Home / Questions / 1 The cable for a 400 km repeater system has a 05 dBkm Find the minimum number of equal l...
1. The cable for a 400 km repeater system has a = 0.5 dB/km. Find the minimum number of equal-length repeater sections needed to get (S/N)_{D} 30 dB if S_{T}/N_{0}W = 80 dB.
2. If all other parameters of a cable transmission system are fixed, show that the number of equal-length repeater sections that maximizes (S/N)_{D} is m = 0.23L _{dB}.
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