From 8ade73385c9c8e62f554de3856421d619d24a81e Mon Sep 17 00:00:00 2001 From: Alan Johnston Date: Mon, 2 Mar 2026 14:46:54 -0500 Subject: [PATCH] Update pacsatsim.sh add l parameter for loopback --- pacsatsim.sh | 145 +++++---------------------------------------------- 1 file changed, 13 insertions(+), 132 deletions(-) diff --git a/pacsatsim.sh b/pacsatsim.sh index 8b395c34..c80132d2 100755 --- a/pacsatsim.sh +++ b/pacsatsim.sh @@ -71,152 +71,22 @@ sudo modprobe snd-aloop echo -#frequency=$(zenity --list 2>/dev/null --width=410 --height=360 --title="Packet Decoding with Direwolf" --text="Choose the frequency for packet decoding" --column="kHz" --column="Application" 144390 "APRS US 2m" 434900 "CubeSatSim" 144800 "APRS European 2m" 145175 "APRS Australian 2m" Other "Choose another frequency" 145825 "APRS on ISS" 437100 "Serenity CubeSat 4800 bps" Serenity "Test Serenity CubeSat decoding with WAV file" APRS "Test APRS decoding with CubeSatSim WAV file") -#echo $frequency - -#if [ -z "$frequency" ]; then - -#echo "No choice made. Exiting." - -#sleep 3 - -#exit - -#echo "Choose the number for the packet decoding option:" -#echo -#echo "1. APRS US 2m (144390 kHz)" -#echo "2. CubeSatSim (434900 kHz)" -#echo "3. APRS European 2m (144800 kHz)" -#echo "4. APRS Australian 2m (145175 kHz)" -#echo "5. APRS on another frequency" -#echo "6. APRS on ISS (145825 kHz)" -#echo "7. Serenity CubeSat 4800 bps (437.1 MHz)" -#echo "8. Test Serenity CubeSat decoding with WAV file" -#echo "9. Test APRS decoding with CubeSatSim WAV file" -#echo - -#read -r choice - -choice=2 +#choice=2 #fi -if [ "$choice" = "1" ] || [ "$frequency" = "144390" ]; then - frequency=144390000 - -elif [ "$choice" = "2" ] || [ "$frequency" = "434900" ] ; then - - frequency=434900000 +# frequency=434900000 echo echo "If your Pacsat Ground Station is transmitting packets, you will see them here" echo -elif [ "$choice" = "3" ] || [ "$frequency" = "144800" ]; then - - frequency=144800000 - -elif [ "$choice" = "4" ] || [ "$frequency" = "145175" ]; then - - frequency=145175000 - -elif [ "$choice" = "5" ] || [ "$frequency" = "Other" ] ; then - - echo - - echo "Enter the frequency in kiloHertz" - - echo - - read -r frequency - - frequency=$frequency"000" - - #echo $frequency - -elif [ "$choice" = "6" ] || [ "$frequency" = "145825" ] ; then - - frequency=145825000 - echo - echo "If the ISS is overhead and in APRS mode (see tracking application such as Gpredict), you will see packets." - echo - -elif [ "$choice" = "7" ] || [ "$frequency" = "437100" ] ; then - - frequency=437100000 - echo - echo "If the Serenity CubeSat is overhead and transmitting (see tracking application such as Gpredict), you will see packets." - echo - -elif [ "$choice" = "8" ] || [ "$frequency" = "Serenity" ] ; then - - echo "A recorded WAV file will play and you should see some packets decoded" - - echo - - value=`aplay -l | grep "Loopback"` - echo "$value" > /dev/null - set -- $value - -# aplay -D hw:0,0 /home/pi/CubeSatSim/groundstation/WAV/SDRSharp_20210830_200034Z_437097377Hz_AF.wav & -# aplay -D hw:${2:0:1},0,0 /home/pi/CubeSatSim/groundstation/WAV/SDRSharp_20210830_200034Z_437097377Hz_AF.wav & - aplay -D hw:0,0 /home/pi/CubeSatSim/groundstation/WAV/beacon_test_2.wav & - aplay -D hw:${2:0:1},0,0 /home/pi/CubeSatSim/groundstation/WAV/beacon_test_2.wav & - - timeout 30 direwolf -c /home/pi/CubeSatSim/groundstation/direwolf/direwolf-4800.conf -r 48000 -t 0 - - echo - - echo "Test complete. This window will close in 10 seconds." - - sleep 5 - - exit - -elif [ "$choice" = "8" ] || [ "$frequency" = "APRS" ] ; then - - echo "A recorded APRS WAV file from the CubeSatSim will play and you should see a packet decoded." - - echo - - value=`aplay -l | grep "Loopback"` - echo "$value" > /dev/null - set -- $value - - #aplay -D hw:0,0 /home/pi/CubeSatSim/telem.wav & - (while true; do (sleep 2 && aplay -D hw:0,0 /home/pi/CubeSatSim/telem.wav &>/dev/null); done) & - - #aplay -D hw:${2:0:1},0,0 /home/pi/CubeSatSim/telem.wav & - (while true; do (sleep 2 && aplay -D hw:${2:0:1},0,0 /home/pi/CubeSatSim/telem.wav &>/dev/null); done) & - - timeout 30 direwolf -c /home/pi/CubeSatSim/groundstation/direwolf/direwolf.conf -r 48000 -t 0 - - echo - - echo "Test complete. This window will close in 10 seconds." - - sleep 5 - - exit - -#fi - -fi #echo #echo "Note that the 'Tuned to' frequency will be different from the chosen frequency due to the way SDRs work." -echo - -if [ "$choice" = "7" ] || [ "$choice" = "8" ] || [ "$frequency" = "Serenity" ] || [ "$frequency" = "437100000" ] ; then - - echo -e "Auto decoding 4800 bps AX.25 packets on $frequency Hz" - - direwolf -r 48000 -c /home/pi/CubeSatSim/groundstation/direwolf/direwolf-4800.conf -t 0 & - -else # echo -e "Auto decoding APRS Pacsat packets on $frequency Hz" @@ -224,8 +94,19 @@ else # /usr/bin/x-terminal-emulator --geometry=120x40 -e "/home/pi/CubeSatSim/pacsatsim-df.sh" + + +if [ ! "$1" = "l" ]; then +#/usr/bin/x-terminal-emulator --geometry=120x40 -e "/home/pi/CubeSatSim/groundstation/pacsat-df.sh" + echo "Using TXC FM transceiver" /home/pi/CubeSatSim/pacsatsim-df.sh & +else + echo "Using audio loopback" + /home/pi/CubeSatSim/pacsatsim-d.sh & + +fi + # arecord -D plughw:CARD=Loopback,DEV=1 -f S16_LE -r 48000 -c 1 | csdr convert_s16_f | csdr gain_ff 14000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f 434900 & ## arecord -D plughw:CARD=Loopback,DEV=1 -f S16_LE -r 48000 -c 1 | csdr convert_s16_f | csdr gain_ff 4000 | csdr convert_f_samplerf 20833 | sudo rpitx -i- -m RF -f 434900 &