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VOACAP (Voice of America Coverage Analysis Program)〔Official Homepage: http://www.voacap.com/ 〕 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.〔Movies of the HF coverage during daytime http://g.ziegenhain.com/2012/07/22/qrp-propagation-simulation-one-day-on-all-ham-bands/〕 == Simulating HF propagation conditions == Currently versions based on the original source tree exist for Windows, Linux (voacapl)〔Voacap under Linux http://www.qsl.net/hz1jw/voacapl/index.html〕 and OSX.〔Installing Voacap under OSX http://g.ziegenhain.com/2012/07/installation-of-voacap-under-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.〔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〕 For immediate results, there is an online interface for both the coverage〔Online Voacap coverage http://www.voacap.com/coverage.html〕 and the prediction.〔Online Voacap prediction http://www.voacap.com/prediction.html〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「VOACAP」の詳細全文を読む スポンサード リンク
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