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Old April 21st 14, 03:17 AM posted to rec.aviation.soaring
Dan Marotta
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Posts: 4,601
Default PowerFlarm v3.40

That's what I would hope. I recall that, when I installed my Mode S
transponder and had it tested, it was putting out over 175 watts to the test
equipment antenna. Don't we have an inverse cube function of power density
to distance? I think that's right, though I probably didn't say it
correctly. Anyway, an aircraft a couple of hundred feet away would be
received in the milliwatt range, maybe somewhat more, but certainly not at
100+ watts.


"Ramy" wrote in message
...
I am pretty sure that the suppression is based on power as well, in addition
to altitude. So only a strong signal at the same altitude will be
suppressed. Which mean you will still get warning for same altitude until
the other aircraft is very close, giving you enough warning. I assume this
is the same way that Zaon works. But again this is just my guess. Will be
nice if Flarm folks will comment on this.

Ramy