RYA SRC DSC Procedures

Question 1

What does DSC stand for in VHF marine radio?

Accepted Answer

Digital Selective Calling

Answer

Direct Signal Communication

Answer

Distress Signal Code

Answer

Digital Safety Channel

Question 2

Which VHF channel is used exclusively for DSC distress alerting?

Accepted Answer

Channel 70

Answer

Channel 16

Answer

Channel 67

Answer

Channel 06

Question 3

What information is automatically included in a DSC distress alert?

Accepted Answer

MMSI number, nature of distress, and vessel position if GPS-linked

Answer

Vessel name, port of registry, and crew list

Answer

Owner's contact details and insurance information

Answer

Departure port, destination, and ETA

Question 4

After sending a DSC distress alert, what must you do immediately?

Accepted Answer

Switch to Channel 16 and transmit a MAYDAY voice call

Answer

Wait silently on Channel 70 for acknowledgement

Answer

Send a second DSC alert on Channel 16

Answer

Switch off the radio to preserve battery power

Question 5

How often should a DSC distress alert be repeated if no acknowledgement is received?

Accepted Answer

After 3.5 to 4.5 minutes

Answer

After 30 seconds

Answer

After 10 minutes

Answer

After 1 hour

Question 6

What is a DSC individual call used for?

Accepted Answer

Calling a specific vessel or coast station by their MMSI number

Answer

Broadcasting to all vessels in the area

Answer

Sending a distress alert to the coastguard

Answer

Testing the DSC controller