater
Space communications apparatus employing switchable band filters
Space-based network architectures for satellite...
Space-based network architectures for satellite...
Space-based server network architecture
Space-based server network architecture
Spacecraft cellular communication system with mutually offset hi
Spacecraft with paralleled amplifiers and redundancy
Spatial guardbands for terrestrial reuse of satellite...
Spatial guardbands for terrestrial reuse of satellite...