What is Digital Selective Calling? (DSC)
by Boating & RV 5 Jul 2019 17:06 BST

VHF Marine Transceiver IC-M330G © boatingandrv.com.au
Digital Selective Calling, or DSC is used in VHF radios to call another DSC radio using an MMSI number. Distress signals can be sent via DSC to emergency stations and when equipped with GPS, can also contain the location of the vessel.