![]() The P25 standard C4FM modulation encodes and transmits the applied speech as one of four ‘symbols’ - defined states of frequency (600Hz or 1800Hz) either side of the RF carrier frequency.These scanner radios are top of line in the series, around $3000-$5000+ each when new. I have some OPP MTO EMS etc Portable Handheld SMARTZONE ASTRO P25 Motorola XTS5000 Motorola Radio Police Scanner Trunking Radio! (1 w/LCD screen, 3 without, all programmed same) #1 Police & Public Safety premium scanner.
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