VOACAP is considered by many to be the defacto standard HF propagation prediction tool.  Although originally developed on UN*X, the official release of VOACAP is now maintained on Windows (using the Salford Fortran compiler). This project represents an effort to compile VOACAP using the GCC GFortran compiler and create a set of OSS support utilities.

Visitors to this site may also be interested in the online resources at voacap.com (which uses the voacapl engine to produce predictions) and proppy which adopts the ITU's P.533 prediction method.

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