What do I need to do to be Class-M compliant?.

In simple terms, to be classified as a Class-M-compliant MOB, your device must be fitted with a GNSS positioning device and, most importantly, a transceiver operating on VHF DSC channel 70.

The DSC receiver allows vessels that have detected your alarm to ‘acknowledge’ it. A feature that allows remote deactivation of your MOB device, either in the event of a false alarm or after your alarm has been actioned. This stops further DSC transmission, although the MOB will continue to broadcast the unit’s location coordinates via AIS.

The FAQ above is our interpretation of the ECC legislation highlighted in document https://docdb.cept.org/document/28560