frequency=$(zenity --list 2>/dev/null --title="Choose the frequency" --column="kHz" --column="Use"145800"ISS"434900"CubeSatSim"144800 Other "Choose another frequency" SSTV "Test SSTV decoding with WAV file")
frequency=$(zenity --list 2>/dev/null --title="Choose the frequency for SSTV decoding:" --column="Frequency in kHz" --column="Use"145800"ISS"434900"CubeSatSim" Other "Choose another frequency" SSTV "Test SSTV decoding with WAV file")
echo"If your CubeSatSim is transmitting in SSTV mode (mode 6) you should get images."
echo"If your CubeSatSim is transmitting in SSTV mode (mode 5) you should get images."
echo"Note: if you see and hear an SSTV signal but don't get any images, the CubeSatSim signal might have a frequency offset. Try rebooting the CubeSatSim to fix."