radio frequency

noun

1. 1. Abbreviations: rf.  RF. a frequency or band of frequencies that lie in the range 10 kilohertz to 300 000 megahertz and can be used for radio communications and broadcasting See also frequency band

   2. ( as modifier )

      a radio-frequency amplifier

2. the frequency transmitted by a particular radio station

radio frequency

1. A frequency of electromagnetic radiation in the range at which radio signals are transmitted, ranging from approximately 3 kilohertz to 300 gigahertz. Many astronomical bodies, such as pulsars, quasars, and possibly black holes, emit radio frequency radiation.

Example Sentences

But dense forest and tree canopies made cellphones and conventional radio frequencies useless.

From Los Angeles Times

These satellite arrays have detected radio frequency waves from a supernova 11,000 light years away.

From BBC

The meters use a longwave radio frequency to switch between peak and off peak rates, and can also be used to turn heating and hot water systems on and off.

From BBC

The radio frequencies that would be used were secret.

From Salon

A contracted helicopter team followed the radio frequency emitted by the collars and essentially chased the wolves down, sometimes netting them or darting them from the sky, according to Hunnicutt.

From Los Angeles Times

Related Words

• high frequency