(John)
shared these priceless pearls of wisdom:

-Lets see if I got this correct. A micro power oscillator injects RF
-pulses into the receiver which then thinks this is a radar
-interrogation pulse and fires out a normal TX pulse out of the
-transponder.

Nope. The transmitter's local oscillator (or a microfragment thereof) is
injected into the receiver's front end. The receiver tests whether or not the
microtransmitter was received.

The transmitter is inhibited by a digital signal during test.

You got it wrong. Sorry.

If you want to carry on this conversation, post your real name and real email
addy.

Jim
Jim Weir (A&P/IA, CFI, & other good alphabet soup)
VP Eng RST Pres. Cyberchapter EAA Tech. Counselor
http://www.rst-engr.com