[Xastir] RDF Units?

[Jerry Chamberlin]

Ramsey iis the manufacturer

PIC , be serious, simpler than that no code, just a 1 by 2, 2 antennas (real
deluxe if you have a motor to spin them) and a BFO
and a good set of headsets

when the pitch is lowest your moving away from the source, when the pitch is
highest you are moving toward the source

TO TEST GO STAND BY A TRAIN TRACK, WHITH THE UNIT AND COMPAIR WITH THE TRAION
WHISTLE

On Sat, 26 Mar 2005, Curt Mills wrote:

> 
> I haven't messed with direction-finding for quite some time.  I
> built portable quads and the double-ducky direction finder way back
> when, but always had my eye on the doppler systems ever since I saw
> the first one in QST back in, what, '78 or so?  The DoppleScant.
> 
> More recently I was checking out the Montreal Doppler-II, and I see
> there's a Montreal-I, II, and III now.  I can't even tell which
> one's the current (latest) project.
> 
> Anyone playing with RDF Doppler units and/or keeping up with the
> latest offerings out there?  I'm interested in kit form or
> readily-assembled yet inexpensive products.  I need something that
> puts out a beam heading on a serial port.  This is for a SAR
> project.
> 
> If someone can point me to a theory of operation for decoding the
> audio signal to come up with a bearing, that would be of interest as
> well.  If it's a relatively simple sort of operation (and it must be
> since people are doing it with a PIC), then it might be fun to do
> that myself someday.  Any open-source RDF Doppler projects out there
> I can glean stuff from? 
> 
> -- 
> Curt, WE7U.				archer at eskimo dot com
> http://www.eskimo.com/~archer
>   Lotto:  A tax on people who are bad at math. - unknown
> Windows:  Microsoft's tax on computer illiterates. - WE7U.
> The world DOES revolve around me:  I picked the coordinate system!"
> _______________________________________________
> Xastir mailing list
> Xastir at xastir.org
> https://lists.xastir.org/mailman/listinfo/xastir
> 

The Net Lab year 2000 and beyond Internet Education is Science
http://www.netlab.org
WA0JRJ - Jerry
used to be ICQ 6408731
used to be AIM PappyJerry