š Key Concepts
ā¢ GMDSS (Global Maritime Distress and Safety System) equipment and modern radio technology on ships
ā¢ How digital and computer-controlled systems can replace traditional, singleāpurpose radios
ā¢ The difference between a radio type and a measuring instrument like an SWR meter
š Think About
ā¢ Which option describes a kind of radio system that can change its function or frequency range by using software instead of changing hardware?
ā¢ On a vessel, would an SDR be more likely to be a communication device, a test instrument, or a type of computer memory? Why?
ā¢ Which choices sound like they belong to marine communications, and which sound more like general electronics or computing terms?
ā
Before You Answer
ā¢ Verify which option clearly names a radio rather than a meter or memory device
ā¢ Check which term is commonly used in modern digital and programmable radio systems, especially in GMDSS or other marine comms
ā¢ Make sure the choice you pick could realistically appear in a shipās radio room or integrated bridge system as primary communications gear