Hier: http://www.g4ilo.com/voaprop.html
VOAPropVOAProp was written to meet my need for a program that would show me what HF band propagation should be like on a particular day on a particular band. It is the successor to my popular propagation program HFProp, which used fast, but not very accurate propagation modelling algorithms. VOAProp uses the well-regarded VOACAP forecasting software, and provides a simplified graphical interface for it so that you can get an overall idea of how propagation should be at a given time and date without getting bogged down in detail.
Daar vind je goede software om te bepalen welk pad/frequentie je kan gebruiken om een verbinding te maken met een door jouw te bepalen locatie, voorspelling over de propagatie etc.
73,
Cor
