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What kind of deranged person messes with GPS risking to crash an airplane?
I think it’s for military protection. I had a flight canceled due to GPS jamming. I think it was to protect a U2 flight. Putin also flies around with GPS jammers.
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The DoD wants to ensure their forces can operate if GPS is down. This requirement should be reasonable to most people who aren’t pacifists. So I think the real question is, why aren’t senior level DoD and FAA bosses doing more to increase safety during the planned outages?
You can always disable GPS at the edges. Or almost always. And, for the rest, yes, they should at least be talking to each other and publishing NOTAMs when possible (and ensuring the FAA has it covered when it's a surprise drill). OTOH, would it be possible to have other location services such as Galileo, GLONASS, and BeiDou available as backups (or letting they all vote on your position)?
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From the article: "The Pentagon uses its more remote military bases, many in the American West, to test how its forces operate under GPS denial."
Wouldn't it just make sense to tell them not to use GPS?
Can someone more familiar with the situation explain why they jam GPS at all? You'd think the vast industry around the military could replace actual jamming with training aids. Even if the bespoke training tools are expensive, I doubt they're as expensive as an airliner wandering in to an active missile range. Not to mention the economic disruption to air traffic throughput.
https://www.afcea.org/content/jam-proof-signals-guide-naviga... is a good read on the subject.
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I shall consult the expert team at 4chan /s But seriously "We've been told we can't ask to stop jamming, and to just put everyone on headings." ... people inbound not ready for this can run out of fuel. Maybe the right passive aggressive response could have been to simply set a really large diameter TFR to keep civilian aircraft away assuming people check NOTAMs.
simply set a really large diameter I'm not particularly familiar with aviation, so is the radius in this comment (445NM at FL400) considered large? ( https://news.ycombinator.com/item?id=28833002 )
[1] - https://en.wikipedia.org/wiki/Temporary_flight_restriction
Are there NOTAMs regarding GPS jamming operations? It's not a fix, but maybe it would allow pilots - specially ones without sophisticated avionics like those founds in airliners(who don't rely on GPS in flight) - to prepare and/or avoid the issue.
What kind of deranged person messes with GPS risking to crash an airplane?
Earlier quoted context omitted.
I think it’s for military protection. I had a flight canceled due to GPS jamming. I think it was to protect a U2 flight. Putin also flies around with GPS jammers.
Wouldn't that mean that Putin's flights can't use GPS to navigate? But maybe he worries more about someone intercepting his plane than he does about crashing due to a navigation mistake. And his risk assessment may in fact be accurate...
> The US Army takes the safety of its operations extremely seriously. Calls for a cease buzzer are taken seriously and range control has not denied or ignored any cease buzzers.
Can someone more familiar with the situation explain why they jam GPS at all? You'd think the vast industry around the military could replace actual jamming with training aids. Even if the bespoke training tools are expensive, I doubt they're as expensive as an airliner wandering in to an active missile range. Not to mention the economic disruption to air traffic throughput.
The signal GPS uses is actually very very weak and can be jammed pretty easily just by spewing a bunch of noise in the general area of the spectrum where it lies. Military grade receivers have some countermeasures that civilian equipment doesn't (e.g. the military signals have much wider bandwidth to work with, and you can also do some antenna magic), but jamming is still a problem for them too and it's a pretty acti…
For the actual R&D stuff, I can see why they'd need to do something in the field to see how it behaves. But I would also imagine that sort of testing to be fairly infrequent with long experiment cycles.