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Duplicate Aircraft between T-MLAT2 & T-F5M
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F5m is a network of receivers bundling data. And looks to be lacking a lot of info required.
And MLAT is of course server side production of Mode-S. If users are piping out already calculated GPS data flagged with positional as if it was ADSB, Yeap. You'll get somePosts not to be taken as official support representation - Just a helpful uploader who tinkers
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Originally posted by Oblivian View PostF5m is a network of receivers bundling data. And looks to be lacking a lot of info required.
And MLAT is of course server side production of Mode-S. If users are piping out already calculated GPS data flagged with positional as if it was ADSB, Yeap. You'll get some
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Originally posted by airnrail View PostIs not T-F5M one of designators used for FAA data together with FAAx? When they used to show up as orange planes, those two codes appeared on orange planes all over the north Pacific and North America.
Now if you could combine what both are reporting, you would end up with a better dataset, one reports things the other doesn't
Hopefully things will settle down over the next few days.
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I see the same problem all the time and keep that feature turned off. Under visibility if you switch off "US/Canda Radar Live" it masks the FAA sourced aircraft.
Attached images show the typical problem. The radar returns from the FAA sources over land within range of receivers have always been messed up.Attached Files
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Here's another couple of screen grabs clarifying the error. The T-F5M source is the phantom of the T-MLAT radar source. Between the time it took to get the screen grabs, both had climbed to 18K but were tracking the same altitude and the same airspace most of the time.Attached Files
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Thanks. Turned it off. F5M data is just wrong.
Originally posted by Sam26K View PostI see the same problem all the time and keep that feature turned off. Under visibility if you switch off "US/Canda Radar Live" it masks the FAA sourced aircraft.
Attached images show the typical problem. The radar returns from the FAA sources over land within range of receivers have always been messed up.
I have noticed several problems with F5M data. For one, they present AC which don't exist where they are supposed to be. I had one "fly" right over the house per FR24 but I was not receiving it. So, it was not there. My range is not up there with the best but if something is flying right overhead, I will surely see that!
Another problem is the duplication between the two feeds. I have seen multiple occurrences of duplicate AC on the map. The AC are close to each other but there are certainly two of the same ID on screen.
The third problem I have seen with their feed is where planes flip between positions immediately and/or disappear mid "flight". This is from erroneous data. Since I don't know anything about that network, I can't even speculate on how the error data comes to be but there is frequently bad positions reported and impossible aerobatics going on!
My opinion is that FR24 needs to figure out who they will believe and put up the one that is thought to be correct. My vote is to ignore F5M input. It seems to be consistently wrong.
Mike
Vallejo, CA
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My take away on the FAA data is that is not reliable at all but since it's from the FAA it should not be blocked from FR24. It's the officially released public data. The user has the option to switch it off (which I do) but I don't think it should be blocked from FR24.
If anything to me it's a curiosity and justifies further investigation by those who are curious .
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Good point
Originally posted by Sam26K View PostMy take away on the FAA data is that is not reliable at all but since it's from the FAA it should not be blocked from FR24. It's the officially released public data. The user has the option to switch it off (which I do) but I don't think it should be blocked from FR24.
If anything to me it's a curiosity and justifies further investigation by those who are curious .
I tried FlightAware and the software kept crashing and when it didn't, the maps they present are quite inferior to FR24 so I am staying here and enjoying the view.
Mike
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