GMDSS. FCC Test 48 – Online Maritime Tests

Which statement regarding GMDSS MF/HF Transceiver frequency set-up is true:

Some consoles allow both manual keypad entry and ITU channel recall from a database or memory, while others do not.
Transmit and receive frequencies must always be recalled from a database or memory.
Transmit and receive frequencies must always be manually entered from the keypad.
None of the above.

To set-up the MF/HF Transceiver for a telex call to a coast station, the operator must:

To set-up the MF/HF Transceiver for a voice call to a coast station, the operator must:

How are paired SSB frequencies normally used?

Which statement regarding GMDSS MF/HF Transceiver frequency set-up is true:

Transmit and receive frequencies may be manually entered from the keypad.
Depending on the manufacturer, either a
All consoles allow both manual keypad entry and ITU channel recall from a database.
ITU channels must be recalled from a database or memory.

An ITU simplex channel frequency assignment is defined as:

Transmit and receive frequencies are different regardless of emission mode.
Transmit and receive frequencies must be different.
Transmit and receive frequencies may be different, depending on whether communications are ship-shore or ship to ship.
Transmit and receive frequencies must be identical.

An ITU duplex channel frequency is defined as:

Transmit and receive frequencies must be different.
Transmit and receive frequencies may be different, depending on whether communications are ship-shore or ship to ship.
Transmit and receive frequencies may be different, depending on whether communications are ship-shore or ship to ship.
Transmit and receive frequencies must be identical.

For general communications purposes, simplex frequencies are:

How are paired NBDP frequencies normally used?

These are normally used for ARQ communications with coast radio stations.
These are normally used for FEC communications with coast radio stations.
These are normally used for DSC communications with coast radio stations.
These are normally used only for distress communications to limit channel interference.

For general communications purposes, paired frequencies are:

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