[time-nuts] Need recommendation for GPS antenna for Oncore GPS module

Toby Riddell toby.riddell at prevtec.com
Sun Nov 4 11:43:57 EST 2018


Thanks Scott - I will look into getting one of those. And noted re. the
roofline!

On Sun, 4 Nov 2018 at 07:26, Scott McGrath <scmcgrath at gmail.com> wrote:

> For timing use ideally it should be above the roofline by at least several
> feet otherwise satellites close to the horizon will be not be visible.
>
> The generally preferred antenna is the Agilent/Keysight/Symmetricom.
> 58504A antenna also any outdoor antenna made by Trimble or TrueTime as long
> as antenna does not use a downconverter.
>
>
>
> On Nov 3, 2018, at 5:26 PM, Toby Riddell <toby.riddell at prevtec.com> wrote:
>
> Hi all,
>
> I want to fit a GPS antenna on our house (the attic is being renovated and
> it just occurred to me that if I move fast I can get it done before the
> walls are closed up again!)
>
> I was planning on having it mounted on a south-facing wall but below the
> roofline - does this sound okay for picking up satellites? It can poke
> above the roofline if needed as long as the mounts are on the wall (not the
> top of the roof).
>
> Is there a recommended antenna? I am planning on feeding it into an Oncore
> GPS module which will then interface to a Soekris net4501 running nanoBSD
> and ntpns.
>
> Thanks!
>
> Toby
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