True. The reason I said what I did is because if you have an aircraft that's designed to defeat airborne X band, and somebody on the ground pulls out a truck-m

True. The reason I said what I did is because if you have an aircraft that's designed to defeat airborne X band, and somebody on the ground pulls out a truck-mounted radar in a different band, I still wouldn't say the stealth has been defeated, if the reason X band was chosen was to defend against other aircraft. Don't know your background, so I apologize if this is old info for you: the band of radar you use is driven by the size of the antenna, which is why pretty much all fighter radars are X band (maybe +/- a little bit). You only have so much space in the nose of an aircraft, and that becomes a constraint for what radar frequencies you can use. If you know that, and your goal is to not get shot down by enemy fighters, you can optimize your radar signature for that threat. To me, this article is like saying something like "bullet-proof vest defeated by falling boulder." My reaction is well...no...not really....