GMDSS Element 7 - I

59I1 Which of the following actions should be taken once the vessel is berthed and will not leave port again for several weeks?

• A. The GMDSS Radio Operator must notify the NCS that the vessel will be off-line, and wait for the NCS to acknowledge with a confirmation number that must be logged.

• B. The Inmarsat-C system can be powered down without taking additional steps once the GMDSS Radio Operator has ensured that all incoming SafetyNETTM messages have been received and stored.

• C. The GMDSS Radio Operator may log out of the Inmarsat-C system and turn the power off (unless the vessel decides to leave the unit on during the port stay.)

• D. The GMDSS Radio Operator must transmit an all-ships alert, to notify vessels within the satellite's footprint that the vessel will be off-line.

59I2 What action should always be taken before powering down an Inmarsat-C terminal or leaving one satellite footprint for another?

• A. An Inmarsat-C system must never be powered down or mandatory MSI messages will be lost

• B. Send a message to the NCS advising arrival in port or request the NCS log your terminal in with the new satellite.

• C. No action is required –- the terminal will automatically log in with the new satellite when the NCS common channel is detected or after power up.

• D. Log out with the current NCS to inform them you are off the air or to enable a proper log in procedure with the new satellite.

59I3 With most Inmarsat-C systems what should the indicator lamps do when powering up?

• A. All lamps should illuminate in a particular sequence, as per the operator’s manual

• B. The power on lamp should illuminate. Other lights remain off until a message is received

• C. All lamps should light and stay illuminated.

• D. All lamps should light except the RED light.

59I4 What is the importance of a successful log in indication, after power-up, on an Inmarsat-C terminal?

• A. The antenna Azimuth and Elevation controls are correctly adjusted.

• B. The terminal is enabled for routine incoming and outbound traffic

• C. The receiver gain is properly adjusted for maximum signal.

• D. Unscheduled EGC MSI messages can no longer be received.

59I5 On an Inmarsat-C system, what is the importance of a successful “SYNC” indication after power up?

• A. The system is not yet locked on to the NCS signal until a log-in command is performed.

• A. The system is not yet locked on to the NCS signal until a log-in command is performed. B. Sufficient signal strength on the NCS common channel is being received.

• C. There is company telex traffic being received on the NCS common channel.

• D. The NCS has confirmed log-in status is on so routine traffic can be sent and received.

59I6 On an Inmarsat-C system an incoming EGC alarm sounds:

• A. When first powered on and when receiving Distress traffic.

• B. When receiving Distress traffic and all of the BALD MSI messages.

• C. To draw the operator’s attention to an unscheduled Distress or Urgency message.

• D. To indicate the loss of NCS CC sync -- preventing the reception of unscheduled EGC messages.

60I1 Which satellite(s) would most likely be selected for use when the vessel is operating off the eastern shore of the United States?

• A. IOR

• B. AOR-W

• C. POR

• D. Either AOR-W or IOR will work.

60I2 Which satellite should be chosen when the vessel is operating between Japan and the Bering Sea?

• A. AOR-W

• B. IOR

• C. POR

• D. AOR-E

60I3 Which longitude corresponds to the AOR-W satellite for Inmarsat-C communications?

• A. 25.0 E

• B. 143.5 E

• C. 54.0 W

• D. 98.0 W

60I4 Which longitude corresponds to the AOR-E satellite for Inmarsat-C communications?

• A. 54.0 W

• B. 25.0 E

• C. 143.5 E

• D. 98.0 W