electronic countermeasures

American  

plural noun

1. the use of electronic technology to jam and deceive enemy radars, especially those used for air defense and interception. ECM

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electronic countermeasures British  

plural noun

1. military (in electronic warfare) actions intended to interfere with an enemy's use of electromagnetic radiation equipment

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Etymology

Origin of electronic countermeasures

First recorded in 1965–70

Example Sentences

Ukraine’s air defense, layered over distance and altitude, includes a wide range of kinetic and electronic countermeasures.

From The Wall Street Journal

They included drones linked to operators by fibre-optic wires - which are impossible to jam with electronic countermeasures.

From BBC

Toggling between the high tech and low tech as I explained earlier is using electronic countermeasures to shut down the drones.

From Salon

It can also be disrupted by other sources, such as electromagnetic noise or human-generated signals – an indication the Navy could develop electronic countermeasures to the Chinese detection system.

From Washington Times

Soldiers and civilian volunteers make these in garage workshops, experimenting and inventing with 3-D printed materials, explosives and custom-built software to try to avoid Russian electronic countermeasures.

From New York Times