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SELCAL

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ID 735508 Viimati muudetud 03.05.2024
Vaata sõnakogu
Vaata sõnakogu
Valdkond lennundus ja õhutransportlennujuhtimine
selektiivkutsungi süsteem
valikulise väljakutse süsteem
selective calling system
Selective Calling System
SELCAL system
système d’appel sélectif
système SELCAL
  • a system which permits the selective calling of individual aircraft over radiotelephone channels linking a ground station with the aircraft
  • an automatic signaling system used in aircraft to notify the pilot that the aircraft is receiving a call
    Hea teada
    • Each aircraft operated by an airline is assigned a particular four-tone combination for identification purposes. A ground station keys the signal when trying to contact a particular aircraft. The signal is decoded by the airborne selcal system and the crew is alerted. The system can operate on VHF (very high frequency) as well as HF (high frequency) frequencies. A total of 10,920 codes can be generated by the system.
Hea teada
  • Valdkond ICAO lisade põhjal loodud klassifikaatori järgi: Lennuliikluse korraldamine
selektiivkutsungi süsteem
valikulise väljakutse süsteem
SELCAL lühend
selective calling system
Näited
  • With the selective calling system known as SELCAL, the voice calling is replaced by the transmission of coded tones to the aircraft over the radiotelephony channels. A single selective call consists of a combination of four pre-selected audio tones whose transmission requires approximately 2 seconds.
Selective Calling System
SELCAL system lühend
Näited
  • The purpose of the SELCAL system is to permit the selective calling of individual aircraft over radiotelephone channels linking the ground station with the aircraft, and is intended to operate on en-route frequencies with existing HF and VHF ground-to-air communications transmitters and receivers with a minimum of electrical and mechanical modification.
SELCAL lühend
système d’appel sélectif
système SELCAL
SELCAL lühend

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