GMDSS. FCC Test 16

Properly formatted DSC transmissions can request which of the following emissions for follow on communications?

A DSC Distress alert:

DSC transmissions are received:

What is the action that a GMDSS Radio Operator should take when a DSC distress alert is received?

The Operator should immediately set continuous watch on VHF channel 70.
The Operator should immediately set continuous watch on the radiotelephone frequency that is associated with frequency band on which the distress alert was received.
No action is necessary, as the DSC control unit will automatically switch to the NBDP follow-on communications frequency.
The Operator should immediately set continuous watch on the NBDP frequency that is associated with frequency band on which the distress alert was received.

Which of the following statements concerning DSC equipment is true?

The GMDSS Radio Operator is responsible for properly selecting HF DSC guard channels.
All equipment must be type accepted.
All of the above.
The vessel's navigational position must be updated, either automatically or manually, no less often that every four (4) hours.

What does the DSC control unit do if the GMDSS Radio Operator fails to insert updated information when initiating a DSC distress alert?

It will initiate the DSC distress alert, and default information will automatically be transmitted.
It will abort the transmission and set off an audible alarm that must be manually reset.
It will initiate the DSC distress alert but, as no information will be transmitted, rescue personnel will not be able to identify the vessel, its position, or its situation.
It will initiate the DSC distress alert, but any station receiving it will have to establish contact with the distressed vessel to determine its identity, position, and situation.

DSC transmissions are encoded:

When sending a DSC call:

None of these.
Vessel?s position will automatically be sent.
Vessel?s position will automatically be sent if the vessel is sending a ?Distress Hot Key? alert.
Vessel?s MMSI will indicate its ocean region.

Review Answers