Electronic warfare
Electronic warfare sensors consist of the ITT EDO Reconnaissance and Surveillance Systems ES-3701 electronic support measures (ESM) radar, a SwRI MBS-567A communications ESM system, an Ultra Electronics Avalon Systems multipurpose digital receiver, and a Jenkins Engineering Defence Systems low-band receiver. Countermeasures include four launchers for Nulka decoy missiles, plus four six-tube launchers for radio frequency, infrared, and underwater acoustic decoys.