ADS-B is quite far away from GPS frequencies, so yeah.
ADS-B packets include coordinates from GPS as well as several values related to the estimated accuracy of said coordinates (which is how flightradar24 is reporting that they had good GPS signal throughout the flight).
This blog post has some details about the bad reporting around this story (claiming they used paper maps, and that they were circling for an hour) but it ultimately does agree that the “some issue with the GPS” reported by the pilot (the post includes radio recordings from the air and again from the ground after landing where the pilot says “GPS issues”) must in fact be some type of GPS interference.
Flight24 indicates that there was a strong GPS signal throughout the flight. Is there some other type of signal which you think they jammed instead of GPS?
you’re suggesting they jammed the pilots’ GPS but not the transponder’s?
ADS-B is quite far away from GPS frequencies, so yeah.
ADS-B packets include coordinates from GPS as well as several values related to the estimated accuracy of said coordinates (which is how flightradar24 is reporting that they had good GPS signal throughout the flight).
Which implies they were spoofed rather than jammed.
today: “Bulgarian Prime Minister Rosen Zhelyazkov told parliament that the Commission president’s plane had not been disrupted but had only experienced a partial signal interruption, the kind typically seen in densely populated areas. […] But just hours later, the government again changed its position, with Zhelyazkov holding an impromptu news conference early afternoon to revert the official line to the electronic warfare happening in Ukraine once again.”
Seems like they can’t make up their minds lol
This blog post has some details about the bad reporting around this story (claiming they used paper maps, and that they were circling for an hour) but it ultimately does agree that the “some issue with the GPS” reported by the pilot (the post includes radio recordings from the air and again from the ground after landing where the pilot says “GPS issues”) must in fact be some type of GPS interference.
Meanwhile flightradar24 says “Yes, and we’re also saying there is no evidence of spoofing. There are numerous issues that could have affected the crew’s ability to perform a GPS-based approach that aren’t related to jamming or spoofing.”
🤷
They are two different signals, jamming one signal does not jam the other.
Flight24 indicates that there was a strong GPS signal throughout the flight. Is there some other type of signal which you think they jammed instead of GPS?
There isn’t much information in this article, but I wouldn’t be surprised it was spoofing not jamming.