posted on Mar, 6 2014 @ 01:27 AM
If parts are made all over, whats to stop someone like China embedding a passive RFID someplace in the airframe? All China would have to do is "ping"
for the plane and use sensitive antennas to pick up the return signal.
The inverse square law means that the return signal is going to be ridiculously small from a small RFID chip. Even a passive array will not get you a
stronger bounce than you would get from a normal return signal. It would be smaller than a normal return signal. And that would be pointless. If you
are getting a RFID return signal, then you don't need it because you'd already be getting a normal paint. If your antennae are sensitive enough to
pick up the passive RFID signal at a given distance, then it is sensitive enough to pick up the return signal from a normal return from the same
(actually greater) distance.
You would need a transponder like an IFF transponder or even a LoJack-type system. You would need a power source and an antenna. If you want to
generate more data other than a pulse for your ping, you'll need a frequency converter. You're going to notice an extra black box.
Since most radiation will be deflected by the shaping of the airframe or absorbed by the baked in RAM, I don't even know if you could get an
interrogation signal through, or if you could get a responding signal out without an external antenna.
There are all sorts of good reasons for avoiding Chinese products in our weapon systems. This would be so fantastic as to be not one of them.
edit on 6-3-2014 by _Del_ because: (no reason given)