Element 7: GMDSS Radio Operating Practices

effective 8/01/2006

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7-A-047: SAR/MCC/RCC: Systems & Procedures

7-47F1: Which action should the GMDSS radio operator take in a Distress situation when embarking in survival craft?

Switch on EPIRB and SART immediately and leave on.

EPIRB and SART switched on manually prior to embarking; remain aboard vessel in Distress.

Notify RCC (Rescue Coordination Center) through VHF DSC in portable equipment.

Communicate via Inmarsat-C from the survival craft.



7-47F2: Which is the key part of the search and rescue system under GMDSS?

COSPAS/SARSAT satellites

AMSAT satellites

NASA satellites

U.S. Space Agency satellites



7-47F3: Which statement is true regarding the COSPAS-SARSAT system?

All of these

EPIRBs are satellite beacons used aboard vessels as alerting devices.

Signals received by low altitude, near-polar orbiting satellites are relayed to a ground receiving station, called a Local User Terminal.

Doppler shift is used to locate the beacons.



7-47F4: Which statement is NOT true regarding the COSPAS-SARSAT system?

May be used to transmit public correspondence.

EPIRBs are satellite beacons used as alerting/locating devices.

Locates Distress beacons transmitting on 406 MHz.

Doppler shift is used to locate the beacons.



7-47F5: What information is transmitted by a 406 MHz EPIRB alert?

A unique Hexadecimal I.D. number.

Vessel position and nature of Distress.

Vessel name and identification.

None of the above



7-47F6: Which statement is true regarding the COSPAS-SARSAT system and EPIRB operations?

Both a) and c) are true

The EPIRB’s position is calculated by the system and passed to the RCC.

The EPIRB transmits a unique Hex I.D. and vessel position that is passed to the RCC.

The EPIRB transmits a unique Hex I.D. that is passed to the RCC.





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7-A-046: Survival Craft Transceiver
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Element 7: GMDSS Radio Operating Practices
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