Forum Discussion
camperguy99
May 12, 2018Explorer
Back in the days of landline phones how do you think they managed to get your voice thousands of miles across this great country? Yep an amplifier every few tens of miles on the L4 & L5 cables. I seem to remember a figure of 2000-3000 dB gain from coast to coast. Go figure.
The S/N ratio is determined at the antenna unit. RMS the amplifiers noise (if properly spaced) with that of the incoming signal and the amplifier has little or no change in the S/N ratio.
The S/N ratio is determined at the antenna unit. RMS the amplifiers noise (if properly spaced) with that of the incoming signal and the amplifier has little or no change in the S/N ratio.
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