Program Development

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Program Development
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Operating Systems

WSJT, MAP65, and WSPR can be compiled for Windows, Linux, FreeBSD, Macintosh OS/X, and most other UNIX-like operating systems. The download links on pages for each program retrieve pre-compiled installation packages for Microsoft Windows, and in some cases also for Ubuntu and other Debian-based 32-bit Linux distributions. Users of other operating systems or distributions must compile the programs from source code.

Source Code

WSJT, MAP65, MAP65-IQ, and WSPR are open source programs distributed under terms of the GNU General Public License. Source code for SimJT is available on request. KVASD (a soft-decision Reed Solomon decoder for the JT65 mode) is distributed only in executable form because of licensing restrictions.

The graphical user interfaces (GUIs) for WSJT and WSPR are written in Python. Most of the number-crunching in these programs is done in Fortran, and some system-level functions are implemented in C.

Version 2 of MAP65 represents the most recent (April 2012) shift in WSJT-related programming practices. The MAP65 GUI is written in C++ using the open-source Qt framework. As with WSJT and WSPR, most of the number-crunching is done in Fortran.

Anyone interested in the communication problems addressed by WSJT, MAP65, and WSPR is invited to study, adapt, modify, or enhance the code and contribute to further development of the programs. Source code is maintained under the version control program Subversion ("svn") in a public open-source repository at Berlios. For updates and other information on the continuing development of WSJT, MAP65, and WSPR, you are invited to subscribe to the WSJT developers email list.

Explicit Downloading Instructions

Present and past versions of the source code for WSJT, MAP65, MAP65-IQ, and WSPR may be downloaded by using svn commands. For example, the latest revisions of source code for can be "checked out" with the commands

svn co svn://svn.berlios.de/wsjt/trunk
svn co svn://svn.berlios.de/wsjt/branches/map65
svn co svn://svn.berlios.de/wsjt/branches/wspr

You will need to understand svn in order to use the source-code repository effectively.

Compiling

To compile WSJT and WSPR on a unix-like system (Linux, FreeBSD, Macintosh OS X, ...) you may need to install some or all of the following packages:

subversion
python2.x-dev
python-numpy
python-imaging-tk
python-pmw
libportaudio2
libportaudio-dev
libsamplerate0-dev
libfftw3-dev
gfortran or g95

To compile the programs for Windows you can use the MinGW system and g95. You will also need the python packages listed above.

Compiling MAP65 requires Qt rather than Python. Full instructions for building MAP65 and its dependencies will be posted soon.

Acknowledgement

The soft-decision Reed-Solomon decoder used in WSJT and MAP65 is based on an algorithm developed by R. Koetter and A. Vardy and protected under United States Patent number 6,634,007. It uses code licensed from CodeVector Technologies, LLC.