Have a look at:

http://www.avionix.com/collis.html

for answers to all the questions you asked . . . and more. I also would like
to hear from more uses of TPAS devices. I've been following them with
interest for some years. The earlier ones that didn't report altitude were
not acceptable to me - - the newer units this past year are better, and this
one seems like it might be the best of the lot.
--
bumper ZZ (reverse all after @)
"Dare to be different . . . circle in sink."
"Mike Lindsay" wrote in message
...
In article , Andrew
writes
(Sandy McAusland) wrote in message
news:e94d757a.0401131448.1
...
I heard a report of a collision between a glider and a power plane
somewhere in California sometime in December 2003. Does anyone have
any info on this ??

Hi,
Flying with a Proxalert R5 anti collision system since a month.
(www.proxalert.com) It works great and provide info about the three
closest threats.

Please tell us about this gadget. Where did you get it from?
How big and heavy is it? does it need a draggy antenna?

TIA

--
Mike Lindsay