I'm not at all sure how you evaluated the Proxalert R5. I've been flying
with mine for over a year now in both my glider and Mooney, out in the
toolies and flying in congested areas while talking to ATC. The Proxalert
has provided reasonably accurate estimates of threat aircraft range and
accurate altitude and trend. The R5 provides info the others don't, squawk
code, so you can tell if the other guy is talking to ATC or not.

Proxalert *was* the clear choice in TPAS up until ShureCheck recently
lowered their prices. Now the R5 comes at a $300 premium . . . tougher
choice.

I have no interest or affiliation with Proxalert, just a satisfied customer.

all the best,

bumper
wrote in message
oups.com...
Proxalert is a knock-off device of the TrafficScope. I flew with both
to evaluate them for our club aircraft. The TrafficScope was faily
accurate, but the Proxalert was was all over the place with both range
and altitude. I wouldn't consider the Proxalert to be a viable option
for accuracy.