DSCdecoder decodes the DSC digital signals from ships and coast stations using
the sound card in your PC. You need a suitable MF, HF or VHF band radio receiver
tuned to one of the DSC distress and calling channels or to one of the Navtex
channels. The program decodes the received digital data and displays and logs
the messages.
Signal mode - In Signal Mode, DSCdecoder displays the raw digital signals on your
PC screen in a diagnostic display which helps you to set up the system and tune
the receiver. DSCdecoder also displays a rolling audio spectrum display if that
is easier for you.