PMR radio deomdulator and transcripter based on RtlSdr (https://pypi.org/project/pyrtlsdr/)
For librtlsdr on windows: https://ftp.osmocom.org/binaries/windows/rtl-sdr/
Receiver center frequency: 446.1 MHz
Receiver sample rate: 250 ksps ( 40 x 6.25 KHz )
Channel sample rate: 15.625 ksps ( receiver rate decimate by 16 and rate close to 16 ksps )