You searched for: “electromagnetic countermeasures
electronic countermeasure, ECM, electronic countermeasures; electromagnetic countermeasure, electromagnetic countermeasures, ECM
1. A division of electronic warfare in which actions are taken to interfere with a military enemy's use of the electromagnetic or a range of electromagnetic radiation or waves, used in military air defenses and interceptions.
2. The disruption of the operation of a military enemy's equipment; as by jamming radio or radar signals.
3. A military offensive or defensive tactic or device using electronic and reflecting apparatuses (apparatus or systems allowing certain functions) to reduce the military effectiveness of enemy equipment involving electromagnetic radiation; such as, guidance, radar, communication, or other radio-wave devices.
This entry is located in the following units: electro-, electr-, electri- (page 61) -tron, -tronic, -tronics + (page 8)