Radarspotting

Perhaps of interest: This Global Express "visited" AMS recently on ADSB-exchange..but not in real life.

Its data on the website seems manipulated. Real flights are blocked and have been replaced by fake flights.

More info here:
https://forum.scramble.nl/viewtopic.php?p=1106161#p1106161

Interesting, thanks for the heads up.

I wonder if anyone saw this "flight" on their local receiver?  Or only from a spoof feed to ADS-B Exchange?

No, it was not seen by local receivers this time.

Last year the aircraft visited AMS once, on 21-08-2024, and then my own and some friends' SBS's picked it up, but ADSB-exchange showed it flying HAJ-MAD-HAJ !

I posted about it on their forum as well. Their system must either be hacked or ....somebody has a very special subscription.

https://adsbx.discourse.group/t/bogus-tracks-gl7t-d-aglo-3c5d8f/848

But let's not jump to conclusions yet. Their engineers were to have a look at it.

Thanks.

My guess is "spoof" data injected by an ADS-B Exchange feeder.

Probably, but it is not only flights added...the real flights are invisible. Which makes me wonder if adding a flight obscures a real flight if the adsb-exchange software rejects data from a position too far from where it is assumed to be flying..

My guess is ADS-B Exchange rejects the less frequent/reliable data in favour of the better quality.  The spoof data may be deemed better quality.

use multiple online means to check if the flight is there. Since ADSB was sold of they can do what they want with data. Freedar is the only one who does not block aircraft or data.

I use the following.
FR24.
ADSB.
Freedar.
SBS puck.
Donyradar.

As well as spotter forums at airports around the UK.

My military database is free from errors and is never mixed with online sharing of the feeds above.