Encode and decode DSC (Digital Selective Calling) maritime radio signals in audio WAV format. DSC is the GMDSS-mandated digital signaling system on marine VHF Channel 70 and MF/HF frequencies for distress calls, vessel hailing, and automated radio calls. Uses 100 baud FSK with 170 Hz shift. Use this skill whenever the user mentions DSC, Digital Selective Calling, VHF Channel 70, marine radio digital, GMDSS DSC, maritime distress call, MMSI call, ship calling, marine VHF decoder, or wants to create/analyze DSC audio WAV files. Covers encoding (calls to WAV) and decoding (WAV to call data).
2026-04-14