SomeSailor
Guru
- Joined
- Oct 22, 2011
- Messages
- 784
- Vessel Name
- Honey Badger
- Vessel Make
- 42' CHB Europa
I am not sure what added functionality AIS transponder brings to the SAR situation that a DSC radio doesn't already supply. Can any of the AIS users enlighten me? Both are VHF based so are limited to that range.
DSC only transmits your MMSI, position and a DSC alert message. AIS transmits continuously and sends much more information. Even when not in trouble, your position, bearing, speed, destination, status, callsign, vessel description and is being reported to all around you, as well as the Coast Guard and VTS.