Free solar-terrestrial data displayed on your web page or site, updated every 3-hours. Also contains solar and radio propagation information applicable to ham radio including solar conditions, space conditions, online propagation tool, onli...
High frequecy and VHF radio propagation data, solar and geomagnetic real-time and historic data, sunspot activity reports, as well as forecasts. A comprehensive propagation resource compiled by Tomas Hood, editor of the propagation columns...
High frequecy and VHF radio propagation data, solar and geomagnetic real-time and historic data, as well as forecasts. A comprehensive propagation resource compiled by Tomas Hood, editor of the propagation columns of CQ, CQ VHF, Popular Co...
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