Test or repair mobile or stationary radio transmitting and receiving equipment and two-way radio communications systems used in ship-to-shore communications and found in service and emergency vehicles.
Test equipment functions such as signal strength and quality, transmission capacity, interference, and signal delay, using equipment such as oscilloscopes, circuit analyzers, frequency meters, and wattmeters.
Install, adjust, and repair stationary and mobile radio transmitting and receiving equipment and two-way radio communication systems.
Examine malfunctioning radio equipment to locate defects such as loose connections, broken wires, or burned-out components, using schematic diagrams and test equipment.
Remove and replace defective components and parts such as conductors, resistors, semiconductors, and integrated circuits, using soldering irons, wire cutters, and hand tools.
Calibrate and align components, using scales, gauges, and other measuring instruments.
Turn setscrews to adjust receivers for maximum sensitivity and transmitters for maximum output.
Test emergency transmitters to ensure their readiness for immediate use.
Mount equipment on transmission towers and in vehicles such as ships or ambulances.
Insert plugs into receptacles and bolt or screw leads to terminals to connect equipment to power sources, using hand tools.
Test batteries, using hydrometers and ammeters, and charge batteries as necessary.