Comment by angry_octet

That's how your imagination of 5th fighters work (because there are no 6th gen fighters in service), as if they are somehow invisible. This is a misunderstanding of RADAR.

Lower frequency RADAR will pick up F-35s, but not with enough precision to generate a target track. Pilots spend a lot of thought on the problem of signature management.

A Chinese Wedgetail would be extremely dangerous, as it could provide a very good detection, and with a close enough X-band RADAR you will get a target, and then it is up to kinetic escape/EW/decoys. That is a bad situation to be in during a large force engagement.

The PLAAF is of course working on longer range and faster AEW&C and jam resistant data link and expendable sensors. It is just a matter of time.