ground proximity warning

ground proximity warning system

wing-in-ground-effect amphibious craft; ground-effect vehicle (GEV); wing-in-ground-effect (WIG); ground-effect craft; wingship; flarecraft; ekranoplan

proximity fuse

radar-proximity air-burst fuse

electronic proximity fuze

proximity verification

upper proximity dot (of a gyro gunsight)

effective proximity

radar proximity fuze

radio (proximity) fuze

Warning text that appears when the battery voltage falls below warning threshold

early warning ground-based radar (EW GBR)

battle-ground / battle ground / battleground

Ground Observer 12 (GO 12 Ground Surveillance Radar, нім. Bodenüberwachungsradar)

vantage ground / vantage-ground

ground-to-ground guided missile

ground-to-ground rocket

ground/air communications / ground-air communication

advance warning

advance-warning satellite

air defense early warning

airborne early warning (AEW)

airborne early warning aircraft

airborne warning and control aircraft

Airborne Warning and Control System (AWACS)

distant early warning line

early warning (air defense)

early warning (EW)

early warning radar station

early warning sharing (system) (EWS)

early warning system (EWS)

early warning system (EWS) operator