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

Scott McGrath scmcgrath at gmail.com
Sun Nov 4 07:25:07 EST 2018


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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