He said passive antenna doesn't use energy at all and it does.That's literally not what he wrote at all.
Do switches, filters and LNAs in RF receiver just operate without power? And if you need to upgrade this RF set to better pick up LPI radar signals, does that require a more comprehensive RF receivers?
Remember, that IAF Rafales that got shot down were not able to pick up that it got locked on during operational Sindoor. And Rafale should by reputation have better EW suite than upgraded F-16s. So, being able to pick up PLA's latest radar locking onto you without getting spoofed is no easy feat. It requires a pretty big upgrade.
A lot of annoy plumbing probably has to be changed along the way for an aircraft with old architecture like those ROCAF block 15s to support something like that.
Of course, I could've been less lazy originally and mentioned the constraint was more than just power, but whatever. I don't have the energy or time to write long posts on everything.
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