Basically, GPS sends out high-precision timestamps (so, the clock) alongside the position of the satellites. The gps receiver uses this to calculate your position on earth. So, when you have a gps receiver, you also get a very accurate clock “for free”, which is why the aircraft uses it. It is usually extremely accurate (sub millisecond precision), so it’s nice. Perfect for accurate timing, so accurate that it counts as atomic clock in the time sync protocol computers use. But if someone is spoofing the gps, well, unlucky, your clock is wrong, too.

yup it did happen to us! it shifted 12hours into the future lol . that was before spoofing was announced. so our procedure is to set time manually and switch TERRain mode off. then if jamming still persists, we reset AESUs after jamming/spoof area. usually the GPIRS gets synched again.

That’s how it works. Those gps satellites have atomic clocks in them.

​@@midknight1978 Hopefully as the industry is now fully up to speed on spoofing/jamming, checks and procedures with regard to ADIRS will continued to be taken very seriously _at every level_ to avoid another KAL disaster (inaccurate ADIRS, straying into unfriendly territory, getting shot down.) Why can't Russia just chill the fk out, eh?

Yikes!

That's one of the 'standard' ones in that area. There are a couple of places where you will routinely expect to be 'teleported' to....the other is a point off/just in Ukraine, then there's the 'overhead Alexandria' one as well...such a pain. Then, expect a GPWS 'Pull up!' terrain call out in the cruise, always nice to jolt you from your quiet reverie.

​​@@Shrike200interesting. I tracked a flight that was supposed to depart Larnaca the other day, but FR24 showed that it had departed from Beirut instead which didint make sense. Is this the reason why?

@@Shrike200That’s why you should deselect GPS, set GPWS to OFF (caution: TERR on ND) and set the clock of the aircraft to internal. Problem solved.

Sounds like somebody in Beirut is trying to steal some drones

On the other hand INS itself, despite technology, is prone to err at a moment. The longer the flight, the larger the error. However, it is still useful.

@@crisp.3481 800 METER/HOUR ERROR- Lets see New York to Paris 6 hrs times 800m equal 4800 meters just a couple of miles. As a AME in avionics on both 76 and 757 These units run for years, (Prone to error at a moment)!!??, not from my experience of 30 years Some have mean time between failure mtbf of 50,000 hrs SOoo Also a modified laptop by terrorist set up to screw up GPS will have no effect on INS type systems

@@crisp.3481 Quite agree the old allowable error factor in the maintenance manual on a 747-400 was 3 x T + 3, so for an 8 hour flight the max error was 27 miles, but by then the ATC would pickup on the error. It was unlikely all three INU’s would have the same error and with the built in “voting” system would highlight an erroneous INS. But at least it doesn’t suffer from external tampering.

Submarines still use it to this day. No gps under water.

@@kizzjd9578 YEP

Back to basics!

A couple of degrees off in the trajectory of a hypersonic missile could make for one hell of a highly unpredictable situation.

And the pilot gagged from behind

INS and the onboard navigators sextant and Vostok\Rolex GMT watch will tell you where you are within a second or so.

That’s standard military practice. There are missiles around since Cold War that lock on radio emissions like VORTAC

They are far from actual war zone but still got affected, what will happen if the jamming is aimed at them? These is things need to be aware of when we closer to conflict.

​@@hyy3657even today RuZZia are long busy interfering with national GPS signals! Northern Norway, east Sweden, Danish Bornholm are only some regions struggling with GPS reliability. Even offshore Rescue missions have been targeted by those morons ...

Thank you!

Plz share link?

@@Flightradar24DotComwhere to watch?

@@thirushan2028 it's in the video description

To be fair they didn't really explain anything. They just described the symptoms.

@@mekowgli Yes, they did explain the symptoms and effects on a simple level really well so that every viewer can understand it

@@MajorLazer182 Sorry but I have to disagree. They demonstrated a few things, but didn't explain them. Explaining is answering the question why/how/based on what principle. Not showing an example. Letting go of a stone and seeing it fall down is not explaining gravity. It's just an illustration of its behavior. An explanation would require some minimal description of forces, mass, etc.

@@mekowgli ☝️🤓

@@mekowgli Wow you have no friends jeez

exactly my thoughts, was looking for this comment.

I think this idea pops up every year or so and dies quickly once people remember why we need humans in the cockpit

There may be reasons we’ll still want humans in the cockpit for a few more years but this isn’t one of them lol if the GPS signal is jammed or spoofed, all the aircraft needs to do is rely on other sensors (accelerometers, magnetometers, gyroscopes, barometric pressure, visual odometry, etc.) until a good GPS signal returns - exactly what the pilots here are doing with the Inertial Reference System. “How will it know it’s being spoofed though?” The same way the pilots do - in fact I’d imagining current tech is already superhuman when it comes to detecting more subtle and sophisticated spoofing attacks than the “you are now floating over Beirut” one.

@@skoto8219 I mean this is only one of many issues you are having in daily aviation business. I am not worried about cockpits without pilots. In 50-80 years maybe, but I dont think so.

I've been thinking this before. If autopilot is so great, why not? Well, I know now

This is why it makes me laugh when people say the Russians have no idea what they're doing.

@@clutchtucker They perform bad at start, be improved overtime, Ukraine reported their JDAM has dropped accuracy from mid-2023, must be something new.

They probably have a Jammer exactly at the Border, that overpowers the Signal. Airplanes could use better GPS Modules that filter out Ground Based Signals and even check if the Direction of the Satellites is correct. Kind a scary that they use the cheapest and most primitive available modules.

@@hyy3657 Looking from history since the time of USSR, they probably, more than likely, brute-force something. The words Russian and Delicate usually doesn't go together. But what do I know...

It's possible to direct signals

Maybe in non-radar environment, probably not likely in US with full radar coverage everywhere.

they will then just upgrade the gps

@@jamescollier3 Then the Soviets will just spoof that too.

I wouldn’t worry about it. As the SAS crew said GPS is just another top layer of navigation. If that’s gone or spoofed the aircraft can navigate using IRS navigation. Which is what was around prior to GPS and pretty accurate. It drifts over time but updates itself using known beacons and distance measuring equipment. It can get lost if you tell the aircraft you started in a different place but thats highly unlikely nowadays. This GPS spoofing alone won’t cause an accident. It’s a nuisance but we have procedures to follow when flying in known airspace where GPS jamming/spoofing happens. There are many layers of redundancy which keeps the aircraft safe and we’re not reliant on GPS by any means. Its a nice extra but nothing more.

I really think it's not a concern for safety that could lead to accident. GPS precision is only required for some specific approaches and it's a supplementary tool to reduce pilots workload and give them comfort in their tasks. The accuracy without GPS is still very good and approaches requiring that can also be flown the old way with instruments. What these jammings etc do is that it is super annoying. Imagine all these satellites and technology to erase the need to manually make times record and calculation and do the estimations for time with an extreme precision without doing anything, just to have it failed and go back to work the old way with a watch and calculation tables... Frustrating. Adding to that many systems including the entertainment system providing live flight data and modern communications to passengers fail. And even if systems have back up, they trigger alerts. The terrain warning at cruise altitude is just not logical. 35 to 40 thousand feet of altitude, there is no terrain. Pilots as the ones seen are just annoyed and as long as the alerts do not require procedures or checklists do not do anything as it's not a real concern. Navigation in these aircrafts are based on an inertial refence system with multiple backups. GPS is a real extra but not vital. Even without any navaids nor radar control or even ADS-B in an area, the navigation is based on the inertial system which is safe and redundant. The terrain warning can be confusing in climb, descent and approaches but wether it's false or not, the escape terrain manoeuver is mandatory except if visual reference is established where it can be ensured visually that terrain is not a concern (in this case pilots disregard the warnings that's the procedure and it never causes issues, it's like VFR but with a jet) But the jammings happen in cruise and approaches and climbs in terminal areas rely on radar control, or ADS-B or even the way of position report to give position to control is sufficient to avoid terrain and navigate well. This is exactly as if you're loosing connection with your 4G or 5G in your car on the highway with alerts on your car. That's all. Technologies can be very comfortable but they are weak and when you're used to it, it's very frustrating. A former private pilot.

What do you mean?

INS FROM factory is standard on Boeing 2 and Airbus 3

ILS are very much in use, but they require infrastructures on the airport. Small airports might just dont use ILS and rely on visual approaches or GPS based approaches

@@SodaWithoutSparkles Don't forget there are Jepson charts that have routes that are followed (in any usually jet aircraft on long routes not usually on Cessna pleasure a/c

I was thinking the same (about checking the time). Whatever jamming or spoofing there is shouldn't affect my $20 Casio watch at 38,000 feet.

Yes, all calculations regarding position of a receiver are made inside that receiver. It's really easy to jam because signal sent by satellites is weak.

They will all be susceptible to the spoofing, except the military GPS frequencies which may only be susceptible to jamming because the algorithm behind the signal is classified. But it would be interesting to see if all the systems are actively spoofed in the same way right now. My Garmin watch supports GPS, Galileo & Glonass, so it's reasonable to think some jammers also support multiple systems.

İts above like sattelites

They're so far only jamming GPS so those aren't affected, but from technology standpoint those are just older and more vulnerable systems.

If you are flying a pure VOR-DME approach you shouldn't be affected by the jamming. Instead if you are flying an RNAV overlay approach then you are using GPS coordinates, and you will be affected. Nowadays the GPS based approaches are built ad hoc, not necessarily following the track of the old non precision approaches. To have an idea you could take a look at the RNP (AR) approach built for Katmandu and compare it with the VOR approach, you will clearly understand what they have done there.

Just fly it in basic modes. Hopefully the pilot still has the skill to do this as opposed to flying the magenta line,

So far only GPS for civilian aircraft.

@@flo3467 There are some B737 in Air China been modified with Beidou AFAIK, probably other providers in small number here and there as well, but all very similar technology anyway, they can also easily been jammed if targeted

@@umi3017 Then the Chinese CAA certified it I suppose, not a huge surprise. Maybe GLONASS is being used in Russian planes as well, but GPS is the only system certified worldwide so far, probably won't change in the near future. Some enhancements are certified on top of GPS as well, for example EGNOS in Europe.

@@flo3467Airbus planes use Galileo as well as GPS - since Airbus is partly responsible for it. Boeing planes do not because it wasn’t approved by the FCC until 2018. Maybe newer ones do now idk.

Maybe, but it couldn't be used to detect the actual location. It would be like trying to see a firefly while you're staring at a car with their headlights on or listening to a bird while a ship is sounding its fog horn.

hi brunonikodemski, have you become a flat earther yet? If not I suggest viewing the 13 part series _what on earth happened_ in my about to learn how the earth is not a globe

@@flat-earther Jeez, Cmon, for Gods sake, get some physics lessons, and take an orbital flight. It is people like you that turn reality in some kind of twisted thing in your own minds. As for the Gods, I pray to them all, just in case. Sometimes they answer back, with practical suggestions. PassItOn.

Unrelated issue.

yes, but u can tune one or two VOR nearby and once you are exactly overhead one you can update the aircraft position.

They would not be immune if there is jamming in the area.

Don’t they use GLONAS ?

@@rorhug They mostly still fly west planes

Russians could ask for the jamming to be turned off unless the Ukrainians are jamming too.

Gps has very, very accurate time-keeping. In the old days when GPS wasn't that accurate in position, you at least had an accurate time indication.

yeah they mean all

It's theoretically possible as long as the missile is close enough to distinguish between the signals. I'm not sure if current missiles are designed for this--most are designed to detect radar frequencies which need to be much stronger. If the missile were very far away, the signal from the satellites would be almost as strong as the signal from the jammers. I'm sure the altitude of the missile and curvature of the earth would come into play to decide how close you would have to be. All GPS satellites transmit on the same frequency; the jammer/spoofer would too.

@@nathanbanks2354 If several drones were used. One could trilaterate and find the offending transmitter(s).

Agricultural aircraft equipment in the USA use gps guidance down to sub meter accuracy. Agricultural ground equipment in the USA use gps guidance down to inches in accuracy.

We european ahave our now GPS now called Gallileo but i guess its jammed as well by the russians

Both military and civilian are impacted

military is definitely affected, that is the main reason why the jamming is happening. weapon systems like the Excalibur shell went from 70 % accuracy for Ukraine in 2023 to 6 % same with himmars are down to around 15 % now. there a lot more systems the Ukrainian use that are effected and its not only GPS jamming, probably one of the few competent Russian military formations is their EW

The inop sys is RNP AR at 2:54, maybe they are not operating at airports that make use of it.

GPS is also a time source because atomic clocks are used on the GPS satellites. The precise time is required to figure out how long it took the signal to get from 3-4 satellites to the receiver and where the satellite was in its orbit when it sent the signal. My Garmin watch can also set its time by GPS as well as by connecting to a phone using bluetooth. How would the plane get internet? If it had starlink, maybe it wouldn't be jammed, but I think starlink and other satellite internet providers also use GPS to figure out which satellite or antenna (for geostationary satellites) it needs. Any watch set within the last day would have good-enough time for a flight & communicating with air traffic control. The super accurate times are only needed for navigation.

Wait, you think that GPS satellites are using Internet? They can encrypt radio signals but it's slightly different than internet encryption. but if they decided to start using encryption at this point, they would have to possibly replace existing satellites and receivers or have two different signals. Not only that but all receivers would have to use the same encryption key or rolling encryption which could still be hacked.

​@@mediocreman2 You're right about GPS not being internet. Note that the 2nd military band of GPS is still encrypted. The civilian broadcasts are on 1575.42 MHz, while military also uses 1227.60 MHz. The different wavelengths refract differently in the upper atmosphere which can increase the accuracy. To my knowledge, no one has been able to decrypt the military signal, though WAAS was used to undo the inaccuracies intentionally added to the system in the '80's & '90's & now it still corrects for distortions from the upper atmosphere. This means advanced military hardware that uses both frequencies can't be spoofed, though the signal could still be blocked.

@@mediocreman2 -I never mentioned "internet". Adherence to a protocol like NTP doesn't necessitate that the underlying packet system use TCP/IP, if that's what you're referring to by "internet".- Ah, I didn't realize you were responding to another person's comment, since you didn't tag them. Apologies.

@@nathanbanks2354 Is its internal clock incapable of keeping time adequately? I imagine that if it's staying at a relatively stable altitude, any time dilation it experiences in comparison to the satellites' atomic clocks' would be in the milliseconds at best?

Yes.

Yes, the autpilot keeps navigating thanks to inertial data and signals from ground based navigation aids (VOR and DME). In case of spoofing, if you start experiencing map shift (the airplane captures a fake GPS signal that makes it think is in a different position at a different time), you may need to ask ATC for headings to navigate. But the autopilot will never disconnect.

But if you get map shift then the autopilot will turn and try to get you back on track, which is the wrong track. I recall this happening to a business jet over Iraq a few months ago. It decided that it was over Iran and made a big turn to get back on track. Basic GPS jamming life you enjoy over Turkey doesn’t really affect navigation.

@EdOeuna indeed I mentioned that in that case you may need to ask headings to ATC, hence you will be choosing a more basic mode of the autopilot (called Heading select in Boeing airplanes)

Read in another comment that it's an unrelated issue.

Yes it did.

Unrelated issue.

It was already inop before

Military has encrypted Signals, so Spoofing shouldn't be possible with Military Crafts like in the Movie. Although they claimed that they cracked that in the Movie.

Pretty sure the RuZZians are jamming the frequencies if those positioning systems as well, just to be sure.

BTW isn't that illegal to no have a cup cap on??

ok, by the looks of it i knew this had to be an Airbus

Thanks

At times that will be the case during cruise when the Captain is resting. On long flights everyone takes equal periods of rest to stay fresh.

Want to try?😂

@@olegcolva3025 Ukraine already does it lol

@@masterman1502 this video proof it 👌

In case of war, all navigation satellites will be destroyed first.

No. They can use directional antennae.

They dont use Gps ,they r using another system

@@northstar5934 They use GLONASS

It's the russians. Due to Ukraine's use of JDAMS and GLSDB's, among other things

​@@bricktopperheadon5490 You don't think it's only Russia do you? Lot's of comments on here about Cyprus and Lebanon, who do you thinks behind that and which country is likely to have provided the technology?

I can’t recall having GPS issues flying into or over Israel but I’ve always had GPS issues flying into Beirut.

I think the goal is to deny civilian GPS systems from being Weaponized. Whether it’s an off the shelf drone, a civilian aircraft or mobile phone these are all dual use products because of their ability to self locate. In the case of the Ukraine, Russian conflict, it is most likely the Russian army is jamming civilian GPS. This still leaves available the encrypted military GPS signals. But denies Ukraine the ability to buy cheap drones from China and tack on a civilian GPS. The same can be said in the Israeli, Hamas conflict. Israel is definitely jamming GPS and spoofing GPS in order to deny civilian GPS guided munitions from being used effectively. In essence, denying Hezballah’s hundred-thousand rockets from being used against Israel. This jamming doesn’t affect Israeli military GPS systems.

@@matthewk4930 Civilian drones fly no problem with out GPS ,you have a video feed

No, pilots are aware of the situation and can fly the plane just fine without the GPS. They use the inertial reference system (IRS) instead. There is no need to worry.

@@cptcrogge thanks a lot,anyway this madness should stop asap

Not to worry they don't check Facebook inflight 😁. There are various apps loaded onto the iPad that they use for flight planning etc.

@@Flightradar24DotCom Thank you fpr the explanation...Aviation has come a long way since Wilbur and Orville!

yay