directTDoA is a probably not so well known GUI written in Python that runs the TDoA algorithm locally on your computer. It has been gone thorough a lot of development since 2018 after Christoph first published his main TDoA code.

The creator Llinkz recently published a new version V5 (see that has some unique features such as waterfall / SNR measurement, an ultimateTDoA mode which can use all available nodes in an user defined map area and can work with shorter than 30 second recordings for processing.

The latter is quite effective for short time signals such as 2G ALE and the last versions of the program interfaces via TCP with the Sorcerer decoder and can automatically start the TDoA process upon detection of an ALE signal. Very cool..

best regards, Ben


  • got it running here... will have to use it some..
  • A new version has just been published. > directTDoA v6.00

    Not much changes for linux and macOS users (just adding back a Listen/Demod service, like in the directKiwi project and some bug corrections)
    (to get Listen/Demod working w/o re-installing everything, get the from the repository and read the changelog for instructions)

    But the main point is that Windows version is now fully functionnal and is delivered as .zip package.

    So, people who wish to use the application on Windows OS will not have to worry about installing full GNU Octave, git and of course python with its modules. All files are already patched and compiled in the available archive. Just unzip & play !

    Thanks to @daniel for this work.

  • I made some mistakes in the previously released code for Windows.
    Download the archive again

  • I've just released v7.00


  • Just downloaded the Windows version, only it looks like it is for Linux. The README file is full of Linux-type code. Is there a .exe file to run this under Windows? I can't find it.

    Ken VE3HLS

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