DSC radio and position

[Jimbob]

When you have a DCS radio linking into the GPS to give your position, is this transmitted as part of the message on channel 70 when you have a mayday situation.. i should know this?

[Steve_B]

yes and the message is repeated until acknowledged by Coastguard.

You may then be called or transmit further info on channel 16

[Trickdog]

Yes the DSC mayday transmission includes your MMSI number and vessel position. The position data comes from the GPS if linked to the radio, otherwise your co-ordinates have to be input manually.