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radio set[′rād·ē·ō ‚set]
a set of equipment for the transmission and/or reception of information by means of radio waves. Depending on the function, a radio set may be classified as a transmitting set (for example, a unit in a radio transmission center), a receiving set, or a radio transmitter-receiver.
The basic equipment in a transmitting set includes a radio transmitter, an antenna, a connecting feeder, and a power supply. The basic equipment in a receiving set includes a radio receiver, an antenna, a feeder, and a power supply. In addition, a transmitting set may have equipment for reproducing information to be transmitted from a storage medium, such as magnetic tape, and a receiving set may have equipment for recording the received signals or for converting the signals into sound or a visual image.
Radio sets are also classified according to the nature of the service in which they are used, whether permanently or temporarily. Thus, radio sets may be employed in fixed service (communications between established points), mobile service (communications between mobile and fixed points or between mobile points), broadcasting service, or radio-navigation service.
N. I. ALPATOV