tx support

Hey there, I was testing the P25 Tx support of OP25 with a hackrf but I am encountering strange behavior. I am able to transmit "something" with the hackrf using the cmd ./dv_tx.py -p p25 --args 'hackrf' -f ./test.wav -Q 145000000 -q 0 --gains 'RF:0,IF:20' inspired by Matt Ames (@MattSR): On...