![](http://www.alamy.com/thumbs/6/EC89F119-EDA9-4B2B-B0F8-4453F989A5D2/2DBTAD7.jpg)
The screen of a typical radar device in green
Size: 4935px × 4952px
Photo credit: © Alan / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: air, aircraft, art, artwork, blip, blips, circle, communication, control, danger, detect, detected, detection, drawing, flying, graphic, green, ground, illustration, military, monitor, navigation, object, radar, safety, scan, screen, shipping, signal, sky, sonar, surveillance, system, target, technology, traffic, ufo, unidentified, vector, war, warning, weapon