4 ms·
Do you mean that you could tune into the local oscillator in the spy's receiver that would be displaced from the transmitted frequency by the value of the inter
by keithpeter 10y ago
Do you mean that you could tune into the local oscillator in the spy's receiver that would be displaced from the transmitted frequency by the value of the intermediate frequency?
E.g. number station on 6000Khz and IF 465KHz so local oscillator 6465KHz?
What happened when receivers went over to up-conversion and frequency synthesis?