Loran,
"Same thing: If my transponder is not interrogated, the target
transponder
won't be, either."

Nothing could be further from the truth. I would reccomend you talk
to your local center, or approach control and see why because the
explanation is rather lengthy. Also bear in mind the growing amount
of Mode S transponders which transmit regardless of interrogations.

Well, I disagree. Also, what about those S-mode transponders? If they
transmit, that's great!


Even so, what altitude would your ATD show if you flew out of radar at
5,000 feet and descended 1,000 feet? Without that interrogation, it
would still be locked at 5,000.

Again, no. It will revert to displaying the target's absolute altitude.

I read that, and have learned from MANY years that when a manufacturer
says *extremely rare cases* you can bank on it happening often.

Ok, so we go into the "wild guessing based on prejudice" mode. To that, all
I can say is: Go ahead, spend the money and be happy with whatever you buy.

Actually I have a subscription, but you know, nowhere is there a
review on the Proxalert, Trafficscope, or ATD300.

And I didn't say that. I referred to the review on the previous generation.

Better yet, I would be curious if Aviation Consumer is planning on
reviewing all three of these devices.


Yes, they do.


--
Thomas Borchert (EDDH)