I have designed a preamplifier and a main amplifier. The Preamplifier is separated by 300 meters from the main amplifier. I want to give power supply to pre amplifier from the main amplifier via RF cable RG-58 and receive the signal from pre amplifier on same cable 100Khz. These cables are already installed. So I can not change them. I need some solution to transmit signal and receive power supply on the same cable RG-58. Thanks
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