An electronic attack (i.e., countermeasures) transmitter, the U.S. AN/ALQ-162 jams continuous wave radar. This type of signal is most commonly used by surface-to-air and air-to-air missiles guided by semi-active radar homing.
It can be controlled by electronics countermeasures suite controllers including the AN/APR-39 and AN/ALQ-213. In various versions, it is deployed on transport, special operations, electronic warfare and attack helicopters such as the AH-64 Apache. The 40-pound unit is small for its capabilities.