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ADS-B Exchange works fine: https://globe.adsbexchange.com/?icao=ae503d https://globe.adsbexchange.com/?icao=ae503d Edit: FR24 link for comparison: https://www.

by 4cao 4y ago

ADS-B Exchange works fine: https://globe.adsbexchange.com/?icao=ae503d https://globe.adsbexchange.com/?icao=ae503d Edit: FR24 link for comparison: https://www.flightradar24.com/SPAR19/2ce4f83f https://www.flightradar24.com/SPAR19/2ce4f83f

nyanpasu64 4y ago
I like ADS-B Exchange and all for being a (purportedly unfiltered) data stream based off community volunteers uploading data from SDR stations (I even briefly ran a data source), but it's missing data for the middle of the flight.
- 4cao 4y ago
  Yeah, seems they don't have much coverage in Indonesia and the Philippines. I wonder if FR24 (which was showing the flight path correctly all along) depends on private uploaders there, or do they have other data sources to fill the gaps.
  - Scoundreller 4y ago
    I think they have some satellite-based connection points, and those feeds understandably cost $, but maybe with cubesats we’ll fill in some gaps at an affordable price (possibly delayed).
    - touisteur 4y ago
      Might also fill in with actual ATC radars (either interrogating in Mode S or listening to ads-b) or just national infra ads-b/multilateration output. These usually cost $$$.
  - mh- 4y ago
    Unless disabled, it'll also use extrapolated paths when a plane exits FR24's coverage area. It's called "Estimations", and is in the Visibility tab of Settings. By default it will show up to 4 hours of estimated positions. I can't say whether that's what was shown for this flight or not, as it won't show historical data for SPAR19.
  - lostfocus 4y ago
    I think in the past they sent out "free" receivers to areas with low coverage: https://www.flightradar24.com/blog/making-the-flightradar24-network-even-stronger/ https://www.flightradar24.com/blog/making-the-flightradar24-... while the other tracking sites tend to be enthusiasts with their own hardware only.
- implements 4y ago
  Yep, it doesn’t filter military flights (which has been interesting recently - toggle by clicking the “U” UI button)
- closetohome 4y ago
  I like to bring this up whenever FlightRadar24 is mentioned. They heavily censor their feed. Not only for military aircraft, but they also have a service where you can pay to have your aircraft hidden by the system. Personally my beef with them is that they started as a paid app, then transitioned to a subscription model and left everyone who bought the app hanging.
- coin 4y ago
  FR24 also uses a network of volunteer feeders. The difference is that FR24 uses that volunteer data and monetizes it. ADSB Exchange shares it back to the community.
jollyllama 4y ago
Flightaware is also working https://flightaware.com/live/flight/SPAR19 https://flightaware.com/live/flight/SPAR19 brought to you by the TCL coding language.

by 4cao 4y ago

nyanpasu64 4y ago

I like ADS-B Exchange and all for being a (purportedly unfiltered) data stream based off community volunteers uploading data from SDR stations (I even briefly ran a data source), but it's missing data for the middle of the flight.

4cao 4y ago
Yeah, seems they don't have much coverage in Indonesia and the Philippines. I wonder if FR24 (which was showing the flight path correctly all along) depends on private uploaders there, or do they have other data sources to fill the gaps.
- Scoundreller 4y ago
  I think they have some satellite-based connection points, and those feeds understandably cost $, but maybe with cubesats we’ll fill in some gaps at an affordable price (possibly delayed).
  - touisteur 4y ago
    Might also fill in with actual ATC radars (either interrogating in Mode S or listening to ads-b) or just national infra ads-b/multilateration output. These usually cost $$$.
- mh- 4y ago
  Unless disabled, it'll also use extrapolated paths when a plane exits FR24's coverage area. It's called "Estimations", and is in the Visibility tab of Settings. By default it will show up to 4 hours of estimated positions. I can't say whether that's what was shown for this flight or not, as it won't show historical data for SPAR19.
- lostfocus 4y ago
  I think in the past they sent out "free" receivers to areas with low coverage: https://www.flightradar24.com/blog/making-the-flightradar24-network-even-stronger/ https://www.flightradar24.com/blog/making-the-flightradar24-... while the other tracking sites tend to be enthusiasts with their own hardware only.
implements 4y ago
Yep, it doesn’t filter military flights (which has been interesting recently - toggle by clicking the “U” UI button)
closetohome 4y ago
I like to bring this up whenever FlightRadar24 is mentioned. They heavily censor their feed. Not only for military aircraft, but they also have a service where you can pay to have your aircraft hidden by the system. Personally my beef with them is that they started as a paid app, then transitioned to a subscription model and left everyone who bought the app hanging.
coin 4y ago
FR24 also uses a network of volunteer feeders. The difference is that FR24 uses that volunteer data and monetizes it. ADSB Exchange shares it back to the community.

jollyllama 4y ago

Flightaware is also working https://flightaware.com/live/flight/SPAR19 https://flightaware.com/live/flight/SPAR19 brought to you by the TCL coding language.