Iran Dumps GPS

[Maxmars]

...

that's what you need the ciphers for to unlock the extra timestamp data

That's where the magic of commerce comes in...
I mean, the data is part of the stream....
but you can't actually "have access" to it.... that's someone else's "property,"  yeah?

Oh well... I suppose if there are two systems... invest the resources and make the one you want to use better... aim for the best....I bet you end up with your problem solved.

[Signal Witch]

isn't using gps passive? meaning there's no way for the people running the satellites to get information on who is using it.

as far as i know?

but if they switch all their infrastructure to something else, they can deploy blanket jammers or things that spoof gps signals without messing anything up.


edit: also to note that usually gps is processed by special-purpose chips, and i would not be surprised if there are weird things or back-doors in those! same thing with the chips that interface to china's system, i imagine. so does iran have the infrastructure to make their own signal processing asics? probably, but it would likely be much easier for them just to use something from china...

You're right, GPS is passive. The satellites just broadcast, and devices receive. But the real risk isn't the signal itself, it's how and where that signal gets processed. If Iran's gear uses Western-made chips or software, there’s a chance of surveillance or backdoors baked in. That’s the concern.
By switching to BeiDou, Iran can:

• Jam or spoof GPS without hurting its own systems
  
• Drop reliance on US tech
  
• Align more with China’s ecosystem, where they feel they have more control
  

As for chips… yeah, GNSS is usually handled by specialized ASICs. Iran could probably make their own, but it's faster and easier to just adopt Chinese hardware, even if that carries its own risks.
Basically, they want to reduce their dependence on Western tech at every level. It's about cutting out external influence and making sure every part of their digital and communications systems is trusted, or at least under friendly control.

[IDELB2006]

The average person isn’t even aware that it’s a thing though and is perfectly happy with the accuracy of any system they use normally.

That may be true, I end  up dealing with the ones who hold it as gospel, and it ends up costing them thousands of dollars.

I was more trying to point out there are commercially available systems that are very accurate.Also,  The Chinese satellites have been available for years. If Iran does not have systems capable of using all available satellites, it is there own fault. 

Basically all the different constellations work on the same principle. Each individual satellite broadcasts I am at xyz at this time. Any GPS receiver is just an antenna that uses the signals received from multiple satellites, and it triangulates its position from those readings.

To achieve even just the 1 meter accuracy, you need the dual frequency receivers, and enough satellites.to calculate your position.

[BeyondKnowledge]

I see this as a win. We are now free to interfere locally with other navigation systems in that area without degrading our own. 

It will not affect any system using GPS navigation as the targets already have fixed locations. And any on the fly targeting will only be more accurate on the  target.

Thank you Iran.

[Signal Witch]

I see this as a win. We are now free to interfere locally with other navigation systems in that area without degrading our own. 

It will not affect any system using GPS navigation as the targets already have fixed locations. And any on the fly targeting will only be more accurate on the  target.

Thank you Iran.

BeiDou might be tougher in some ways, especially in its own region. China built it more recently, with electronic warfare in mind from the start. It’s got encrypted signals, stronger regional accuracy, and some features GPS doesn’t have. But GPS is still more globally integrated, and with the newer GPS III satellites and M-Code, it’s catching up fast. In a direct comparison, BeiDou could have the edge in localized resilience, but GPS still rules the global game.

So, it’s not a clear win for the West, it’s just a shift in the game board.

[Kwaka]

Sounds like a smart move by Iran with Israel more of a direct threat than China. Now they can go hard on anti GPS systems in their region without disrupting their own capability, should the most likely risk of conflict surface?