GMDSS. FCC Test 32 – Online Maritime Tests

How are NAVTEX broadcasts transmitted?

Using FEC techniques.
NAVTEX is transmitted by commercial coast radio stations following their traffic lists.
No more often than every two hours and should immediately follow the radiotelephone silent periods.
NAVTEX is transmitted only when an urgency or distress broadcast is warranted.

The NAVTEX message header contains the following?

A two-digit number (01-99) indicates the NAVTEX message category.
Message numbers include a date/time group along with the transmitting station's numerical ID.
A single letter (A-Z) indicates the NAVTEX transmitting station.
None of these.

Which message subject matter can be programmed to be rejected or disabled by the operator of a NAVTEX receiver?

Which information determines if a NAVTEX message is to be rejected?

Transmitter identity (numerals from 1 to 26 identifying transmitting station within the NAVAREA).
Only messages having a serial number 00 are rejected.
Subject indicator (single letter from A to Z indicating the type of message).
The Answerback of the receiving station has not been entered in the NAVTEX receiver.

What statement 'is true' regarding the control the operator can exercise over the NAVTEX receiver's operation?

The operator can set the unit to reject all messages except navigation, weather and sea warnings, and search and rescue messages.
To reduce the number of messages, the operator can select code 00 to indicate 'not in coastal passage'.
The operator can set the unit to automatically reject any and all categories of messages if the ship desires to not receive them.
Upon entering a coastal area for the first time, the operator enters code KK to indicate 'ready to receive NAVTEX'.

What action should a GMDSS Radio Operator take when SafetyNET distress or urgency messages are received by the vessel's EGC receiver?

No immediate action is required as an audible tone will be generated at the beginning and end of the transmission and a paper printout of the message will be generated.
No immediate action is required by the operator since the transmission will be automatically acknowledged by the receiving vessel.
Aural and visual alarms are activated, and require manual deactivation.
A periodic alarm tone will be heard until the radio operator prints the message from the unit's memory.

Which of the following message categories cannot be disabled by the GMDSS Radio Operator?

Which determines whether a NAVTEX receiver does not print a particular type of message content?

The subject indicator matches that programmed for rejection by the operator.
The serial number and type of message have already been received.
Both answers a
The transmitting station ID covering your area has not been programmed for rejection by the operator.

NAVTEX broadcasts are sent:

Review Answers