Are vessels that must have GMDSS equipment required to monitor channel 16?

The requirement for vessels equipped with GMDSS (Global Maritime Distress and Safety System) equipment to monitor specific channels stems from the importance of ensuring effective communication, particularly for distress situations. While vessels are required to monitor both channel 16 and channel 70, the critical point noted in the correct response emphasizes that GMDSS-equipped vessels have designated frequencies for distress and safety communications.

Channel 16 (156.800 MHz) is the international distress frequency for VHF and is essential for general distress calls and urgency messages. However, channel 70 is intended for Digital Selective Calling (DSC) purposes, which allows vessels to send automated distress alerts without requiring voice communication. Additionally, MF 2187.5 kHz serves a similar role for ships operating in international waters.

The answer stating that these vessels must monitor channel 70 and MF 2187.5 reflects the emphasis on using the GMDSS equipment’s capabilities to enhance safety communications, particularly in emergencies. This monitoring ensures that vessels can receive distress alerts and communicate effectively within the GMDSS framework, enhancing overall maritime safety.