#!/bin/sh #This is only a Narraw Band FM modulator, for FM broadcast modulation , use PiFMRDS # Need to use a direct FM modulation with librpitx and not using IQ : TODO echo "If you need to test broadcast FM, use PiFMRDS" #(while true; do cat sampleaudio.wav; done) | csdr convert_i16_f | csdr gain_ff 2500 | sudo ./sendiq -i /dev/stdin -s 24000 -f 434e6 -t float 1 (while true; do cat "$2"; done) | csdr convert_i16_f \ | csdr gain_ff 7000 | csdr convert_f_samplerf 20833 \ | sudo ./rpitx -i- -m RF -f "$1"