PhosphorDSC

DSC DECODER

Real-time Digital Selective Calling decoder. HF and MF GMDSS distress, urgency, safety and routine calls with MMSI, position and ECC check — ITU-R M.493 via your iPhone microphone.

DSC decoder app for iPhone. Decode HF and MF Digital Selective Calling from a shortwave receiver using your microphone, on 2187.5 kHz, 8414.5 kHz and the other GMDSS distress and calling channels. Full ITU-R M.493 decoding with DX/RX time diversity, ECC checking, automatic tone polarity and AFC, and every call parsed into type, MMSI, position and frequency. Essential GMDSS listening for mariners, radio officers, and shortwave listeners.