radio beam

American  

noun

1. beam.

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radio beam British  

noun

1. Sometimes shortened to: beam.  a narrow beam of radio signals transmitted by a radio or radar beacon, radio telescope, or some other directional aerial, used for communications, navigation, etc

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Etymology

Origin of radio beam

First recorded in 1920–25

Example Sentences

Dr Taylor described the radio beams from pulsars as being like light beams from a lighthouse.

From BBC

To detect the spiraling pairs, observers train large radio telescopes on dozens of pulsars—collapsed stars emitting radio beams that, as the pulsar spins, appear as pulses with clocklike regularity.

From Science Magazine

The stars, collapsed stellar remnants made of tightly packed neutrons, are called pulsars because as they spin, they emit radio beams that sweep past Earth like a lighthouse.

From Science Magazine

Those fields power pulsars, which sweep a radio beam past Earth at regular intervals as they spin.

From Science Magazine

Connery answers diffidently: “A little. It’s throwing the gyroscopic controls of a guided missile off balance with a … a radio beam or something, isn’t it?”

From New York Times