MMDVM DMR calibration

F5UII wrote an excellent article on how to calibrate a MMDVM repeater. Both with a spectrum analyzer or with a simple (RTL) SDR USB stick as an alternative to a spectrum analyzer.  Great stuff, please have a look;

Install MMDVMHost on Raspberry Pi and tuning MMDVM for DMR digital mode

Thanks and 73s

Daniel de DL6FZ

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BITX40v3 is alive!

It took me about an hour to build the BITX40, this is a really fun little project. After the first installation I updated the Raduino from Version 1.01 to version 1.10

https://github.com/amunters/bitx40

This adds tons of new features, all the features can be found here;

https://github.com/amunters/bitx40/blob/master/README.md

I am still running the standard hardware, I will add the following hardware extension soon;

  • Function button
  • CW Carrier
  • PTT Sense
  • TX RX Line wiring
  • Sidetone wiring

This is a cool project, I like all the experimenting and extending that is possible.

Thanks and 73,
Daniel de DL6FZ

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WSPRLITE LP-Filter ready – 40 meters here I come!

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First WSPR Results

Yeah!  My WSPRLITE has been running for about a day now; 8338 KM ist the longest distance I have been heard. Thank you RU0LL!

Please check out my WSPR Results here:

No links found
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