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SE2 traffic warning false alerts


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tnowak
tnowak
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Last week I flew to Sandown, IOW, on the last day before UK Lockdown No. 2.
The circuit was very busy due to airfield operational issues so I had to fly three circuits before landing.
I didn't do "touch and go" - I just continued to fly at circuit height.
Each time I overflew the airfield I received a warning about an aircraft at 35000ft above, overtaking at 330 Kt.
I think this warning occurred three times.
I didn't see anything on the moving map but wasn't really looking for long either due a fairly busy circuit.
I think SD was detecting high level CAT in the airway above me, so likely a glitch in the SD traffic filtering algorithm.
I have never detected anything similar at any other time and just use the standard default for a height filter in the basic SD setup.
Tony

Tim Dawson
Tim Dawson
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Interesting. I can only imagine the traffic way above was giving a false vertical speed, at least that's the only thing I can think of. It's not clear what we could do about this, since if that vertical speed were true, you'd probably want to be warned.
tnowak
tnowak
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Tim,

I looked at my flight with FlightRadar 24 and it was a Ryanair at FL380 that flew right over the top of me while I was in the circuit.
I can e-mail you a screenshot of the FR24 tracking if you like.
Tony

Tim Dawson
Tim Dawson
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No thanks, I don't think there's any particularly useful information it could give us.
GO

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