| Electronics > Projects, Designs, and Technical Stuff |
| Radio Direction Finding |
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| PA3BNX:
Hello Every Body, Still working on my updated GPS112.exe program with modified $GPRMC output through another or the same comport as where the GPS-mouse is connected. It takes more time than I thought. Here is a picture of my Datong Doppler with additional Lowpass filter on the clock for the reference of SoundDoppler.exe (pin 12 of the 4060 chip) This option is nice because I have the hardware 16 led display and a connection to the pc through the SoundCardInput. |
| PA3BNX:
Hello Every Body Here I show you pictures of a datong antenna-switcher-unit with the ne555 power supply print and the 4 dipoles. |
| PA3BNX:
Hello Everybody, I send the antenna switcher circuit in PDF of the datong doppler. It has only one coax to the switcher unit only with the RF, Power and Reference tone. Can some body make improvements ? Today I worked on a new function in the InputXY scoop in my SoundDoppler.exe So it can adjust and line up the green and yellow vertical line op on two adjacent zero crossings from the reference (upper left channel) if you press the middle button of the mouse or mouse wheel. Further I am doing more modified $GPRMC string manipulations out in GPS112.exe So still a lot of work to do... |
| PA3BNX:
Hello Every Body, I show you a picture of my gps112.exe program witch can send out the $GPRMC out modified with gpscompass + doppler heading It has also a seperate Terminal Out screen I did already got test reports from people who have it working with other mapping route programs. If you click on the latitude or longitude labels it switches between decimal degrees(Yellow) and degrees and minutes (white) |
| PA3BNX:
Hello Every Body, I hope the new SoundDoppler119 Gsp112 and MyMapping129 is soon on the site of: http://www.pi4wag.nl/index.php/pseudo-doppler-radio-direction-finder GPS112.exe has Terminal Input and Terminal Output screens with freeze option. And all the options of what to send from com1 to com2 with Modified $GPRMC for other map plotting programs. You can also input gps from gps with mixed Agrelo %bbb/q and then output that through Modified $GPRMC to all kind of mapping programs. Remark Modified $GPRMC means: The GspCompass value is changed in GpsCompass + Doppler heading And a new CRC is calculated in the standard $GPRMC string So if you have a Pico Dopp RDF or a VRZA2011 RDF You get many options. Mymapping129.exe has also this possibility Mymapping has complete GPS decoding routines And can send out Modified $GPRMC from GPS and agrelo mixed. So enjoy |
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