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Radiation or reradiation of electromagnetic waves so as to impair the usefulness of a specific segment of the radio spectrum that is being used by the enemy for communication or radar. Also known as active jamming; electronic jamming.
Electronic or mechanical interference that may disrupt the display of aircraft on radar or the transmission or reception of radio communication or radio navigation signals. Radar, communications equipment, and navigational aids can be jammed. Jamming is a major activity in electronic warfare.