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Anyone who has studied a little bit of science in his high school and secondary high knows that air cooling is used for the machines require performance not big demanding. If it is used on a demanding platform than 2 things most certainly rules, either manufacturer is so good in making machines with low power and high performance or he is just making a machine with low power and low performance. With GaA limit these radars are the example of the 2nd, though the area of the aperture seems big(big enough to be fitted on FC1) the radar gain will be good even if it emits low compared to a radar smaller in size and emitting the same , but will suffer heavy against a radar equivalent of the surface area and larger emission of microwaves(ofcourse due to better cooling system) . And in every case liquid cooling>air cooling.no specs available here , so far...
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more about the AVIC group's LKF601E Air-cooled AESA , which was tested on a FC-1/JF-17 prototype.
this is a so called 'in-situ replacement' solution for the Light weight fighter AESA radar upgrade which can easily replaces the KLJ-7 radar of CETC group on the current Block1/2 without much effort.
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