frequency=$(zenity --timeout=10 --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" APRS "Test APRS decoding with CubeSatSim WAV file")