Acronyms: G

Acronym	Name
G/A	Ground/air or ground-to-air
G/G	Ground/ground
G/S	Glide slope
GA	General aviation
GA	Go-around
GAA	General Aviation Activity
GAAA	General Aviation Activity and Avionics
GAAS	Gallium arsenide
GACS	Genetic ATN communications service
GADO	General Aviation District Office
GAGAN	Geostationary augmentation network
GAIN	Galley inserts
GAIT	Ground-based augmentation and integrity technique
GAMA	General Aviation Manufacturers Association
GAN	Global area network
GANP	Global Air Navigation Plan
GAO	Government Accountability Office
GAO	Government Accountability Office (U.S.)
GAO	Government Accounting Office
GATM	Global air traffic management
GAViS	General aviation vision system
GBAS	Ground Based Augmentation System
GBAS	Ground-based augmentation system
GBSAA	Ground-based sense and avoid
GBST	Ground-based software tool
GBT	Ground-based transceiver
GCA	Ground Control Approach
GCA	Ground-controlled approach
GCAS	Ground collision avoidance system
GCB	Generator circuit breaker
GCC	Ground cluster controller (ACARS)
GCP	Glare-shield control panel
GCS	Ground clutter suppression
GCS	Ground control station
GCU	Generator control unit
GDE	Ground Delay Enhancements
GDLP	Ground data link processor
GDOP	Geometric dilution of precision
GDP	Ground delay program
GENOT	General notice
GEO	Geostationary Satellite
GEO	Geosynchronous/geostationary earth orbit
GEP	Ground entry point
GES	Ground earth station
GETS	Government Emergency Telecommunications Service
GETS	Grievance Electronic Tracking System
GFE	Government furnished equipment
GFI	General format identifier
GFLOPS	Gigaflops
GFM	Government Furnished Materials
GFP	Government Furnished Property
GFSK	Gaussian frequency shift keying
GG	Graphics generator
GGR	G/G router
GGS GPS	Ground station
GGTFM	Ground-ground traffic flow management
GH	Ground handling
GHG	Greenhouse gas
GHz	Gigahertz
GI	Group identifier
GIB	Global navigation satellite system integrity broadcast
GIC	GPS integrity channel
GIC	Global navigation satellite system integrity channel
GICB	Ground-initiated comm-B
GIG	Global Information Grid
GIG-BE	GIG-Band Expansion
GIHO	Ground initiated handoff
GINS	GPS-inertial navigation systems
GIOVE-A	Galileo In-Orbit Validation Experiment-A
GIP	Government-industry partnership
GIS	Geodetic information system
GIS	Geographic information system
GIS	Graphical information system
GIVE	Grid inospheric vertical error
GJU	Galileo joint undertaking
GL	Ground location (ACARS/AFEPS)
GL	Group length
GLC	Geographic locator codes
GLNS	GPS landing and navigation system
GLONASS	Global Navigation Satellite System (Russia)
GLONASS	Global Orbiting Navigational Satellite System
GLS	GBAS Landing System
GLS	GNSS landing system
GLS	GPS landing system
GLU	GPS landing unit
GM	Guidance material
GMC	Ground movement control
GMCC	General National Airspace System Maintenance Control Center
GMDS	Ground mobile data service
GML	Geography Markup Language
GMR	Giant magnetoresistive
GMS	Grants Management System
GMT	Greenwich mean time
GMTI	Ground moving target indicator
GMU	GPS monitoring unit
GNA	Global network architecture
GNAS	General National Airspace System
GNE	Gross navigational error
GNR	Global navigation receiver
GNSS	Global Navigation Satellite System

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Acronyms: G