Radio Operator Responsibilities Flashcards

What is the purpose of the GMDSS system overall?

Answer: To ensure vessels in distress can alert rescue services automatically using multiple technologies regardless of location

GMDSS (Global Maritime Distress and Safety System) was designed to ensure any vessel in distress anywhere in the world can automatically alert rescue services using a combination of DSC, EPIRB, SART, NAVTEX and satellite systems.

Which IMO Convention made GMDSS mandatory for commercial vessels?

Answer: SOLAS (Safety of Life at Sea Convention)

GMDSS was mandated by the IMO's SOLAS Convention. From 1999, SOLAS required all commercial vessels over 300 gross tonnes on international voyages to carry compliant GMDSS equipment.

Does the SRC cover MF/HF (medium and high frequency) radio operation?

Answer: No — MF/HF operation requires the Long Range Certificate (LRC)

The SRC covers VHF radio only. To operate MF/HF radio equipment (used for longer range communications and offshore passages), the Long Range Certificate (LRC) is required.

What is the LRC (Long Range Certificate) and when is it needed?

Answer: It qualifies operators to use MF/HF and satellite GMDSS equipment, needed for offshore and ocean passages

The LRC (Long Range Certificate) authorises operation of MF/HF radio and INMARSAT satellite communications. It is required for vessels making offshore or ocean passages beyond reliable VHF range where longer-range GMDSS equipment is carried.

What is the operator's responsibility when taking over radio watch?

Answer: Check that Channel 16 and 70 are being monitored and that no distress traffic is in progress

When taking over a radio watch, the new operator should verify that Channel 16 and 70 are being monitored, check the radio log for any recent distress traffic, and ensure the equipment is functioning correctly.

Who has ultimate authority over radio communications during a SAR operation in UK waters?

Answer: HM Coastguard as the Maritime Rescue Coordination Centre (MRCC)

HM Coastguard operates as the Maritime Rescue Coordination Centre (MRCC) for UK waters and has ultimate authority over all radio communications during a SAR operation, including directing vessels, imposing radio silence, and coordinating resources.