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radio altimeter
An altimeter that uses a narrow radio or radar beam directed at the ground
radio compass
An early form of radio direction finder that used commercial radio stations
radio alarm clock
A combination radio and alarm clock.
radio cassette recorder
A combination radio and cassette recorder.
radio cassette player
A combination radio and cassette player.
radio-controlled car
a model car controlled by radio waves from a battery-powered remote control unit.
giant radio galaxy
(astronomy) a very large radio galaxy; a double radio source having an overall projected linear length exceeding 2 megaparsecs (or more specifically, 2×h₅₀⁻¹ Mpc)
citizens' band radio
(radio) A publicly available system of short-distance radio communications, usable by individuals or businesses without a license.
wind-up radios
plural of wind-up radio
wind-up radio
A portable radio which can operate where no external power source is available, and is activated by a winding mechanism.