Telecommunication Journal, 58. sējums,7-12. izdevumsInternational Telecommunication Union, 1991 |
No grāmatas satura
1.–3. rezultāts no 90.
583. lappuse
... satellite sys- tem . For a stand - alone satellite system , the total satellite power of 300 W is necessary to provide 12 stereophonic programmes in a bandwidth of 4 MHz at the operating frequency of 1 GHz and the coverage area ...
... satellite sys- tem . For a stand - alone satellite system , the total satellite power of 300 W is necessary to provide 12 stereophonic programmes in a bandwidth of 4 MHz at the operating frequency of 1 GHz and the coverage area ...
584. lappuse
... satellite 12 km / ( 1+ cos α ) area where the station boosts the satellite by at at least 3 dB lite as well as terrestrial services or reduce the transmitting power of the satellite and main transmitter for the terrestrial service . It ...
... satellite 12 km / ( 1+ cos α ) area where the station boosts the satellite by at at least 3 dB lite as well as terrestrial services or reduce the transmitting power of the satellite and main transmitter for the terrestrial service . It ...
650. lappuse
... satellite service in the United States United States Satellite Broadcasting , Inc. ( USSB ) and Hughes Communications , Inc. have signed a contract to construct and operate a direct broadcasting satellite ( DBS ) system that will begin ...
... satellite service in the United States United States Satellite Broadcasting , Inc. ( USSB ) and Hughes Communications , Inc. have signed a contract to construct and operate a direct broadcasting satellite ( DBS ) system that will begin ...
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