GMDSS Maintainer: Element 9

1. A You must RESET the DSC memory by holding down two buttons as described in the user manual.
2. B You can never change a number, once one is already programmed.
3. C Re-register the old MMSI with the new owner and make no programming changes to the radio.
4. D Contact the manufacturer for action to clear the MMSI memory and accept the new number.

Tip: press A-D to answer