The Radio Portal Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves, and received by another antenna connected to a radio receiver. Radio is widely used in modern technology, in radio communication, radar, radio navigation, remote control, remote sensing, and other applications. In radio communication, used in radio and television broadcasting, cell phones, two-way radios, wireless networking, and satellite communication, among numerous other uses, radio waves are used to carry information across space from a transmitter to a receiver, by modulating the radio signal (impressing an information signal on the radio wave by varying some aspect of the wave) in the transmitter. In radar, used to locate and track objects like aircraft, ships, spacecraft and missiles, a beam of radio waves emitted by a radar transmitter reflects off the target object, and the reflected waves reveal the object's location. In radio navigation systems such as GPS and VOR, a mobile navigation instrument receives radio signals from navigational radio beacons whose position is known, and by precisely measuring the arrival time of the radio waves the receiver can calculate its position on Earth. In wireless radio remote control devices like drones, garage door openers, and keyless entry systems, radio signals transmitted from a controller device control the actions of a remote device. (Full article...) Selected article -Flywheel, Shyster, and Flywheel is a situation comedy radio show starring two of the Marx Brothers, Groucho and Chico, and written primarily by Nat Perrin and Arthur Sheekman. The series was originally broadcast in the United States on the National Broadcasting Company's Blue Network, beginning on November 28, 1932, and ending on May 22, 1933. Sponsored by the Standard Oil Companies of New Jersey, Pennsylvania and Louisiana and the Colonial Beacon Oil Company, it was the Monday night installment of the Five-Star Theater, an old-time radio variety series that offered a different program each weeknight. Episodes were broadcast live from NBC's WJZ station in New York City and later from a sound stage at RKO Pictures in Los Angeles, California, before returning to WJZ for the final episodes. The program depicts the misadventures of a small New York law firm, with Groucho as attorney Waldorf T. Flywheel (a crooked lawyer) and Chico as Flywheel's assistant, Emmanuel Ravelli (a half-wit whom Flywheel uses as a fall guy). The series was originally titled Beagle, Shyster, and Beagle, with Groucho's character named Waldorf T. Beagle, until a real lawyer from New York named Beagle contacted NBC and threatened to file a lawsuit unless the name was dropped. Many of the episodes' plots were partly or largely based upon Marx Brothers films. (Full article...)General images -The following are images from various radio-related articles on Wikipedia.
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