The countermeasure systems AN/ALQ-101, AN/ALQ-119 and AN/ALQ-131 in the National Electronics Museum. The AN/ALQ-101 can be seen in the rear of picture.
Carried externally on a pylon under the wing of the attacking aircraft, the ALQ-101 pod is used to counter radar guided weapons. It operates by manipulating the radar signals transmitted from such weapon systems and re-broadcasting them back to the sender in a convincing but highly deceptive manner. The intention is to trick the enemy air-defense system into aiming at an imaginary target which is located some miles distant from the aircraft fitted with the ALQ-101 pod. Because enemy air defense systems appear to work normally whilst the pod is operating, the enemy personnel monitoring them do not realize that they are being deceived.
