navigation acronyms, abbreviations and definitions - International ...

ASCII American Standard Code for Information Interchange
Comprises letters, digits and special characters each represented by 8
bits or 1 byte.
ASDE airport surface detection equipment (radar) (can feed AMASS)
ASDL Aeronautical Satellite Data Link
ASDO automatic selective door operation (rail)
ASE altimetry system error
ASECAP Association Européenne de Concessionnaires d’Autoroutes et
d’Ouvrages à Péage
ASF additional secondary factor (cause of Loran sig delay - also PF & SF)
ASF Air Safety Foundation (of the US AOPA)
ASHTAM Volcanic Ash NOTAM
ASI Agenzia Spatziale Italiana (Italian National Space Agency)
ASI Airspace and Safety Initiative (UK CAA, NATS, AOA, MoD)
ASI airspeed indicator
ASIC application-specific integrated circuit
An IC designed or adapted for a specific application.
ASK available seat kilometres (a measure of civil available air capacity)
asl above sea level
ASL application simulation level
ASM airspace management
ASMGCS Advanced Surface Movement Guidance and Control System (airfield)
ASMI airfield surface movement indicator
ASMS advanced satellite mobile system (future comms)
ASOS Automated Surface Observation System (US - air)
ASP application service provider
ASP average selling price
ASQF Application Specific Qualification Facility (EGNOS - Torrejon)
ASR airport/airfield surveillance radar
ASR altimeter setting region
ASR aviation safety report
ASR-WSP airport surveillance radar - weather systems processor (FAA)
ASRS Aviation Safety Reporting System (NASA)
Assignment Authorisation given by a licensing authority for a radio station to use a
specific radio frequency or channel under specified conditions.
ASSIST Alpine Safety, Security & Informational Services & Technologies
ASSP Application Specific Standard Product
IC dedicated to one specific application (like a custom IC)
but with several possible customers (unlike a custom IC).
ASTE Advanced System Telecommunication Equipment programme (ESA)
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March 2012