7-A-075: INMARSAT Distress Communications
7-75I1:
Which statement is false regarding a Distress request?
Any Distress request is automatically switched to an Inmarsat Distress working frequency.
If all satellite channels are busy, one of them will be preempted by a Distress request.
The NCS in each ocean region automatically monitors the processing of such calls by other CESs in that region, and processes calls if any anomaly exists in the system.
Any request message with Distress priority is automatically recognized by the CES and a satellite channel is instantly assigned.
7-75I2:
In what way(s) may a Distress message be initiated through Inmarsat?
By pressing dedicated key(s) for this purpose or using menu-driven features to produce a Distress priority message.
All Inmarsat units must use a dedicated key that can be pressed for immediate action.
By adding the word "Distress" in the first line of the message's preamble.
By transmitting the Distress message on the U.S. Coast Guard's dedicated monitoring channel.
7-75I3:
How is a Distress priority message ordinarily initiated on board the vessel?
By pressing one or more dedicated "Distress key" on the equipment.
By dialing the correct code on the telephone remote unit.
By contacting the CES operator, and announcing a Distress condition is in existence.
By contacting the CES operator using the radiotelephone Distress procedure "Mayday... etc.
7-75I4:
What must be done to disconnect an incoming TELEX message when voice Distress communications is desired via Inmarsat-B?
Depressing the "Distress" button automatically disconnects incoming messages.
Depress the "Reset" switch to disconnect incoming message.
It is necessary to wait until the incoming TELEX message has concluded, otherwise a system fault will occur.
Momentarily turn off the system power.
7-75I5:
Which of the following two-way communications can be made through Inmarsat without charge?
Distress traffic
A service message that advises a vessel of other ship traffic in its vicinity.
SafetyNETTM
Vessel position information when the ship's GPS fails.
7-75I6:
How is ship to shore transmission of a Distress priority message in most SESs initiated?
By provision of a "Distress button" or code in the SES.
By including the priority code in the preamble of the TELEX message.
By including the priority code in the dialed number in voice communications.
By initial voice contact with the Rescue Coordination Center.
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Color key:
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● = Unseen
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● = Weak
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● = Review
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● = Learned
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● = Incorrect answer
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