Subelement A: Rules & Regulations— Topic 1: Equipment Requirements
Question 1-1A4
Element 1 (MROP)What equipment is programmed to initiate transmission of distress alerts and calls to individual stations?
Explanation
The Digital Selective Calling (DSC) controller is the dedicated equipment for initiating digital distress alerts and calls to individual stations or groups. DSC is a component of the Global Maritime Distress and Safety System (GMDSS), allowing vessels to transmit pre-formatted digital messages over VHF, MF, or HF radio. Users program the DSC controller with their Maritime Mobile Service Identity (MMSI) and can trigger a distress alert or send a direct call to another station by entering their MMSI.
NAVTEX (A) is a receiver for broadcasting maritime safety information, not a transmitter. GPS (B) provides positioning data, which can be *fed into* a DSC controller, but it does not initiate radio transmissions itself. A Scanning Watch Receiver (D) is designed to listen to multiple frequencies, not to transmit or initiate calls.
Related Questions
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