3 Radar Options for JF 17 B3...
The centerpiece of the Block 3 will be its active electronically scanned array (AESA) radar. Though the PAF CAS stated that the selection is now down to “one of two new Chinese AESA radars,” (i.e., the KLJ-7A and the LKF601E ) Alan Warns reported that the Leonardo Grifo-E “is still on the table.”
Leonardo unveiled the Grifo-E in 2018 as a low-cost AESA radar solution for lightweight combat aircraft. However, the Grifo-E uses gallium-nitride (GaN)-based transmit/receive modules (TRM), which are more efficient in terms of power consumption than older gallium-arsenide (GaA)-based TRMs.
The Grifo-E can simultaneously track up to 24 targets (the LKF601E can track 15), but its range for picking up “fighter-sized targets” are 139 km to 157 km ( Leonardo). The LKF601E can track “fighter-sized targets” at up to 170 km. Otherwise, the Grifo-E, KLJ-7A, and LKF601E appear to have similar features, though the Grifo-E also includes an “inverse synthetic aperture radar” (ISAR) for “seaborne and airborne targets.”
Seeing how Leonardo opened an office in Islamabad, the company’s willingness to sell the Grifo-E is not a concern. Rather, the main constraint with selecting any Western radar is that the PAF will have trouble in integrating Chinese radar-guided munitions – i.e., the SD-10 beyond-visual-range (BVR) air-to-air missile (AAM) and the C-802 anti-ship missile (AShM) – to the radar. The PAF’s Chinese and Western partners will not share their respective source-codes to enable for such integration.