Noun
callsign (plural callsigns)
Alternative spelling of call sign
A month later, radio enthusiasts in California monitoring Edwards AFB Radar (callsign "Joshua Control") heard early morning radio transmissions between Joshua and a high flying aircraft using the callsign "Gaspipe". Source: Internet
Authorization to use the callsign "K1N" for the duration of the DX-pedition was issued by a Special Event Callsign Coordinator on behalf of the U.S. Federal Communications Commission who has control of all amateur radio licensing on U.S. territory. Source: Internet
For example, AA is the IATA callsign for American Airlines — ATC equivalent AAL. Source: Internet
JP Morgan Asset Management and Callsign both declined to comment. Source: Internet
A major operation took place in 2000 by a four-man team who made 50,000 contacts with the callsign FR/F6KDF/T. Source: Internet
Amateur radio operators occasionally transmitted from the island, using the KH3 callsign prefix. Source: Internet