Ku band seeker is AESA and 99% fighters in the world do not have ESM to detect a KU band transmitter nor do they have jammers for this band. The jammers are equipped to jam frequencies in 1Ghz to 18Ghz. Ku band is way beyond that. Plus with a very short wavelength, KU band seelers have far superior target discrimination and near optical quality radar image. These guys in Hyderabad are doing a job which is known to very few in the world.
Even Rafale does not have ESM to detect KU band. Ask @Picdelamirand-oil? F4 will have it.
SPECTRA on F3 could handle the band 0.6 - 18 Gz on F3R this has been increased to 0.6 - 40 Gz and for F4 it will be increased to 0.6 - 300 Gz.
ISE for India improve the low band also.
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