Originally Posted by rebel heart
Do people actually use the DSC
function? I've never called anyone, never had anyone call me, and don't know anyone who's had it happen either. I've had a DSC radio
for years, broadcast AIS
, etc. Everyone just hails on 13 or 16.
I have my radio
on most of the time and, in the past 2 years in the Caribbean
have only gotten 3 or 4 DSC distress
broadcasts (DSC radios do not allow the user to erase distress
messages from the log); it is surprising how little DSC is used there. Europe
, on the other hand, almost exclusively uses DSC; in fact the GMDSS legal
requirement is to have a watch on VHF
CH70 (the DSX channel) primarily, and VHF
CH16 (the general hailing channel).
I'm not sure of the exact dates, but new ships stations have required DSC since 2005 or earlier.
I love DSC, since I can contact my friends using their MMSI digitally and suggest a working frequency and we can communicate without ever going anywhere near VHF CH16. When used with AIS
it is even better, since the AIS signal also sends the MMSI, so instead of calling "Big tanker about to run me over" on CH16 you can dial the vessel directly.
Originally Posted by ITU
The Global Maritime Distress and Safety System (GMDSS) became fully operational on 01 February 1999 and Channel 70 is now the primary channel for Distress, Urgency and Safety alerting using Digital Selective Calling (DSC).