[time-nuts] GPS antenna in snowy environment (was: LEA-6T Software.)

Attila Kinali attila at kinali.ch
Thu Aug 28 09:04:36 EDT 2014

On Mon, 25 Aug 2014 10:48:51 -0400
Dan Kemppainen <dan at irtelemetrics.com> wrote:

> Also, I have a low cost antenna coming. It's one of the Synergy systems
> puck type amplified antennas. I remember some time back a bit of chatter
> about improving GPS antennas for timing, by providing some sort of guard
> ring or choke to prevent low angle reception. Are there any good links
> anyone could provide on what may be worth building or playing with. Keep
> in mind, I live in snow country (~300 inches/year) so a something that
> gathers a lot of snow could be undesirable! :)

How much snow you get is mostly irrelevant. It's more important 
how much accumulates ;-)

A cone hat over your antenna should solve quite a bit of the issue.
The problem is, that you need quite a steep cone or you need to heat
it constantly above 0°C, as snow tends to stick to everything, even
smooth walls.
Maybe also worth a try would be to grease the cone. But i've only heard
of that and never seen it in action. So i cannot tell whether that helps
in any way.

			Attila Kinali

I pity people who can't find laughter or at least some bit of amusement in
the little doings of the day. I believe I could find something ridiculous
even in the saddest moment, if necessary. It has nothing to do with being
superficial. It's a matter of joy in life.
			-- Sophie Scholl

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