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Traffic Voice Alerts and Pilot Aware


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tnowak
tnowak
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MarcusM is just stating that there is no way to meaningfully differentiate between:
1. A high power Mode C transponder transmission from a CAT aircraft, say 50 miles away
2. A low power Mode C transponder transmission from a GA aircraft that may be just 1-2 miles away.
Yes, you can filter transponder returns by altitude but if you are flying in a busy environment it could be confusing/misleading as to what the true threat is.
Tony




grahamb
grahamb
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If only people would focus their attention, and budgets, on -being- conspicuous rather than trying to see every last piece of traffic on their tablets, the situation would soon resolve itself. ;-)




Tim Dawson
Tim Dawson
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Very wise words, Graham!
neilmurg
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tnowak - 2/14/2019 8:27:09 AM
MarcusM is just stating that there is no way to meaningfully differentiate between:
1. A high power Mode C transponder transmission from a CAT aircraft, say 50 miles away
2. A low power Mode C transponder transmission from a GA aircraft that may be just 1-2 miles away.
Yes, you can filter transponder returns by altitude but if you are flying in a busy environment it could be confusing/misleading as to what the true threat is.
Tony




No way? Is that a conclusion after analysing the PAw algorithm?
For instance, how quickly could the strength of a signal from 200 miles away change, aircraft doing 140-250kn, vs a signal from 5 miles away @120kn?
TimT
T
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neilmurg - 2/14/2019 6:08:34 PM

No way? Is that a conclusion after analysing the PAw algorithm?
For instance, how quickly could the strength of a signal from 200 miles away change, aircraft doing 140-250kn, vs a signal from 5 miles away @120kn?

Exactly. This is what the PAw documention says:

The absolute signal strength
transmitted is not a constant for all installations, so PilotAware can only work with relative
strengths. A voice alert is generated as the signal strength from an aircraft known by its
individual ICAO code, changes between strength bands.

GO

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