decoder.sh

if [ "$1" = "ISS" ];then
    FREQ=437550000
    SAT="ISS (ZARYA)"
    TLE=/tmp/amateur.txt
elif [ "$1" = "ISSTV" ];then
    FREQ=145800000
    SAT="ISS (ZARYA)"
    TLE=/tmp/amateur.txt
elif [ "$1" = "NO44" ]; then
    FREQ=145825000
    SAT="PCSAT (NO-44)"
    TLE=/tmp/amateur.txt
elif [ "$1" = "PSAT" ]; then
    FREQ=145825000
    SAT="PSAT"
    TLE=/tmp/multi.txt
else
    FREQ=145825000
    SAT=NONE

fi

rtl_sdr -s 960000 -f $FREQ -g 44 -p 37 - |\
csdr convert_u8_f |\
doppler4 track --samplerate 960000 --intype f32 --outtype f32 --frequency $FREQ --tlefile "$TLE" --tlename "$SAT" --location lat=53.3404,lon=15.0579,alt=25 |\
demod4 --samplerate 960000 --bandwidth 10000 --intype f32 --outtype i16 --resamplerate 48000 fm --deviation 5000 |\
csdr fir_decimate_cc 20 0.015 HAMMING |\
csdr fmdemod_quadri_cf |\
csdr limit_ff |\
csdr convert_f_s16