Electronics > Projects, Designs, and Technical Stuff
Radio Direction Finding
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PA3BNX:
Hello Every Body,

I post here a picture of the
classic 4 monopole or 4 dipole FM rx mode antenna array

and the Plate Antenna (4 directions) AM rx mode.

Both antenna types can work on the Arduino Shield

for my SuperSimpleArduinoDoppler direction finder


Mark-02660:
Nice Work!   8)

I have always wanted to do this.  I was going to make the interface with HTML5 and do all the processing on a micro controller since I dont do windows programing!   

Have you got it all working yet?

And videos of it in action?

Melt-O-Tronic:
Thanks for your persistence on this topic, PA3BNX.   :-+

I've been following this forever and am learning a lot.  I've read a ton of info and visited dozens of web sites, but I think this thread has been one of the most useful resources in my own experimentation.  Your diligence is very much appreciated.  RDF is a very intriguing aspect of amateur radio to me.
PA3BNX:
Hello Every Body,

I am working on an elevation display next to the arduino terminal and pelorus display
for the SuperSimpleArduinoDoppler
running in MyMapping1.57

I did extended the agrelo protocol %123  with
two brackets and in between the dopplertone amplitude like [12]

So this has no influence on other agrelo fields.

Ofcourse the arduino uno doppler software must be extended with the []

See the picture


The doppler tone amplitude depends on the elevation
So low above ground much doppler amplitude
en high just above you no doppler tone amplitude anymore.

This works ofcourse not with  AM with the plate antenna.

Bug found
CW/CCW doesn't work yet with the plate AM antenna.

I try to fix that to in the next software arduino.ino release.

New version software is not yet released.


PA3BNX:
Hello Every Body,

Yes I got it all working

Stil there is always things to improve.

I was also thinking of writing a simple PelorusDisplay program  in Python
that reads the data through USB arduino.

I have not yet done that...

It would be nice if we could connect the arduino doppler on a tablet or smart phone hi..

So anybody who want or can write it...

The Arduino Uno is very nice with a USB and then display on a smart phone through blue tooth ?



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