Curious about the other areas than near Russia where jamming seems to occur: Myanmar and Kashmir(?)
Flightradar24's new GPS jamming map
111–120 of 299 posts
Re: Flightradar24's new GPS jamming map
#112Is that Perth with a great big red blob as well?
I don’t think I am misreading the map - what on earth is that? Are the sheep rebelling and have some decent anti-aircraft tech?
Re: Flightradar24's new GPS jamming map
#113Why in the world is there so much jamming in Turkey? What's going on?
To the north is the Black Sea, and the Russia-Ukraine war. To the east is Armenia and Azerbaijan (as well as Iran). To the south is the middle east. Also Cyprus with the frozen conflict, there.
In addition to Armenia/Azerbaijan, Turkey has had a significant internal conflict with the PKK (Kurds) in the East/South East for... a very long time.
Also that whole region is just patchy with flight data - it makes it difficult to really see the true shape of jamming.
Re: Flightradar24's new GPS jamming map
#114Earlier quoted context omitted.
ADS-B is only commercial flights? I thought many kinds of flights are broadcasting. Does Flightradar24 only track commercial flights?
I doubt there’s any private flights over Ukraine too. Military planes generally don’t advertise their location in combat zones
> Military planes generally don’t advertise their location in combat zones
They might if they are from countries neutral to that conflict, like NATO flights over the Black Sea.
Re: Flightradar24's new GPS jamming map
#115https://www.flightradar24.com/data/gps-jamming Also: https://gpsjam.org/ | https://hn.algolia.com/?q=gpsjam (am I missing any other GPS jamming mapping or data collection projects?)
Worth adding that gpsjam does the exact same thing with ADS-B data.
Re: Flightradar24's new GPS jamming map
#116A lot of jamming going in Easter Europe. I wonder who's doing that?
Russians? However, isn't Russians jamming common signals in other states' territory an act of war?
Re: Flightradar24's new GPS jamming map
#117If line of sight to the jamming antenna is required to be jammed, why do aircraft not have a downwards shield so that they only receive GPS signal from the sky (satellites) and not from jammers (coming from the bottom hemisphere)? Or is the jamming signal so many orders of magnitudes stronger than the satellites that there's always going to be some gain no matter how good the shield is? Ok it exists, but shielding is…
I thought GPS signals from space were incredibly weak. Limited power budget + 100km in the sky. Seems trivial for a ground based system to crank up the watts to whatever arbitrary limit they desire.
True, signal per satellite is only around 150-160dBW on earth despite them radiating at 25W. Satellites are ~20000km away. If a jammer is 100 times closer (200km), they need to use only 1/10,000 (1/100^2) the power, so it's very easy to jam sadly.
Re: Flightradar24's new GPS jamming map
#118Re: Flightradar24's new GPS jamming map
#119What if this Russian jamming crap causes another major loss of life like MH17? We really have to do something about this.
Re: Flightradar24's new GPS jamming map
#120Earlier quoted context omitted.
So I'm a little skeptical on that front because military aircraft are still not that often broadcasting ADSB even during routine flights, at least in my (also close to the border) region. In theory the Air Force was supposed to have completed ADSB installation on their fleet last year but they blew the deadline pretty bad on even installing transponders, and of course they still reserve the right to disable them duri…
How does not having ADSB impact air control?
ATC is used to working with military aircraft without ADSB since it's been the status quo (and keep in mind that ADSB is not required on aircraft in general, although the set of airspace situations in which it's required has been expanded over the years to become a de facto near universal mandate). But the FAA doesn't like it, which is why they set the deadline for the Air Force to install ADSB, which the Air Force missed.
Military aircraft on military maneuvers don't deal with FAA ATC, the military has its own controllers. It's mostly an issue when they're operating near civilian airports (or the many, many military facilities that share an airfield with an airport). There are still adverse safety impacts to the lack of ADSB on many military aircraft, in that it defeats things like TCAS.
Actually this topic is slightly complex and I think a lot of people have misconceptions, so let's lay it out. These rules have gotten stricter and stricter in recent years.
1. ADSB is not required. Meaning, there is no universal requirement that aircraft be equipped with ADSB, and plenty of aircraft still legally operate without.
2. ADSB is required in class A, B, C, in many cases in class E, and within the "Mode-C veil" surrounding major airports.
3. ADSB is required in any case where a transponder is required, for those edge cases that are not included in the above.
4. The result is that the areas in which you can legally operate without ADS-B are mostly limited to low altitudes in rural areas. Of course, this encompasses a large portion of hobby aviation especially, but not very much commercial flight.