An earth station is to receive 972 multiplexed telephone channels from Intelsat V global beam. The...

 

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An earth station is to receive 972 multiplexed telephone channels from Intelsat V global beam. The rms test- tone deviation specified for the system is 802 kHz and the top baseband frequency is 4028kHz. Using a peaking factor g=3.16 determine the following: a) The number of groups and supergroups that are involved. b) The required receiver bandwidth before FM detection. c) The overall C/T at the receiver input required for operation at a 15-dB C/N. d) The overall C/N required at the receiver input required for a worst-channel S/N of 40 dB. answers: An earth station is to receive 972 multiplexed telephone channels from Intelsat V global beam. The rms test- tone deviation specified for the system is 802 kHz and the top baseband frequency is 4028kHz. Using a peaking factor g=3.16 determine the following: a) The number of groups and supergroups that are involved. b) The required receiver bandwidth before FM detection. c) The overall C/T at the receiver input required for operation at a 15-dB C/N. d) The overall C/N required at the receiver input required for a worst-channel S/N of 40 dB. answers:

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a The number of groups and supergroups that are involved There ... View the full answer