Re:iPhone 14 Pro comes with dual-frequency GPS
by stjohnswarts on Saturday September 10, 2022 @04:06PM
(#32794184)
How long ago was that? I never remember it taking more than a minute or so to get a good fix with GPS devices. I'm talking about Garmin devices.
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Re:iPhone 14 Pro comes with dual-frequency GPS
by sorenjan on Saturday September 10, 2022 @07:44PM
(#32795484)
The first GPS device I used didn't have any built in maps, only a breadcrumb trail on a monochrome LCD display. It used AA batteries and it was before selective availability was turned off, so accuracy was quite poor compared to today. Late -90s, so around 25 years ago now. If I recall correctly it was a Garmin 38.
Re:iPhone 14 Pro comes with dual-frequency GPS
by nradov on Saturday September 10, 2022 @09:26PM
(#32796042)
Garmin devices have supported downloading satellite ephemeris data from the Internet for several product generations. This greatly accelerates getting a GPS fix. Some models will also get an approximate location via Bluetooth from a paired cell phone.
Long fix times are still an issue today with cameras that lack connectivity.
Re:iPhone 14 Pro comes with dual-frequency GPS
by glenngillen on Saturday September 10, 2022 @06:36PM
(#32795122)
I had a Garmin Forerunner (I can’t remember the number, 425 maybe?) circa 2007. IIRC it was one of the earliest on-wrist GPS devices Garmin did. Most of the time it would only take a minute. There would be occasions where it took much much longer. Increasingly so by the time I retired in 2018.