call sign

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call sign

[′kȯl ‚sīn]

Call Sign


a set of characters (code symbols, letters, or numbers) or an audible signal (word, musical phrase, bird call) that serves as the distinctive sign of a radio station—usually for the purpose of identification of the station during reception. As a rule, it is transmitted at the beginning of each period of the station’s operation.

The set of symbols in a call sign identifies the station’s national affiliation. The initial characters are established by the International Radio Regulations. The USSR, for example, uses in this position the letters U and R and such combinations as 4J, 4K, and 4L. The complete structure of a call sign depends on the class (purpose) of a station and differs for broadcasting, official, and amateur radio stations. Call signs for amateur radio stations have a complicated makeup and contain the most information. They often indicate through a code the station’s operating wave band (shortwave or ultrashortwave), the station’s group (a collective or individual station) and site (in the USSR—the Union republic, oblast, and amateur-radio region), and the individual letter symbol or registration number of the station.


call sign

Any combination of characters or pronounceable words used primarily for establishing and maintaining communications. It identifies a communication facility, a command, an authority, an activity, or a unit. A call sign should have at least two syllables (e.g., Red 1, Pan Am 550).
References in periodicals archive ?
Over the past year, legislators and regulators have learned a lot about these popular plans and this week's CMS Part D Call Letter should assuage seniors who fear their plans might still be at risk," said PCMA President and CEO Mark Merritt .
According to a notification issued here Monday, call letters are being issued to all the candidates on their postal addresses.
The Call Letter provides guidance to plan sponsors on how to deliver programs within Medicare Part C and D.
091-9213563/9212897/9214131 or through personal visit in case they do not received the call letter up till February 24 for receiving duplicate call letter.
1 FM, which was Techno-Pop Mars FM and was responsible for the station's successful format and call letter change to Jazz-FM.
All those who have not received the call letter are also advised to reach on due time for participation in entry test and their participation would be decided on the spot according to the available record.
Only those candidates who would score at-least 70% marks in written test would be issued call letters for interview, Dr Zia said adding that before being admitted to test, the students would be required to present original CNIC.
The test call letters have been issued to all the eligible candidates.
9 rating, while KEIB, which changed its call letters to reflect Limbaugh's slogan, "excellence in broadcasting," has maintained about a 0.
Oregon Life: The call letters for one of the local radio stations that airs "A Prairie Home Companion" were misstated on Friday's Page D12.
Nashville was not always synonymous with Country Music, especially in the early 1920's when Edwin Craig started WSM as a way to advertise for its owner National Life and Accident Insurance Company (taking its call letters from the company's slogan: "We Shield Millions").
Simulcasting under the legendary KKGO call letters, the two AM stations spin an adult standards format dubbed ``Unforgettable,'' which means Mathis, Sinatra, Fitzgerald and Bennett.