Externet
Well-Known Member
Years ago, two-way radio communications were mostly FM/PM. Now, law enforcement, fire, ambulances... have digital radios.
What is or are the current modulation modes ? I have a very sophisticated receiver but only for AM/FM and would like to know if there is a way to tap its circuitry to monitor public service transmissions (as scanners do) by building a proper demodulator. What would such demodulator would be like ?
What is or are the current modulation modes ? I have a very sophisticated receiver but only for AM/FM and would like to know if there is a way to tap its circuitry to monitor public service transmissions (as scanners do) by building a proper demodulator. What would such demodulator would be like ?