Re: SBC hardware for stratum 0

[Brent Wood]

Which U-BLOX?

I have found USB GPS units based on the the U-BLOX 7 to be common & reliable (although U-BLOX seem to regard it as obsoloete), some Windows driver issues in the past, seem better now, but great on Linux. VK-162 & VK-172 units (VK-162 often called "G-Mouse"). Generally about 5m horizontal drift, but occasionally up to 25m variation.

Harder to find, but you can track them down are Venus 8 chipset GPS units. My testing of these has shown generally 2-3m drift and rarely over 10.

Also pervasive are the SiRF Star units, but I've found all these (so far III & IV) to be slower to fix & more drift than the U-BLOX 7, and more prone to just dying after a year or two.

 

YMMV!!

Brent Wood

On Saturday, March 23, 2024 at 12:57:50 PM GMT+13, Patrick Conroy <pconroy328@gmail.com> wrote:

ublox is plentiful, usually cheap and often good-enough.

there's safety in numbers.

On Fri, Mar 22, 2024, 5:37 PM <tangoing.mill745@aceecat.org> wrote:

On Fri, Mar 22, 2024 at 02:32:38PM +0000, David Taylor wrote:

> If you take that approach, may I suggest using a more modern GPS
> which includes support for more satellites such as Galileo and the
> Russian and Chinese constellations?  There's a Raspberry Pi HAT with
> a u-blox module just requiring an SMA antenna feed:
    ^^^^^^

I see this mentioned in just about every thread here. Is it some kind
of pseudostandard for gps devices now?

It's really cozy here under the rock, sorry.

--
Ian