21–30 of 205 posts
Article about what dual-frequency GPS is: https://www.zdnet.com/article/what-is-l5-precision-dual-freq... It says that GPS has added a new band (L5) that works better indoors. Combining it with traditional L1 gives better results. L5 is not fully deployed.
Support for Galileo and Glonass was touted maybe a decade ago, but there was never any massive improvement in accuracy. Same story? Even worse, Apple Maps still freezes after I leave a tunnel - I’ve been through at least 3 different models in the meantime.
I for one absolutely recall "classic" GNSS based purely on GPS. The combination of only having GPS, early slow hardware with only cold starts, young software implementations, made for quite a ropey experience. I think my first proper experience was a PCMCIA GPS card in an HP IPaq running TomTom 2, or possibly some Garmin version. Revolutionary at the time, and brilliant on long journeys, but compared to today it was…
Article about what dual-frequency GPS is: https://www.zdnet.com/article/what-is-l5-precision-dual-freq... It says that GPS has added a new band (L5) that works better indoors. Combining it with traditional L1 gives better results. L5 is not fully deployed.
My Google Pixel 6 can already do this. I can see L5 and L1 GPS satellites at the same time right now. I can also see a lot of other systems ones.
A totally excellent list of supported and tested devices is at the latter part of this article.
https://barbeau.medium.com/tl-dr-dual-frequency-gnss-on-andr...
Earlier quoted context omitted.
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.
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?
Earlier quoted context omitted.
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?
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
Earlier quoted context omitted.
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?
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...
Return to the route.
Return to the…
FUCK YOU SHORESY, I’M ON THE ROUTE.
All the better to track you with, my dear.