Re: Antenna

[Gary E. Miller]

Yo Al!

On Thu, 22 Feb 2024 09:56:07 +1300
Al Grant <bigal.nz@gmail.com> wrote:

> It looks like I will be investing in a new GPS that supports as many
> of Beidou, Glosnas, GPS etc as I can.

Yes, but which bands?  The antennas care about which bandss (L1, L2, L5,
B1, B2, G1, G2, etc.).

> Form factor ideally suitable for Rpi - maybe USB interface with 10Hz
> update rate.

Timing from USB will be marginal, and 10Hz will be jittery.  Very few
"rue" 10Hz receivers.  Most "10Hz" are really 1Hz and interpolate the
:10H" data.

> Antenna to match magnetic mount with active.

The most common type.
 
> Does this provide enough info for a recommendation for both?

Nope.  Need the bands you will use.  The new L5 band works great, but
few antennas claim to support it.  "All band" antennas are rare.

RGDS
GARY
---------------------------------------------------------------------------
Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
        gem@rellim.com  Tel:+1 541 382 8588

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    "If you can't measure it, you can't improve it." - Lord Kelvin

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