iPhone 15 Pro GPS is worthless!

[azerik]

Let us know how it goes bc I was thinking of doing that tomorrow.

Prior to ‘the wipe’

Oddly I usually park in my garage, not my neighbors driveway.

Not looking promising though. I had to put my phone back into PaaK as that no longer worked as well.

Something bothering me is the 'direction', that blue cone, is 120 or so degrees off of reality when I'm walking around. Even in my driveway just walking the property line it's pointing all over the place and jumping 10 to 20 feet around the yard.

Planning my trip tothe apple store next. Maybe they have a diag for this.

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[Kamuelaflyer]

To be fair, swimming in the Pacific is only a couple streets over for you. If it said I was swimming in the Pacific that would be much worse.

Indeed. The worst case was a week or so ago in Hilo, where the car was suddenly several miles offshore, followed by driving through a shopping center (not the parking lot) etc, etc.

I know CarPlay is supposed to use my car GPS, but my guess is the car GPS is getting dropped in the connection due to either a phone or car issue

The vast majority of the nearly three years I've had an MME CarPlay has worked fine. On the occasion where it's been really bad, it's pretty much always been an Apple issue. We shall see this time (sooner or later)

 

[azerik]

the app or the gps is sleeping after a minute or two. I left maps open and just locked the screen for a minute, then opened it back up. I'm sitting at my desk in the front of the house. Does the same if I'm on the lawn 25 feet further out. Couple this with the possibility it's bouncing back and forth with my watch gps as well, which I think is the cause of the sudden left right movement (not in this video)

 

[azerik]

Confirmed still crappy.
Left my watch at home, tried every 'trick' I know to get it to work well but it still just bounced all over the place.

 

[txaggies07]

Confirmed still crappy.
Left my watch at home, tried every 'trick' I know to get it to work well but it still just bounced all over the place.

Dang. I just checked my compass and it shows me off 140 degrees. Google/Apple maps are off by 40 degrees.

 

[Jimrpa]

No clue. It’s in my pocket while walking.

it’s also not consistent. Sometimes it's right on the mark then a bit later it’s saying we’re swimming in the Pacific Ocean. It’s consistently inconsistent in both the Raptor and the MME though.

Interesting. I found an app to display raw gps data from my iPhone and you can get Ford’s raw gps from bezel diagnostics. The two aren’t precisely accurate, but I’m not enough of a math wiz to figure out how big the differences are ?

 

[Kamuelaflyer]

Interesting. I found an app to display raw gps data from my iPhone and you can get Ford’s raw gps from bezel diagnostics. The two aren’t precisely accurate, but I’m not enough of a math wiz to figure out how big the differences are ?

There are all sorts of errors GPS can have before we even account for the vehicle it’s in. It can be detuned by the US military (cause they’re ours and we can), receivers have errors, the signal can be jammed by various governments (ask anyone who’s flown into Tel Aviv as a pilot for example). Add in the inherent problems with being in an aluminum tube or steel box (airplane or car) plus software issues related to GPS or even unrelated and it’s a wonder the things are even aware it’s on the third rock in the solar system.

Still more accurate that other stuff though. Well, unless you’re being jammed.

 

[Melancholy1980]

I have a 14 pro and the gps always worked fine until an iOS update that seemed to suddenly make it lose position often. It seemed to have about halfway through iOS 16, maybe 16.6 or so. It’s never been right since. It could be a coincidence but it’s odd to me that for a year prior I never had a problem.

 

[azerik]

I think right around the last 2 versions of IOS16 they really started screwing with the GPS. Mine would freak out on my 12. 'Fast forward' to the 15 and it's always been wonky.

I was able to find an app to pull the GPS data and it'd randomly say i was doing .48mph in some direction and the GPS 'clarity' was between 14 and 140 horizontally. Vertical was always .16ft. It'd go through periods of 'better' but it was moving every second.

 

[Jimrpa]

There are all sorts of errors GPS can have before we even account for the vehicle it’s in. It can be detuned by the US military (cause they’re ours and we can), receivers have errors, the signal can be jammed by various governments (ask anyone who’s flown into Tel Aviv as a pilot for example). Add in the inherent problems with being in an aluminum tube or steel box (airplane or car) plus software issues related to GPS or even unrelated and it’s a wonder the things are even aware it’s on the third rock in the solar system.

Still more accurate that other stuff though. Well, unless you’re being jammed.

So that would substantiate why Apple would use the car's GPS information, when available ?
I knew some of the people who built one of the more recent blocks of GPS satellites. The way the system works is pretty amazing (and requires lots of math that I, as a lame PM, was incapable of understanding).

A long time ago, at a place far, far away, I had the opportunity to play with a GPS receiver that was a drab shade of green and was pretty indestructible. We were really amazed that we could hold this "little" box and know where we were to within a few meters ?

Now, my Apple Watch can give me my location to within a few feet ?

 

[Jimrpa]

There are all sorts of errors GPS can have before we even account for the vehicle it’s in. It can be detuned by the US military (cause they’re ours and we can), receivers have errors, the signal can be jammed by various governments (ask anyone who’s flown into Tel Aviv as a pilot for example). Add in the inherent problems with being in an aluminum tube or steel box (airplane or car) plus software issues related to GPS or even unrelated and it’s a wonder the things are even aware it’s on the third rock in the solar system.

Still more accurate that other stuff though. Well, unless you’re being jammed.

Oh, and fun fact - many GPS receivers nowadays use both GPS and GLONASS (personally, I have kind of ethical objections to using GLONASS, but pragmatically, using multiple systems is another way to reduce error and improve accuracy).

 

[Jimrpa]

Prior to ‘the wipe’

Oddly I usually park in my garage, not my neighbors driveway.

Not looking promising though. I had to put my phone back into PaaK as that no longer worked as well.

Something bothering me is the 'direction', that blue cone, is 120 or so degrees off of reality when I'm walking around. Even in my driveway just walking the property line it's pointing all over the place and jumping 10 to 20 feet around the yard.

Planning my trip tothe apple store next. Maybe they have a diag for this.

I have that problem with the Ford System. I refuses to admit that my car is parked at my house. My car is always parked at my neighbor's house. Apparently, there's some weird "snapping" to an invisible grid going on.

 

[mdolan92869]

There are all sorts of errors GPS can have before we even account for the vehicle it’s in. It can be detuned by the US military (cause they’re ours and we can), receivers have errors, the signal can be jammed by various governments (ask anyone who’s flown into Tel Aviv as a pilot for example). Add in the inherent problems with being in an aluminum tube or steel box (airplane or car) plus software issues related to GPS or even unrelated and it’s a wonder the things are even aware it’s on the third rock in the solar system.

Still more accurate that other stuff though. Well, unless you’re being jammed.

You forgot about (or maybe didn’t know of) the rollover error every 19 years or so. The field holding the date counts up, then rolls over to 0 and starts over. If your receiver isn’t smart enough, it’ll timestamp things wrong, like the photos you took on vacation at the Grand Canyon. Not that I’d have any sort of personal knowledge of that happening. ?

GPS Roll Over

 

[Kamuelaflyer]

Now, my Apple Watch can give me my location to within a few feet ?

15 hour flight, literally halfway around the world. Arrive after dodging thunderstorms towering to 60,000 feet plus. Awake for almost two days and land in a damn blizzard with visibility around 1/2 mile in snow and 35 knot crosswinds. Block in at the proper gate, exactly on centerline and stopped within 2 inches of the stop line and the GPS tells me I’m 3 feet off course. Thank you, you electronic nagging Ferdinand Magellan, go talk to the spinning down INS gyroscope.

 

[Kamuelaflyer]

You forgot about (or maybe didn’t know of) the rollover error every 19 years or so. The field holding the date counts up, then rolls over to 0 and starts over. If your receiver isn’t smart enough, it’ll timestamp things wrong, like the photos you took on vacation at the Grand Canyon. Not that I’d have any sort of personal knowledge of that happening. ?

GPS Roll Over

Beyond my pay grade.

My GPS receiver was whatever Boeing stuck in the airplane. That in turn was determined by how much my employer was willing to pay. If they could’ve gotten away with us sitting on orange crates while using a whiskey compass and following steamships, we would’ve been doing that. Absolutely, Positively.

As for my iPhone 15 ProMax, I got stuck with whatever Apple had laying around when it was thrown together, despite actually paying retail for it.

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