Subelement G: Inspections, Installations and Instruments— Topic :
Question 48G4
Element 9 (GMDSS Maintainer)What is the easiest way to test the Inmarsat-C terminal for proper operation?
Explanation
Sending a brief test message to your own Inmarsat-C terminal (or a registered address associated with it) is the easiest and most comprehensive test. This action confirms the entire communication chain: your terminal's ability to transmit, the satellite link, the land earth station (LES) processing, and your terminal's ability to receive. It verifies the functionality of the transmitter, receiver, antenna, and the network registration without involving external parties or burdening emergency services.
Options B and C are inappropriate as they would involve unnecessary communication with RCCs (Rescue Coordination Centers) or other vessels, which should be reserved for safety-related or urgent traffic. Option D, using an internal POST (Power-On Self-Test), only checks the terminal's internal hardware and software; it does not verify the RF components (transmitter/receiver), antenna, or connectivity to the satellite network.
Related Questions
48G2 What log entries are required after passing the annual inspection?48G3 What battery tests are made during the annual inspection?48G5 After the station has successfully passed the survey what document is issued to the vessel?48G6 Which of the following is NOT a required VHF test during an annual inspection?49G1 A 4 digit multi-meter with an accuracy of 0.15% and 2 counts is set on the 6 volt scale. What range of readings may be expected when measuring a 5 volt DC source?