VOACAP (Voice of America Coverage Analysis Program) is a radio propagation model that uses empirical data to predict the point-to-point path loss and coverage of a given transceiver if given as inputs: two antennas (configuration and position), solar weather, and time/date. Written in Fortran it was originally designed for Voice of America.
Some movies on the coverage during daytime can be found here.
Simulating HF propagation conditions
Currently versions based on the original source tree exist for Windows, Linux (voacapl) and OSX. The program core uses text files for I/O and a bunch of wrappers now exist. Besides commercial visualization tools, there are also Open Source implementations with GUI, i.e. the pythonProp project.
- Official Homepage: http://www.voacap.com/
- Movies of the HF coverage during daytime http://g.ziegenhain.com/2012/07/22/qrp-propagation-simulation-one-day-on-all-ham-bands/
- Voacap under Linux http://www.qsl.net/hz1jw/voacapl/index.html
- Installing Voacap under OSX http://g.ziegenhain.com/2012/07/installation-of-voacap-under-osx
- pythonProp - Interface for Voacap http://www.qsl.net/hz1jw/pythonprop/
- Installing pythonProp under Debian Linux http://gerolf.ziegenhain.com/2012/07/installation-of-pythonprop-under-debian
- Online Voacap coverage http://www.voacap.com/coverage.html
- Online Voacap prediction http://www.voacap.com/prediction.html