radio frequency
nounDefinition of radio frequency
: any of the electromagnetic wave frequencies that lie in the range extending from below 3 kilohertz to about 300 gigahertz and that include the frequencies used for communications signals (as for radio and television broadcasting and cell-phone and satellite transmissions) or radar signals
Examples of radio frequency in a Sentence
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The city of Chicago is investigating an unauthorized audio transmission on its police radio frequencies Wednesday night. — Chicago Tribune Staff, chicagotribune.com, "Chicago investigating 'rogue radio' incident on police radio channels," 5 July 2018 Those figures are then transmitted via radio frequencies to city computers, which tally a customer's monthly water bill. — Stephen Hudak, OrlandoSentinel.com, "Apopka cuts water loss with new 'smart' meters as part of $4.6 million upgrade," 11 June 2018 Since then, the machine has tirelessly controlled the heating and AC systems at the 19 schools under its jurisdiction using a system that sends out commands over short-wave radio frequencies. — Eric Limer, Popular Mechanics, "One Ancient Commodore Amiga Runs the Heat and AC for 19 Public Schools," 12 June 2015 Firms such as Energous and Ossia send power using radio frequencies, while rival Wi-Charge uses infrared light that's closer to lasers. — Geoffrey A. Fowler, chicagotribune.com, "Whoa! Meet the future phones that fold up, have 9 cameras and charge over thin air.," 6 July 2018 For both its launches and landings, SpaceX must get a license from the FCC to use certain radio frequencies to communicate with the rocket. — Loren Grush, The Verge, "SpaceX may finally land one of its rockets on the California coast later this year," 6 July 2018 Firms such as Energous and Ossia send power using radio frequencies, while rival Wi-Charge uses infrared light that's closer to lasers. — Geoffrey Fowler, courant.com, "Future Phones: They Fold Like Napkins, Have 9 Cameras, Charge Over Thin Air," 6 July 2018 Investigators were working with an Air Traffic Control investigator out of Washington, D.C., who was providing Banning with radar data, communication, and the radio frequencies both planes were using. — Laurel Andrews, Anchorage Daily News, "Alaska pilot killed in midair crash remembered as respected flight instructor," 15 June 2018 Even in this catastrophe, the police and firefighters operated on separate radio frequencies, replicating the laddish rivalries that prevailed after a 1993 bombing at the trade center. — New York Times, "The Last 9/11 Fire Chief Bows Out," 10 July 2018These example sentences are selected automatically from various online news sources to reflect current usage of the word 'radio frequency.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
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