Abstract
This chapter focuses on the electrical and radio equipment used in radio stations and how to operate them effectively without any hazards. The electrostatic discharges experienced by staff working near unshielded high voltage equipment, such as transmitter tank circuits, and high power antenna matching networks, do not as a general rule constitute a direct hazard but they might lead to accidents of a secondary nature. Proper earthing of radio and electrical equipment is important when working with high voltages. Conductors and equipment properly earthed can be a life saver, but when earthed through the body of a workman can be fatal. The earthing wand or stick attached to transmitters and other equipment using capacitors connected to high voltages should be fitted with an auxiliary testing probe wired in series with a suitable current limiting resistor. Batteries systems at large radio station complexes might be extensive. Battery rooms should be provided with adequate ventilation, particularly during charging, to exhaust gases and to minimize explosions.
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