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 ?
With Razorsecure and Callsign, Breed Reply reaffirms its presence in the security arena, whilst Senseye moves them into prognosis as a service in the rapidly growing Industrial IoT.
Annual rate of callsign confusion events resulting from recognition errors between pilots and ATC was 4.
Ryanair was once again amongst the best performing airlines for minimising level busts, reducing callsign confusion incidents and compliance with ATC procedures (as set out below).
Air Serbia, which will be launched today is not a new start up, instead, it is the legal successor to Jat Airways and will continue to use Jat's international agreements, airport slots and its callsign and IATA designator.
8220;After receiving and evaluation hundreds of entries, we'd like to congratulate our winner, Adam Donaldson, callsign KC9VIV, of Weston, Wisconsin,” said Jeff Demers, owner, Amateur Radio Supplies.
At least a dozen private jets, including the host's with its personal callsign N4T, brought guests to nearby Tivat airport.
The Sea King, callsign "Rescue 122", was scrambled at 2.
After all, who needs a new callsign like the one I have?
NAV CANADA's Code Callsign Distribution System Replacement (CCDS-R) matches the "Squawk" code transmitted by aircraft with their filed flight plan.
One controller, callsign Manilla 34, said he warned the pilots they were near "friendly forces" before they opened fire.