Who knows US sell friendly radars to our enemy state and F-16 recognize enemy aircraft as friendly?
We'll be fuked in a bad way in the net centric warfare where identification of friend and foe is key.
I'm not sure you understand how IFF equipment works. BOTH aircraft require an encrypted "Code of the day" for the IFF interrogation to return "friendly." For your scenario to play out, we'd have to know the IFF code (changeable via software by ground personnel) of the Pakistani system, AND give it to the enemy. All you need to do is keep the code a secret. PAF aircraft return friendly, others don't.
I believe whenever radar of our F-16 process the radar image scaned a/c as F-16 it will be counted as friendly.
Again, it doesn't work that way. IFF is a digital burst that has nothing to do with a typical X-band signal. IFF (excepting NCTR) is separate from raw radar returns.
BTW... i like to comment on emitting signal thing as well...
You might remember the 'behind enemy lines - 1' the pilot seat had some frequency emitter which was catched by his commander in command center.
ANY signal emitted by any system is liable to be detected, triangulated upon, or attacked via HARM or similar weapons. Don't transmit anything. It's called EMCON. As for a movie... it's a movie. Star Wars was a movie too.
If we sold secrets to India (the obvious "enemy" in this scenario) on some mythical secret to defeat an AIM120, then there goes our entire fleet of fighters.
There is no secret digital signal, no turn off switch, no software "backdoor" to U.S. weapons. If there was, it would only be a matter of time before some country discovered it, and there goes the entire worldwide market for U.S. arms.
Companies like Lockheed, Raytheon, Boeing,
want their products to be world class. That is how more are sold.
@StormForce: That "old" mechanical radar on the F-15 has a 100:0 kill ratio. There's nothing wrong with mechanically-scanned radars. They will be effective for decades.