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Ten-code. Ten-codes, officially known as ten signals, are brevity codes used to represent common phrases in voice communication, particularly by law enforcement and in citizens band (CB) radio transmissions. The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code. [1]
Conservative talk radio is a talk radio format in the United States and other countries devoted to expressing conservative viewpoints of issues, as opposed to progressive talk radio. The definition of conservative talk is generally broad enough that libertarian talk show hosts are also included in the definition.
The later RBDS standard implemented in the U.S. assigned the same meanings to codes 0, 1 and 31, but made no attempt to match the rest of the original RDS plan and created its own list for codes 2–22 and 30, including commercially important (in the U.S.) radio formats such as top 40, religious, country, jazz and R&B which were not in the RDS ...
Emerson Radio & Phonograph converted to military production for World War II in 1942, when it held one-sixth of the U.S. radio market. In 1943, it became a public corporation, when it offered over 40 percent of its stock to the public for $12 a share. In 1947, among its first post-war products, Emerson offered a television set with a 10-inch tube.
Radio broadcasting has been used in the United States since the early 1920s to distribute news and entertainment to a national audience. In 1923, 1 percent of U.S. households owned at least one radio receiver, while a majority did by 1931 and 75 percent did by 1937. [1] [2] It was the first electronic "mass medium" technology, and its ...
The radio spectrum is the part of the electromagnetic spectrum with frequencies from 3 Hz to 3,000 GHz (3 THz ). Electromagnetic waves in this frequency range, called radio waves, are widely used in modern technology, particularly in telecommunication. To prevent interference between different users, the generation and transmission of radio ...
68 percent of homes have at least one radio, with the average home having 1.5 radios as of 2020, both figures being steep declines from 2008. An estimated 12% of listenership to FCC-licensed AM and FM radio stations comes from means other than the actual AM or FM signal itself, usually an Internet radio stream.
The R-S-T system is used by amateur radio operators, shortwave listeners, and other radio hobbyists to exchange information about the quality of a radio signal being received. The code is a three digit number, with one digit each for conveying an assessment of the signal's readability, strength, and tone. [1] [2] The code was developed in 1934 ...
Gross rating points are a measure of the impact by a campaign using a specific medium or schedule. It quantifies impressions as a percentage of the target population, multiplied by frequency. This percentage may be greater, or in fact much greater, than 100. Target rating points express the same concept, but with regard to a more narrowly ...
X code, used by European military services as a wireless telegraphy code in the 1930s and 1940s; Z code, also used in the early days of radiotelegraph communication. Other. Morse code, is commonly used in Amateur radio. Morse code abbreviations are a type of brevity code. Procedure words used in radiotelephony procedure, are a type of radio code.