Hi all!
Actually, this post rather addressed to FR24 administration, as probably they only can say, how can be possible that in the area with a several independent ADSB recievers the only one feeder
is preferred to be seen on FR24.
I know, similar issue has been discussed here many times, but I believe, this case is slightly different from the simple "last feeder takes preference" rule.
Attached picture taken on 10 May 2013 illustrates this.
UNTT1_only.jpg
There are independent sources in the area marked with red circle on the map: UNTT1, UNNT3, UNWW2, UNWW3, UNEE1 and some others. Since last few days, any aircraft passing this area can be seen
as tracked mostly (95% of cases) by UNTT1 radar, inspite of all other feeders are on-line 24/7. Most of those radars are able to detect the aircrafts at the distance up to 250 miles in circular visibility.
Nevertheless, planes can be seen as tracked by other radars very rarely, if UNTT1 can't spot them physically, on very low altitudes, for instance.
This is really great, that we have good coverage in that area, but on other hand, such "absolute preference" for the single radar/feeder can dramatically discourage other active feeders to contribute their
efforts to FR24.
Can someone clarify, why such long-lasting, exclusive preference takes place? What is so good can have one feeder and can't have others? IP-packet roundtrip, feeding SW, recieving HW? What???
Actually, this post rather addressed to FR24 administration, as probably they only can say, how can be possible that in the area with a several independent ADSB recievers the only one feeder
is preferred to be seen on FR24.
I know, similar issue has been discussed here many times, but I believe, this case is slightly different from the simple "last feeder takes preference" rule.
Attached picture taken on 10 May 2013 illustrates this.
UNTT1_only.jpg
There are independent sources in the area marked with red circle on the map: UNTT1, UNNT3, UNWW2, UNWW3, UNEE1 and some others. Since last few days, any aircraft passing this area can be seen
as tracked mostly (95% of cases) by UNTT1 radar, inspite of all other feeders are on-line 24/7. Most of those radars are able to detect the aircrafts at the distance up to 250 miles in circular visibility.
Nevertheless, planes can be seen as tracked by other radars very rarely, if UNTT1 can't spot them physically, on very low altitudes, for instance.
This is really great, that we have good coverage in that area, but on other hand, such "absolute preference" for the single radar/feeder can dramatically discourage other active feeders to contribute their
efforts to FR24.
Can someone clarify, why such long-lasting, exclusive preference takes place? What is so good can have one feeder and can't have others? IP-packet roundtrip, feeding SW, recieving HW? What???