Citizens Band Radio
Citizens' Band radio (also known as CB radio) is, in many countries, a system of short-distance radio communications between individuals on a selection of 40 channels within the 27-MHz (11 m) band. Citizens' Band is distinct from the FRS, GMRS, MURS and amateur ("ham") radio. In many countries, CB operation does not require a license, and (unlike amateur radio) it may be used for business or personal communications. Like many other two-way radio services, Citizens' Band channels are shared by many users. Only one station may transmit at a time; other stations must listen and wait for the shared channel to be available.
A number of countries have created similar radio services, with varying technical standards and requirements for licensing. While they may be known by other names, such as the General Radio Service in Canada, they often use similar frequencies (26 to 28 MHz), have similar uses, and similar technical standards. Although licenses may be required, eligibility is generally simple. Some countries also have personal radio services in the UHF band, such as the European PMR446 and the Australian UHF CB.
Read more about Citizens Band Radio: Frequencies Worldwide, Current Use, Technology, Antennas, Working Skip, Freebanding and Export Radios
Famous quotes containing the words citizens, band and/or radio:
“To speak impartially, both sayings are very true: that man to man is a kind of God; and that man to man is an arrant wolf. The first is true, if we compare citizens amongst themselves; and the second, if we compare cities.”
—Thomas Hobbes (1579–1688)
“The band waked me with a serenade. How they improve! A fine band and what a life in a regiment! Their music is better than food and clothing to give spirit to the men.”
—Rutherford Birchard Hayes (1822–1893)
“A bibulation of sports writers, a yammer of radio announcers, a guilt of umpires, an indigence of writers.”
—Walter Wellesley (Red)