HF Propagation and Solar-Terrestrial Data Website
hamqsl.com
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HF Propagation and Solar-Terrestrial Data Website
https://hamqsl.comFree 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, online SN to SFI/SFI to SN conversion tool, online Aurora/Auroral activity to latitude conversion tool, and online K-Index to Signal Noise conversion tool.