| rad | an electronic receiver that detects and demodulates and amplifies transmitted signals |
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| rad | a radio wave used to transmit and receive messages |
| rad | an object that radiates radio waves |
| rad | the entire spectrum of electromagnetic frequencies used for communications |
| rad | station for the production and transmission of radio broadcasts |
| rad | astronomical telescope that picks up electromagnetic radiations in the radio-frequency range from extra-terrestrial sources |
| rad | transmitter that is the part of a radio system that transmits signals |
| rad | an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m |
| rad | operated and guided by radio |
| rad | an aircraft without a pilot that is operated by remote control |
| rad | the entire spectrum of electromagnetic frequencies used for communications |
| rad | electronic equipment consisting of a combination of a radio receiver and a record player |