Originally posted by Ressy
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If the icon is orange then it is FAA supplied data that is deliberately delayed by 5 minutes (US paranoia) I don't know if the FR24 feeders data can override this or if they still have to use the delayed data, it is possible that the FAA have asked for live data to be blocked as happens for many aircraft, they would still show on your local VRS screen but only via the delayed feed on FR24.
Originally posted by RicksRadio View PostDelay Times??
Today I have noticed some very odd aircraft tracking. For example, my station (T-CYWH3) spotted ANA-116 on my Virtual Radar Server screen approximately 50 km west of Vancouver Island (approx 21:15 UTC). FR24 had the aircraft icon as orange (as opposed to yellow), positioned further west and for the radar indicated T-F5M.
My receiver (T-CYWH3) continued to track ANA-116 on VRS but ANA-116 did NOT show up as being tracked by FR24 with ADSB for more than 2 minutes. At that time it was picked up and positioned by F-CYXX1. To my knowledge the data from T-CYWH3 was never used to plot ANA-116?
A quick check of my FR24 Status indicates all is well. I have seen this with other aircraft today but this is the first one I've documented. Any suggestion why my data is not being picked up by FR24 or why there's such a long delay?FR24 F-EGLF1, Blitzortung station 878, OGN Aldersht2, PilotAware PWAldersht, PlanePlotter M7.
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Please remember,. the Yellow aircraft,. Are Realtime,. Where as the Orange planes
Comes from FAA,. And have a five minute delay on them(F-EDLE1)delcomp-DEL-David Tks(My friend Mike, all three of them)
URL: http://banner.flightdiary.net/EDLM
1090SJ(Ae) /(6m. Ecoflex10) / SBS 3 /-FR24 Box/ Power-line Connection (Ethernet)
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my station (T-CYWH3) spotted ANA-116 on my Virtual Radar Server screen approximately 50 km west of Vancouver Island (approx 21:15 UTC). FR24 had the aircraft icon as orange (as opposed to yellow), positioned further west and for the radar indicated T-F5M.
My receiver (T-CYWH3) continued to track ANA-116 on VRS but ANA-116 did NOT show up as being tracked by FR24 with ADSB for more than 2 minutes. At that time it was picked up and positioned by F-CYXX1. To my knowledge the data from T-CYWH3 was never used to plot ANA-116?
A quick check of my FR24 Status indicates all is well. I have seen this with other aircraft today but this is the first one I've documented. Any suggestion why my data is not being picked up by FR24 or why there's such a long delay?F-KDAG1
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It is my understanding that FR24 uses FAA data (orange - delayed 5 min) when no other ground based ADSB information is available from the FR24 network. In addition I anticipate a delay between my spot of an A/C and it's appearance on the map. At my location 5 to 15 seconds is typical. In this case it was close to 140 seconds AND when a "real-time" spot was plotted it was NOT my data?
Originally posted by Patrick Reeves View PostVRS will show all aircraft picked up by your receiver. FR24 uses a "last in first out" algorithm that focuses on data quality when there are several receivers in the same area.
Finally, today I'm tracking DL24 (NRT to ATL) about 250 km west of my station over the Pacific and all is well. Delays are normal and I tracked this A/C for more than 100 km before another F-xxxx station took over.
Thanks to all for the replies.
F-CYWH1 Southern tip of Vancouver Island
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Well today I witnessed another significant delay. At my location I "see" A/C coming to North America off the west coast. Often these A/C have NOT be spotted by any land-based ADSB station for many hours. Here's what I saw when DAL-588 from PVG to SEA approached.
14:54 I picked up DAL588 (as indicated on VRS) at approximately 250 km west of my station. A complete data set (less SQUAWK) was indicated. FR24 continued to indicate Radar as T-F5M
14:56 Squawk was decoded by my station
15:01 FR24 finally accepted my data and changed the Radar source fromT-F5M to T-CYWH3. It was then quickly changed to F-xxxx
DAL588 was traveling at 500 kts at the time. In the period shown above, the A/C traveled more than 55 nmi.
It would be interesting to know what's happening? Are T-xxxx stations given extra screening when "new" A/C appear? It appears that something may be happening in the algorithms that check the data.
Obviously this is not a big issue but it would be nice to find out some details of the data handling process.
F-CYWH1 Southern tip of Vancouver Island
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Since almost 3 days this "thing" is in the air http://www.flightradar24.com/FFMUNT . It is more or less on the same position. It might be a bug, because the radar is all the time "T-MLAT7". If the link doesn't work, it is south of Erfurt (ERF/EDDE) Airport.
ThanksRegards,
T-EDDE7
Debian 8 Server | jetvision ADS-B USB Dongle | ADS-B Collinear Antenna
Banana Pi | Mystique SDR R820T2 | stock Antenna
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Originally posted by FWE View PostSorry if this has been asked before: What's the difference between F- T- and N- Feeders?
Thanks for your reply.
T- = For al other Recievers (SBS / USBSticks etc.
N- = For all Network Recievers.(F-EDLE1)delcomp-DEL-David Tks(My friend Mike, all three of them)
URL: http://banner.flightdiary.net/EDLM
1090SJ(Ae) /(6m. Ecoflex10) / SBS 3 /-FR24 Box/ Power-line Connection (Ethernet)
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I have noticed that quite a few African Major Cities now broadcast data.
They all have F-... So I am assuming they are flightradar24 Receivers.
Can these broadcasts also be from the airport authorities themselves?
If that would be possible I could possibly convince other major airports in the East African Regions to do the same.
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The airport authorities around the world could be setting up FR24 Boxes at their locations. We don't know till we read about it.
Just like how Airbus has FR24 boxes on their hangers.Last edited by SoCalBrian; 2015-09-01, 17:11.Brian
www.RadarSpotters.eu
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Originally posted by SoCalBrian View PostThe airport authorities around the world could be setting up FR24 Boxes at their locations. We don't know till we read about it.
Just like how Airbus has FR24 boxes on their hangers.
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