Initials used to identify a radio or television station.

The FCC Identification for a certain station. Almost always four-letters long, although some old station are allowed to keep their three-letter long calls. West of the Mississippi River, calls must start with a K, while east of the Mississippi River, calls must start with a W. In Mexico, they start with an X, and are five-letters long, while in Canada they start with a C, and four-letters long. At the top of each hour a station must identify it's call letters and city of license. Example: "KTAR Pheonix." City of License The city that a particular radio station was intended to serve. For example, KKAT's city of license is Ogden. They're intended to serve Ogden. However, to make more money, they also serve Salt Lake City and Provo.

Letters assigned to broadcast stations by the FCC, by which stations identify themselves. In general, stations east of the Mississippi River have call letters beginning with W; those west of the Mississippi have call letters beginning with K.

Kilohertz Stop Set