electronic countermeasures
- n electronic warfare undertaken to prevent or reduce an enemy's effective use of the electromagnetic spectrum
electronic countermeasures :
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- How A Mig-31 Repelled The World's Fastest Spy Plane From Soviet Skies
The SR-71's impressive mission record was reached thanks to some unique features of its airframe, such as its ability to fly at more than three-and-a-half times the speed of sound at 88,000 feet, its small (for the time) Radar Cross Section (RCS), and its sophisticated electronic countermeasures (ECM).
Dec. 11, 2013 - Business Insider