We always think of [Scott Manley] as someone who knows a lot about rockets. So, if you think about it, it isn’t surprising he’s talking about GPS — after all, the system uses satellites. GPS is used in everything these days, and other forms of navigation are starting to fall by the wayside. However, the problem is that the system is vulnerable to jamming and spoofing. This is especially important if you fear GPS allowing missiles or drones to strike precise targets. But there are also plenty of opportunities for malicious acts. For example, drone light shows may be subject to GPS attacks from rival companies, and you can easily imagine worse. [Scott] talks about the issues around GPS spoofing in the video, which you can see below.
Since GPS satellites are distant, blocking the signal is almost too easy, sometimes happening inadvertently. GPS has technology to operate in the face of noise and interference, but there’s no way to prevent it entirely. Spoofing — where you produce false GPS coordinates — is much more difficult.
Of course, jamming or spoofing GPS is highly illegal, and it is easy to locate jammers, so most people doing this will be state actors and military units. Don’t try this at home. But it does happen, and [Scott] mentions how warnings appear to alert pilots of areas where GPS may be unreliable due to jamming and spoofing.
There are anti-jamming countermeasures you can employ. But things like this tend to be leapfrog situations, where jammers will overcome the countermeasures only to face better countermeasures they’ll have to overcome again later.
As you might expect, this isn’t a how-to video, bu ..
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