[time-nuts] Slightly OT - GPS-Based Accurate Direction Finding

[Bob Camp]

Hi

GPS is not very helpful for direction. It can be used as an accurate source of time and location to feed a solar or celestial direction estimate.

Bob



On Aug 25, 2010, at 9:04 PM, David Smith <david at smithfamily.net.au> wrote:

> As a fair percentage of the discussion amongst the learned gentlemen on this group involves GPS-based timing systems, I'd like to ask a non-time related, but GPS-related question.
> 
> As part of microwave radio experimentation, often on windy hilltops, I have a need to find direction very accurately.  I have seen advertised GPS-based Azimuth Pointing Systems such as this:
> http://www.ascscientific.com/APS.html
> However they are a little (lot) out of my budget range.
> 
> The system seems to work by taking the raw satellite phase information from two separate GPS systems and crunching the data to come up with an azimuth figure.  Has anyone heard of a (Open Source?) program that could be used to do these calculations?
> 
> Regards,
> David Smith
> 
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