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

Bruce Rahn brahn at woh.rr.com
Thu Aug 26 03:58:46 UTC 2010

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


Please see U.S. Patent # 5,777,578 "GPS Compass".   I can send you a 
copy if you cannot find it.

Bruce, WB9ANQ

Bruce Rahn

Wisdom has two parts:
1.  having a lot to say; and
2.  not saying it!

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