call sign

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call sign

[′kȯl ‚sīn]
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

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.


The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

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).
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
The watchdog device can be in STL control mode if the tube is postponed and in a waiting mode at the picked up handset or at receipt of a call signal from ATX.
A clacking, insistent, bugling call signals the approach of the cranes, silhouetted against the early morning sun.
Traditional call signals were barred to stop such empires operating after illicit mobiles in jails hit record levels - with one in 10 lags having access to a phone.
The increase is due to the availability in the au service of songs by popular singers as call signals and of low-priced handsets with built-in cameras, a KDDI official said.
Because the Sprint CDMA service has relatively good coverage in most areas, I experienced strong call signals without any dropped calls.
"He'd come up to the line and call signals in this high-pitched squeak," says Don Reynolds, who went on to set rushing records at the UO.
Royalties for use of the copyrights for call signals with melodies in fiscal 2000 hit 1.22 billion yen, five times the amount in the previous year, according to a report by a copyrights association Wednesday.
Even more irritating than the standard ringing tones are the naff musical call signals. Scotland The Brave is the one that currently drives me up the wall.
The reason was good sportsmanship, removing an unfair advantage for the home team when the sticks blare away while a visiting QB tries to call signals.