iPhone 14 Pro comes with dual-frequency GPS

Re:iPhone 14 Pro comes with dual-frequency GPS by yababa_y on Saturday September 10, 2022 @11:02AM (#32791236)

The short of it is that for the past two decade or so the us govt has been rolling out a new signal that the latest series of GPS satellites transmit that uses 1. more bandwidth, 2. more transmit power, 3. in a protected region of spectrum, 4. using modern encodings and error correction. This makes it a lot easier to pick up the signal from noisy environments.

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Re:iPhone 14 Pro comes with dual-frequency GPS by toomuchtodo on Saturday September 10, 2022 @11:17AM (#32791388)

Are there any specific use cases where this will see outside benefit (urban areas)? Or is it just faster fix and higher precision without PPS/RTK?

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Re:iPhone 14 Pro comes with dual-frequency GPS by anotherOneSound on Saturday September 10, 2022 @11:22AM (#32791442)

inside of the mall when your weather widget pulls your location every 5 minutes they will better know what stores you went in to in what order

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Re:iPhone 14 Pro comes with dual-frequency GPS by dylan604 on Saturday September 10, 2022 @01:07PM (#32792483)

Wouldn't the WiFi and Bluetooth beacons provide more accurate and more granular points of data than polling GPS for this purpose?

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Re:iPhone 14 Pro comes with dual-frequency GPS by capableweb on Saturday September 10, 2022 @01:36PM (#32792750)

That would require calibration (this is the layout of the store, the receiver is here, reflections can occur here and so on) while a GPS system would allow owners to just connect to a centralized app and bam, here is where all your visitors walked for the last 3 months.

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Re:iPhone 14 Pro comes with dual-frequency GPS by dylan604 on Saturday September 10, 2022 @01:57PM (#32792920)

wow, that's your retort/sales pitch for GPS only tracking? it truly needs some work.

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Re:iPhone 14 Pro comes with dual-frequency GPS by capableweb on Saturday September 10, 2022 @01:59PM (#32792934)

Nope, it's simply information, free for everyone to read :) I'm neither selling or arguing for/against anything.

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Re:iPhone 14 Pro comes with dual-frequency GPS by JustSomeNobody on Saturday September 10, 2022 @11:38AM (#32791577)

Made me chuckle because it's so true...

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Re:iPhone 14 Pro comes with dual-frequency GPS by throw0101c on Saturday September 10, 2022 @12:03PM (#32791822)

> Are there any specific use cases where this will see outside benefit (urban areas)?

When you only way have one radio signal from a satellite, it is impossible to tell how the ionosphere has effected the signal.

When you have two, and each a slightly different frequency, you can model signal path changes and apply some corrections for better general accuracy.

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Re:iPhone 14 Pro comes with dual-frequency GPS by fsh on Saturday September 10, 2022 @11:38AM (#32791575)

Dual-band GPS allows detecting (and correcting for) multipath interference, i.e. signals bouncing off building and being received multiple times. This should improve accuracy in cities a fair bit.

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Re:iPhone 14 Pro comes with dual-frequency GPS by tiernano on Saturday September 10, 2022 @11:20AM (#32791423)

based on the keynote, they say it will be better in "urban jungles". It was part of the Apple Watch Ultra and said it worked better for the Boston (IIRC) Maraton. I would hope for the phone it works better for navagation in Car Play... I dont know how many times my phone things, when driving forward, that im turning down a side road...

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Re:iPhone 14 Pro comes with dual-frequency GPS by js2 on Saturday September 10, 2022 @11:53AM (#32791733)

Chicago Marathon. The Boston marathon is mostly a very open path.

Source: I watched the keynote and I’ve run both.

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Re:iPhone 14 Pro comes with dual-frequency GPS by hinkley on Saturday September 10, 2022 @11:39AM (#32791587)

Return to the route.

Return to the…

FUCK YOU SHORESY, I’M ON THE ROUTE.

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Re:iPhone 14 Pro comes with dual-frequency GPS by willis936 on Saturday September 10, 2022 @01:51PM (#32792870)

That last bit is a software issue. Apple maps is constantly trying to route me to a parallel street for 1 block in a city and it actually thinks I listen to it. Google maps doesn't have either of these behaviors on the same hardware/APIs.

No, a more accurate GPS will not fix Apple's bugs.

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Re:iPhone 14 Pro comes with dual-frequency GPS by tiernano on Saturday September 10, 2022 @05:30PM (#32794724)

I'm using waze, not Apple Maps

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