anti-radiation missile (ARM), though this was never done in real combat. AN/APQ-148 The J-band AN/APQ-148 is the first one in the radar family that had achieved the capability to replace two separate radars with a single multi-function radar. AN/APQ-148 was the original radar on board the A-6E. AN/APQ-156 AN/APQ-156 is the development of AN/APQ-148, and it is used in conjunction with Target Recognition and Attack Multi-Sensor" (TRAM) system starting to be installed on A-6E in 1979 during upgrades. The bombardier/navigator could use both TRAM imagery and radar data for extremely accurate attacks, and the radar has an Airborne Moving Target Indicator (AMTI), which allowed the aircraft to track a moving target (such as a tank or truck) and drop ordnance on it even though the target was moving. AN/APS-130 AN/APS-130 is a derivative of AN/APQ-156 and the upgrade of AN/APQ-129, by applying the knowledge gained from AN/APQ-156 to improve AN/APQ-129. AN/APS-130 is fitted on EA-6B, enable the aircraft to fire AGM-88 HARM. AN/APS-146 AN/APS-146 is a simplified version of AN/APQ-156/APS-130, with the interferometer omitted, but added a weather avoidance pencil beam, and replaced the reflector antenna with a planar antenna. AN/APQ-173 AN/APQ-173 is the development of AN/APQ-156 with the addition to include synthetic aperture radar (SAR). and multi-function cockpit displays – the APQ-173 would have given the Intruder air-to-air capacity with provision for the AIM-120 AMRAAM. AN/APQ-173 was designed for A-6F/G which were cancelled. AN/APG-76 is used in F-4E Phantom II (Israel) and has been tested in a pod configuration with the F-16 and S-3 Viking Gray Wolf Project. AN/APG-73 incorporates capability of AN/APQ-173 such as being compatible with AGM-88 and AIM-120, and it can also be configured as a side-looking radar. The side-looking version of AN/APG-76 played a very important role in the development of AN/APY-3 radar for Northrop Grumman E-8 Joint STARS in providing the foundation of know-hows for the development of the more advanced AN/APY-3. 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. AN/APY-3 AN/APY-3 is the radar developed for E-8 J-STARS. The 24-foot (7.3 meters) long, side-looking planar passive phased array radar is housed in