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An obsolete AFSK1200 decoder that uses the soundcard as input device. https://sourceforge.net/projects/qtmm/
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1. About qtmm AFSK decoder Qtmm is a very simple AFSK1200 decoder that uses the soundcard as input device. Connect your computer to the audio output of your FM receiver, select the audio device from the list and start decoding packet radio transmissions such as APRS traffic or telemetry from various cubesats. Qtmm uses the multimon AFSK1200 engine by Thomas Sailer and the Qt toolkit, hence the project name qtmm. Qtmm is available for Linux, Mac OS X and Windows. 2. Install You can install qtmm by compiling the source code yourself or by using one of the pre-compiled binary packages available for download. 2.1 Compiling the source You need Qt 5.5 or later. Qt 5.6 or later is strongly recommended. On Linux you can use the Qt SDK that comes with your distribution. Qtmm needs the qtcore, qtgui, qtwidgets, qtmultimedia and qtmultimedia-plugins components. On Mac and Windows, and actually also on Linux, You candownload the latest Qt SDK from http://qt.io/ Get the source code from https://github.com/csete/qtmm Open the qtmm.pro file with Qt Creator and compile. 2.2 Pre-compiled binaries I have made some binary packages available that may or may not work. See the project downloads. The Windows and Mac binaries contain everything needed and do not require separate installation of Qt. The Linux packages require the Qt runtime libraries to be installed (TBC). 3. Future plans Qtmm was conceived as a small experiment to test integration of multimon source code into Qt application before doing it in gqrx. I do not plan to do any active development of the application besides some occasional maiontenance. You are of course welcome and encouraged to modify the program to suit your needs and wishes within the terms and conditions of the GNU General Public License version 2.