Electronics > Projects, Designs, and Technical Stuff

Radio Direction Finding

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PA3BNX:
Hello Every Body,

I just saw that wb6eyv has a external SCF Hardware Audio filter

Available on his pico dopp sites .

That connects in series with the audio and the picodopp input
controlled by the antenna switch signals.

It Looks nice.

PreDopp Audio PreSelector : US$ 109
http://www.silcom.com/~pelican2/PicoDopp/XDOPP.htm#FDDF

My Software has a DSP SCF filter but his hardware is nice too.
 

PA3BNX:
Hello Every Body,


I did put SoundDoppler120 and Mymapping on the PI4WAG web site.

SoundDoppler120cAll.zip

KML logging for Google-Earth works and also the
AutoMapTracking in MyMapping for about 150 maps in a directory.


I can still make improvements on the software but it does work.

PA3BNX:
Hello Every Body


MyMapping 131 is on the PI4WAG site now
SoundDoppler120dAll.zip


MyMapping has now scroll through the maps with
mouse wheel and pgUp and pgDown keys with the last
bearing always on it.
Wen AutoMapTrack is switched off.


Further I am  trying to create new SuperSimpleDopplerPeiler design in DipTrace

For me the first time ever to try to create a diagram and PCB in a specialised Diagram / PCB program.

http://www.pi4wag.nl/index.php/pseudo-doppler-radio-direction-finder


PA3BNX:
Hello Every Body,

I had the flue so
I didn't work a lot on the software.

But today I started again some programming.

In program SoundDoppler.exe
I made the turnprompt grey orange and red
depending on the level of the Rx sound.
So more then 90% is orange and 100% is red now.

In program MyMapping.exe I wanted to have the Map.inf editor for the
UI-VIEW32 maps in two input modes.

GPSDegrees and DecimalDegrees (Like Google-Earth uses).

So it's possible now to do that.

The Map.inf files keep ofcource the same format in GPS degrees.
(GpsDegrees is the same as NMEA0183 has for latitude and longitude)


0000.00N, 00000.00E
0000.00N, 00000.00E
Netherlands

So Upper-left-corner and Lower-right-corner
coordinates and a name description
Coordinates are always in GPSDegrees
That is Degrees Minutes.Decimalseconds

So every Map in BMP, JPG, GIF or PNG format
must have a same name.inf file in the same directory.

Extra menu for displaying a legend on the map
as km by km.

I also made kml logging possible in MyMapping (kml files are for Google-Earth)
only if you have a VRZA2011 or Picodopp + GPS connected to
MyMapping.exe



I will soon put the updated files on the site of PI4WAG.


PA3BNX:
Hello Every Body,

I have a new updated version SoundDoppler120fAll.zip on
the Pi4WAG site now.

Some things again improved hi...

Like the KML logging and plotting route lines on MyMapping.

Further some improvement on Gps113.exe


So have fun trying radio foxhunting,

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