Nice article and lovely piece of kit that one from sparkfun. Will likely be getting one next year to further my experiments with gunshot localization, on my Pi-based sound localization platform (<a href="https://github.com/hcfman/sbts-aru">https://github.com/hcfman/sbts-aru</a>). Though at the distances I'm localizing the phone based GNSS seems to be working quite well.<p>With an RTk GNSS though I could do some experiments with localizing bat calls. I've tested the Pettersson Ultrasonic microphones with my localization platform and that works fine. I suspect that the bat localization I could achieve if my co-ordinates had RTK accuracy would be pretty damned good! But I have to try it to know.
Reminds me of a post I saw sometime ago: <a href="https://bendauphinee.com/writing/2023/12/30/to-know-where-you-are/" rel="nofollow">https://bendauphinee.com/writing/2023/12/30/to-know-where-yo...</a>
>standalone GPS prices will be as staggering as real camera prices<p>Camera modules are dirt cheap, as are GPS modules. It's the screen and CPU to drive it that are expensive.<p>My unlocked Motorola Power G phone was only $200, which included both gps and a camera, along with enough CPU and battery to do everything I need. I assume there's no subsidy in that price.
(2022)<p>'Native GPS precision/resolution in Civilian mode is 30m; a 5 minute average can improve that to 5m'.<p>My iphone 15 mostly shows an error of 15 - 20 m inside and 8 - 12 m when I go outside. Never tested staying outside 5 min at one spot though. Still, it seems my current phone (late 2023) is more accurate than to be expected from this article?