[time-nuts] current crop of GPS receivers for Rpi/Beaglebone for NTP server/etc
David fav
whisky74656 at gmail.com
Mon Oct 16 15:12:30 EDT 2017
I used
https://store.uputronics.com/index.php?route=product/product&path=60_64&product_id=81
and I'm happy with it. Good instructions.
On Mon, Oct 16, 2017 at 2:46 PM, Hal Murray <hmurray at megapathdsl.net> wrote:
> I don't know of any no-wire setups for the Beaglebone. (I somewhat
> remember
> one, but it included something else I didn't need and the price was high
> enough that I ignored it.)
>
> If anybody finds one, please let us know.
>
>
> There are at least 3 GPS HATs for Pis.
>
> The first two include a patch antenna. Depending on your location, you may
> be able to run without an external antenna. The Adafruit has a tiny u.FL
> connector rather than a SMA so it fits into a normal enclosure with no
> modifications.
>
> Adafruit:
> https://learn.adafruit.com/adafruit-ultimate-gps-hat-for-raspberry-pi
> You need to solder on the 40 pin header.
>
> SKU 424254:
> http://www.dx.com/p/add-on-gps-module-gps-hat-module-for-
> raspberry-pi-2-mod
> el-b-b-424254
> (I haven't tried one.)
>
>
> Uptronics:
> https://store.uputronics.com/index.php?route=product/
> product&path=60_64&prod
> uct_id=81
>
> See Davit Taylor's msg for the US source.
>
> The old(er) Uptronics board had the antenna connector going out the end
> rather than the side. That doesn't fit with new Pis that have 4 USB slots.
> On older Pis, it puts the cable in the slot between 2 connectors. You can
> use old enclosures by just breaking off one tab.
>
> ---------
>
> Lots of info here:
> https://www.ntpsec.org/white-papers/stratum-1-microserver-howto/
> You may have to dig to find the stuff you are interested in.
>
>
> --
> These are my opinions. I hate spam.
>
>
>
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