There’s been increased talk in recent years about active stealth (ie active radar cancellation measures). Most of it focused on the Rafale, but the small (F-5 sized) Gripen would be an excellent platform for such ...
I was wondering about the problem of the “unexplainable blank place” actually pointing out where the plane is.
“Look at that moving ‘hole’ on the radar! That ‘nothing’ thing is coming right for us!”
There’s a similar thing I’ve run into with email failure reporting. Due to various spam related reasons, email providers can’t tell me me that ‘X’ reason is why they won’t deliver an email. However, they can tell me every OTHER reason it can’t be delivered. I think you can deduce how that’s going to work out.