RYA SRC DSC Operations 5

Question 1

When programming an MMSI into a DSC VHF radio, who in the UK should vessels register their MMSI with?

Accepted Answer

Ofcom

Answer

In the UK, vessel MMSIs are allocated and registered through Ofcom, which is the communications regulator responsible for maritime radio licensing.

Question 2

A DSC individual call to another vessel is typically followed by voice communication on which channel?

Accepted Answer

A working channel agreed in the DSC call or by prior arrangement

Answer

After a DSC individual call, both vessels switch to a working channel that is proposed in the DSC message or agreed by prior arrangement.

Question 3

What does a flashing DSC distress alert indicator on your radio require you to do?

Accepted Answer

Acknowledge the alert and prepare to render assistance or relay

Answer

When a DSC distress alert is received, the operator must acknowledge it and assess whether to render assistance or relay the alert to the coast guard.

Question 4

Which DSC call category is used when a person has fallen overboard and immediate danger to life is present?

Accepted Answer

Distress

Answer

A man overboard situation involving immediate danger to life warrants a Distress category DSC call and a MAYDAY voice call.

Question 5

A DSC group call is sent using what type of identifier?

Accepted Answer

A group MMSI shared by vessels in a specific fleet or area

Answer

A group MMSI is a special MMSI programmed into vessels belonging to a specific group, such as a ferry fleet, allowing DSC calls to reach all group members simultaneously.

RYA SRC Practice Test

RYA SRC Practice Test

RYA SRC DSC Operations 5