AirNav Systems Forum
AirNav RadarBox and RadarBox24.com => AirNav RadarBox and RadarBox24.com Discussion => Topic started by: grisu65 on January 21, 2022, 12:12:45 PM
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Hi there,
is there a limit to the range in the feeder?
I noticed that Dump1090-FA continues to receive properly, but disappears with "Out of Coverage" in the view
The flight can still be seen in Flightaware.
Is that possibly a bug?
Greetings from Germany
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What time out does FA use once it has lost the signal from the aircraft, prsumably it is longer than Airnav
Alan
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I think 60sec.
But I don't think that can be the cause.
The evaluation continues to run continuously in Dump1090. When that happens, I can sometimes receive the signal up to 50km further and the plane has disappeared in RB.
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As they are both being fed from the same receiver its all I can think of, different time outs on loosing the signal. I doesnt take long for an aircraft to travel 50Km at 650km per hour
I doubt if anyone on the forum will be able to advise but maybe support could
Alan
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Of course it is possible that this could be the cause.
I'll keep an eye on it and then contact support.
Nevertheless, thank you for your answer.
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The Flightaware's decoder dump1090-fa has max range 360 nm by default.
sudo nano /etc/default/dump1090-fa
Scroll down to these lines:
# Maximum range, in NM. Positions more distant than this are ignored. No limit if not set.
MAX_RANGE=360
.
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Hi there,
Thank you for the tip. I'll change that right away and watch.