Telemetry by use of radio waves.

An alarm clock that includes a radio; a radio alarm clock

(physics) The energy transmitted by radio-frequency electromagnetic radiation

(medicine) A surgical instrument that uses a high-frequency electric arc to cut through or cut away tissue and at the same time sterilize the edges of the wound and seal cut blood vessels.

The location of a radio transmitter by taking bearings from two receivers. / The location of a vessel or aircraft by taking bearings to two transmitters of known position.

(colloquial) The hobby of amateur radio communication.

The hobby or pastime of communicating by two-way radio, often striving for “DX” QSOs that are challenging because of distance.

A status maintained where all fixed or mobile radio stations in an area stop transmitting (sometimes limited to certain frequency bands). / The period of time during which this status exists.

Any of a line of preset buttons on a car radio used to select the station to be listened to; pressing one releases the others

A broadcast station from which radio programs are transmitted.