Surecheck TrafficScope Pirep?

(MikeremlaP) wrote in
:
I know what the SURP light means any more when it's not announcing my
xponder reply. Thought it meant traffic was being rejected outside
the 2500' cylinder, but clearly, something else is going on here.

Interesting. Never seen that happen.

I just rechecked the Monroy web site and it's still as short on hard
data as ever. The only thing it says about the SUPR lamp is that it
indicates a signal in the -15 to +20 dbm is being ignored. That's
*your* transponder, or a very close transmitter.

There is NOTHING that I found that indicates that it has anything at all
to do with traffic outside of range. In fact, I don't really see any
way for it to do so, given the relatively low sensitivity of the
receiver.

I've never seen mine do what you describe, but if I had to guess I would
say that it was seeing a close-by transponder (which it was supressing)
and another more distant transponder, receiving the signals from them at
different times. [Note that there is a substantial time delay during
which the range lamps remain on, even with no signal, and that
intervening high power signals do not affect this. Otherwise your own
transponder replies would stop it from detecting other traffic.]

If I am right about what it was doing (and I am just guessing, but it
matches the way the unit works) then the unit was functioning correctly.

-----------------------------------------------
James M. Knox
TriSoft ph 512-385-0316
1109-A Shady Lane fax 512-366-4331
Austin, Tx 78721
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