31–40 of 197 posts
Earlier quoted context omitted.
The cost. This affects general aviation as older planes will require avionics upgrades. Otherwise I’m excited for the sheer amount of data that will be made available to the public. Now you will be able to track all FAA registered planes
So no more low flying smugglers into and out of Canada/Mexico... wonder how they will adapt (beside going dark though they’d notice someone going dark after takeoff).
To an extent, this sounds terrifying. The first thing that jumped to my mind is that GPS be jammed or spoofed. In fact, the U.S. military in its shift away from COIN to great power competition in possibly highly contested environments is training to have less reliance on GPS: https://www.zerohedge.com/news/2018-01-26/usaf-begins-massiv... Radar can be jammed too, but I would guess the EM signature powerful enough to…
Most airplanes already rely heavily on GPS for their own navigation. If GPS is being jammed (or having any other clear issue) they'll fall back to their many other redundant navigation instruments.
If you want to be scared, be scared about spoofing of ILS signals, where a couple of dozen feet of error can be fatal.
https://arstechnica.com/information-technology/2019/05/the-r...
The same GPS the US Government reserves the right to reduce the precision when they feel like it? Seems risky idea to assume they will never do this.
Isn't low precision something like +/- 15 feet? For ATC, that seems more than good enough when they keep jets a mile+ apart. It just needs to be more precise than radar.
[1] https://www.skybrary.aero/index.php/Ground_Based_Augmentatio...
There was a talk at DEFCON about this in 2012 [1]. The main issue is a radar system gets its information from ground-based measurements, while a GPS system gets its information from air-based measurements that are later transmitted to the ground station. This means that those reports can be spoofed, or lied about, or absent entirely. https://www.youtube.com/watch?v=CXv1j3GbgLk
There was a talk at DEFCON about this in 2012 [1]. The main issue is a radar system gets its information from ground-based measurements, while a GPS system gets its information from air-based measurements that are later transmitted to the ground station. This means that those reports can be spoofed, or lied about, or absent entirely. https://www.youtube.com/watch?v=CXv1j3GbgLk
Also: Spoofing is not theoretical. It has already been done: https://www.wired.co.uk/article/black-sea-ship-hacking-russi...
The same GPS the US Government reserves the right to reduce the precision when they feel like it? Seems risky idea to assume they will never do this.
[1] https://www.gps.gov/systems/gps/modernization/sa/faq/#on [2] https://archive.defense.gov/releases/release.aspx?releaseid=...
Earlier quoted context omitted.
So no more low flying smugglers into and out of Canada/Mexico... wonder how they will adapt (beside going dark though they’d notice someone going dark after takeoff).
They simply won't turn their GPS on.
There was a talk at DEFCON about this in 2012 [1]. The main issue is a radar system gets its information from ground-based measurements, while a GPS system gets its information from air-based measurements that are later transmitted to the ground station. This means that those reports can be spoofed, or lied about, or absent entirely. https://www.youtube.com/watch?v=CXv1j3GbgLk
Also: Spoofing is not theoretical. It has already been done: https://www.wired.co.uk/article/black-sea-ship-hacking-russi...
Maybe if it's shown to be a great practical problem, they'll address it. If not, then no they won't. I'm guessing they won't.