Posted by
Bill VanAlstyne W5WVO on
Dec 02, 2006; 11:50pm
URL: http://elecraft.85.s1.nabble.com/OT-Wullenweber-Array-tp441455p441458.html
Fred Jensen wrote:
> How does one obtain a complete set of coordinates for the origin of a
> received signal using only one passive receiving site (i.e. no
> transponder for time delay measurement)? I understand bearing
> (azimuth) from the rx site ... how does one obtain distance?
I would suppose you would have to plot the azimuth from two different array
sites (separated by hundreds or, preferably, thousands of miles) and
triangulate. Can't think of any way to do it from a single point on the
earth. You could approximate it by having some knowledge of how long the HF
skip distance appears to be over the path in question at the time the signal
is heard, but that sure wouldn't pinpoint it for you. Might put you in the
right (large-ish) country...
Bill W5WVO
>
> I did think PA0SIM's phase coherent K2's was kind of cool. I don't
> know if the phase shifts are exactly the same across separate K2's,
> but I guess whatever difference there was would be constant and could
> be factored out?
>
> Inquiring minds want to know.
>
> 73,
>
> Fred K6DGW
> Auburn CA CM98lw
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