ALR-56

Used on all F-15 series fighter aircraft except the Israeli F-15I version of the F-15E Strike Eagle, the AN/ALR-56 is part of the F-15 Tactical Electronic Warfare System (TEWS), specifically its radar warning receiver. It has receivers for a high and low radar frequency band, and has an architecture that can be upgraded for more threat signal types.

Israel uses a domestically manufactured equivalent.