AN/APG-68
US military aircraft fire-control radar
The AN/APG-68 radar is a long range pulse-Doppler radar designed by Westinghouse (now Northrop Grumman) to replace the AN/APG-66 radar in the General Dynamics F-16 Fighting Falcon. The AN/APG-68 radar was itself to be replaced beginning in early 2022 on US Air Force F-16C/D Fighting Falcon Block 40/42 and 50/52 by the AN/APG-83 AESA radar.
In accordance with the Joint Electronics Type Designation System (JETDS), the "AN/APG-68" designation represents the 68th design of an Army-Navy airborne electronic device for radar fire-control equipment. The JETDS system also now is used to name all Department of Defense and some NATO electronic systems.
Description
The AN/APG-68 is an improvement to the AN/APG-66 used on the F-16A/B. The AN/APG-68(V)8 and earlier versions of the radar system consists of the following line-replaceable units:
Antenna
Dual Mode Transmitter (DMT)
Modular Low-power radio frequency (MLPRF)
Programmable signal processor (PSP)
The AN/APG-68(V)9 version consists of the following line-replaceable units:
Antenna
Medium Duty Transmitter (MDT)
Modular Receiver/Exciter (MoRE)
Common Radar Processor (CoRP)
The APG-68(V)9 is the latest development of the radar. Besides the increase in scan range compared to the previous version, it has a synthetic aperture radar (SAR) capability.
The APG-68(V)9 has equipped several exported F-16 variants, including the Egyptian Air Force, Israeli Air Force, Chilean Air Force, Republic of Singapore Air Force, Turkish Air Force, Royal Moroccan Air Force, Greek Air Force, Pakistan Air Force, Polish Air Force, Royal Thai Air Force, and Indonesian Air Force.
Specifications
Frequency: Starting Envelope frequency around 9.86 GHz (3.04 cm)
Under AIS Testing as high as 26 GHz (1.2 cm)
Max Detection Range : 50 mi (80 km)
Search cone: 120 × 120 degrees
Azimuth angular coverage: ±10 degrees / ±30 degrees / ±60 degrees
Programmable Signal Processor (PSP) - The core radar component which is responsible for signal processing, frequency selection, signal digitization for B-Scope display. The PSP is controlled through the F-16 Heads Down Display Set (HDDS) or what is commonly called the Multi-Function Displays (MFDs). The PSP is directed by the system operational flight program (OFP), which is controlled and modified for new threats or addition radar system requirements.
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