Frankly, I feel this isn't the forum for you to sell your wares in.
73
On Saturday, January 22, 2022, 03:00:54 p.m. GMT-5, 44net-request@mailman.ampr.org wrote:
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Today's Topics:
1. Internet linked RDF networks (Robert Simmons)
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Message: 1 Date: Fri, 21 Jan 2022 13:10:39 -0800 From: "Robert Simmons" pelican2@silcom.com To: 44net@mailman.ampr.org Subject: [44net] Internet linked RDF networks Message-ID: 000401d80f0b$57a7eef0$06f7ccd0$@silcom.com Content-Type: text/plain; charset="us-ascii"
All...
I am new to this forum... this topic might not be relevant, but here goes...
Does anyone here have any interest in remote reporting radio direction finders ? ( RDFs )
I have developed technology for that, using Doppler direction finders.. suitable mostly for VHF and above.
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Explaining it takes some time, but I have posted a YouTube video of a single DF station, running in TEST mode, located at my residence in California.
( video is about 1 minute long )
https://www.youtube.com/watch?v=GdJqKNpWG5c
The DF displays on any PC's GoogleEarth screen, if a suitable PLACEMARK is installed for it.
( not sure about smart phone versions... )
It "refreshes" once every 3 seconds, and ( in TEST mode ) the DF bearing line ( 25 miles long ) rotates clockwise at 1 RPM.
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This is a YouTube recording, but the real DF station ( still running in TEST mode ) can be viewed "in realtime" if I provide a KML link for it.
Contact me if you want to see that... I will provide more info "off forum" about how to install and use the link in GoogleEarth.
Bob Simmons / WB6EYV / pelican2@silcom.com
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Multiple DF stations can be plotted simultaneously, on multiple displays... yielding a plot showing the approximate location of the "hunted" station... literally, "in seconds".
If multiple hunters ( at many different locations ) are watching the same plot, those "far away" can ignore it... but those "nearby" can jump on it and maybe find the hunted station.
That's the general idea... a jammer can't even "cough" without revealing their ( general ) location.
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I'll provide more details for those who enquire, I prefer a phone call, ( include your number, if you please ) because e-mails are slow to compose.
This is still in an "experimental" phase, but the basic technology is all mature and solid...
All the pieces have been individually tested, time for a complete network to be built.... and I can't do that alone.
More about me here :
www.picodopp.com
TNX DE WB6EYV
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Terry Bendell