Element 7: GMDSS Radio Operating Practices

effective 8/01/2006

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7-A-045: EPIRB: Homing & Locating Signals

7-45F1: Which of the following would best be used for visual detection of a distressed vessel?

An EPIRB's strobe light.

A 9-GHz SART's beacon.

A 121.5-MHz EPIRB beacon.

A 406-MHz EPIRB beacon.



7-45F2: Which piece of required GMDSS equipment is the primary source of transmitting locating signals?

An EPIRB transmitting on 406 MHz.

Radio Direction Finder (RDF).

Survival Craft Transceiver.

A SART transmitting on 406 MHz.



7-45F3: What may be used as a homing signal by the search and rescue vessels in the immediate vicinity of the ship in Distress?

A 121.5 MHz emergency transmitter in a satellite EPIRB.

Flare gun

Strobe Light

406 MHz signal from a satellite EPIRB.



7-45F4: What part of a satellite EPIRB may function as a visual aid to rescue vessels?

Strobe light

A 121.5 MHz emergency transmitter in a satellite EPIRB.

406 MHz signal from a satellite EPIRB.

Loud beeping tone emitted by the unit, once activated.



7-45F5: What is an example of a locating signal?

A float-free EPIRB

SSB phone traffic

Ship to shore transmissions

Loran C



7-45F6: Which device provides the main means in the GMDSS for locating ships in Distress, or their survival craft?

Satellite EPIRBs

Radio Direction Finder

MF/HF DSC

VHF homing device





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Element 7: GMDSS Radio Operating Practices
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