AN/APQ-92 is a search and navigational radar, with function called search radar terrain clearance (SRTC) to generate a synthetic terrain display on the pilot's Vertical Display Indicator (VDI), which is a large cathode ray tube (CRT) display in the center of the pilot's console, right under the gun sight.
The limitation of SRTC is in its inability to detect smaller artificial features - like cables suspend across a valley.
APN-186/APQ-112/APQ-127 suit is designed as part of A-6C specially dedicated for night attack missions against the Ho Chi Minh Trail in Vietnam.
[1] AN/APQ-129 is a derivative of AN/APQ-112 for EA-6A, allowing EA-6A to fire AGM-45 Shrike anti-radiation missile (ARM), though this was never done in real combat.
AN/APY-3 provides high-resolution synthetic aperture radar (SAR) images with moving target indicator (MTI) overlays to enable the operator to pick out targets in the images that were moving above some speed threshold.
The SAR-MTI radar can be integrated with an INS or GPS to give the precise locations of targets, with the data relayed to other platforms over JTIDS.
The radar also has some limited capability to detect helicopters, rotating antennas and low, slow-moving fixed wing aircraft.
The planar passive phased array antenna can be either point forward or abeam, with coverage of 200 degree arc, and a maximum range of 200 km.
[7] AN/APY-7 is the development of AN/APY-3, and it is a solid state version of AN/APY-3 that adopts active electronically scanned array technology.
An antenna is installed on the underside of the aircraft, which can be tilted for a 120 degree to either side of the plane to cover targets at more than 152 miles (250 km).