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

Attila Kinali attila at kinali.ch
Thu Aug 28 14:15:43 EDT 2014


On Thu, 28 Aug 2014 12:00:19 -0400
Dan Kemppainen <dan at irtelemetrics.com> wrote:

> However, that raises a good questions, in terms of cones and shedding
> snow. I wonder how a straight slender vertical pipe with capped end
> would work. Say 6 feet long. Let the snow build on the top. You might
> loose a few degrees of sky view above it, but how detrimental would that
> be?

Unless you live directly under the path of one of the orbits, satellites
will not pass directly above you, so there would be little los.

But the pipe is not such a good idea. All signals from high elevation
angle will have a long path trough the pipe, changing their phase
ever so slightly. How much, depends on the pipe, it's thiknes and material.
Whether it actually matters or not, depends on your requirements.

			Attila Kinali

-- 
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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.
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