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From: | Don Rolph |
Subject: | Re: -GPSD 3.22 autobauding under bullsEye |
Date: | Sat, 18 Dec 2021 15:46:15 -0500 |
Yo Don!
On Sat, 18 Dec 2021 13:49:28 -0500
Don Rolph <don.rolph@gmail.com> wrote:
> OK I obtained one of these for a but less money than o eBay from
> Amazon.
Cool.
> - it achieves a fix significantly faster than the Adafruit Ultimate
> USB GPS
Yup.
> - it fits in the same form factor but will require modification of the
> mounting approach, which is no big deal since this had not been
> finalized
Most applications just hang it on the USB conenctor.
> - it will not lock unless the aluminum foil shielding is in place:
> without this it never achieves a fix
It should be fine, outdoors. Here is a good paper on antennas:
https://www.u-blox.com/sites/default/files/products/documents/GNSS-Antennas_AppNote_%28UBX-15030289%29.pdf
The optimum ground plane is about 50mm square. More than that and you
depolarize the antenna. Gain increases up to about 75mm.
I find that an old 3.5" disk platter works well. 95mm diameter.
RGDS
GARY
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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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