Hi all,Just an interesting snippet of info i thought i would share as may be relevent to the current ukraine issues,a few years ago i was chatting to an avionics expert from uk raf waddington in the pub,we got onto te subject on radar stealth technoligy,the balkans war came up,he said they were managing to defeat stealth by using old radar sets with old filtering,ie look at were there is no background clutter on the screen,sort of an inverted radar image,Ie look for a clear space on the display and theres your target,anyone else heard of this,he is a clever guy so dont think its b.s,what do you think?.hope i dont get a visit from the men in black for posting this as supposidly its classified info lol.