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.
<ul><li>Examine malfunctioning radio equipment to locate defects such as loose connections, broken wires, or burned-out components, using schematic diagrams and test equipment.</li><li>Repair circuits, wiring, and soldering, using soldering irons and hand tools to install parts and adjust connections.</li><li>Install, adjust, and repair stationary and mobile radio transmitting and receiving equipment and two-way radio communication systems.</li><li>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.</li><li>Calibrate and align components, using scales, gauges, and other measuring instruments.</li><li>Mount equipment on transmission towers and in vehicles such as ships or ambulances.</li><li>Turn setscrews to adjust receivers for maximum sensitivity and transmitters for maximum output.</li><li>Remove and replace defective components and parts such as conductors, resistors, semiconductors, and integrated circuits, using soldering irons, wire cutters, and hand tools.</li><li>Test emergency transmitters to ensure their readiness for immediate use.</li><li>Insert plugs into receptacles and bolt or screw leads to terminals to connect equipment to power sources, using hand tools.</li><li>Monitor radio range stations to detect transmission flaws and adjust controls to eliminate flaws.</li><li>Test batteries, using hydrometers and ammeters, and charge batteries as necessary.</li></ul>