GMDSS. Systems. Test 15 – Online Maritime Tests

What is the minimum number of portable two way VHF walkie talkies for use in survival craft, that should be carried onboard vessels which comply with GMDSS regulations?

3 sets
1 set
2 sets
There is no requirement to carry them.

The cost for a telephone conversation via the Inmarsat-A system are calculated:

Don't know
per minute, with a minimum of three minutes
per kilobyte or parts of it
per minute or parts of it

A message is send by the Inmarset C-set. The land earth station will:

never send a positive delivery notification (PDN) to the sender. The addressed will have to confirm the message through the ground-station and request for further information, if desired
only send a positive delivery notification (PDN) to the sender if the sender requested, so in the send menu
automatically send a positive delivery notification (PDN) to the sender
Don't know

The display of the DSC-controller on board is showing the following lines: RX: 002442000 ; Ch87 ; D Sellcall Routine We

Radio telephony-channel 7 in the 8 MHz band
Don't know
Channel Delta of the coast-station
VHF-channel 87

Via Inmarsat-C a message is sent to an Inmarsat-C mailbox with a positive delivery notification (PDN). The groundstation will:

send no PDN
send a PDN, if the message has arrived in the mailbox
Don't know
send a PDN, as soon as the message is collected from the mailbox

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