What is radio




















We could talk until we're blue in the face about this quiz on words for the color "blue," but we think you should take the quiz and find out if you're a whiz at these colorful terms. Origin of radio —15; shortening of radiotelegraph or radiotelegraphy. Words nearby radio radiculopathy , radiectomy , Radiguet , radii , Radin , radio , radioacoustics , radioactinium , radioactivate , radioactive , radioactive constant. Words, movies, and fun! That sure isn't inconceivable to us.

Words related to radio transmission , wireless , radiotelegraph , radiotelegraphy , radiotelephone , receiver , telegraphy , telephony , radionics , shortwave. Neutrinos could reveal how fast radio bursts are launched Lisa Grossman September 16, Science News.

Political rhetoric may impact your hurricane preparedness Ula Chrobak September 11, Popular-Science. Which ones have to have a wire connecting the places where the people are? Which can take place without wires?

A radio transmitter some just called a transmitter is a device that can take some kind of information might be voice, or music, or computer data and convert it into the right kind of radio waves that can pass through the air or through space, without any wires. The waves are launched into space by an antenna. At another place a radio receiver often just called a receiver intercepts the radio waves from the air or space using its own antenna and changes the radio waves back into the information that the people need.

For two-way communications to take place two-way radio there must be a transmitter and a receiver at each location. Sometimes the transmitter and receiver are combined into a single box, which can then be called a transceiver.

A modern cellular telephone is an example of a transceiver. In the early days, before the word radio became common, the most important use was to allow telegraph messages to be sent long distances without the need for wires to connect the places that wanted to communicate. Once out of sight of land there was no way for a ship in distress to call for help.

So one of the earliest forms of radio was actually called wireless telegraphy. Betts, Rolling Stone , 29 Oct. First Known Use of radio Adjective , in the meaning defined at sense 1 Noun , in the meaning defined at sense 1a Verb , in the meaning defined at transitive sense 1. History and Etymology for radio Noun and Adjective short for radiotelegraphy.

Buying Guide Our team at The Usage has selected the best headphones of Learn More About radio. Time Traveler for radio The first known use of radio was in See more words from the same year. From the Editors at Merriam-Webster. Statistics for radio Look-up Popularity. Style: MLA. More Definitions for radio. Kids Definition of radio Entry 1 of 3. Kids Definition of radio Entry 2 of 3. Kids Definition of radio Entry 3 of 3. Get Word of the Day daily email! Hertz is a measurement of the number of wave cycles per second - AM is expressed in kiloHertz, while FM radio is expressed in megaHertz.

The station power affects the range of the signal, or how far it can travel. The strongest AM power allowed in the United States is 50, watts.



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