If a Distress relay is received from a coast station on DSC VHF channel 70, what action should be taken?

When a Distress relay is received from a coast station on DSC VHF channel 70, the appropriate action is to monitor Channel 16 for genuine Distress communications. Channel 16 is the internationally recognized distress, safety, and calling frequency for VHF radios, serving as the primary channel for all maritime distress traffic. Monitoring this channel allows the operator to receive any subsequent messages that may detail the situation or provide instructions from the coast station or other vessels in the vicinity.

It's important to understand that while Channel 70 is used for digital selective calling (DSC) and may receive Distress relays, the follow-up communications will typically transition to Channel 16 where voice communications occur. Therefore, it is critical for the safety and effective response to monitor Channel 16 after receiving a DSC alert to assist in the ongoing distress situation or to provide assistance if necessary.