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VHF / UHF Tropospheric Ducting Forecast
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DX Info CentreBy: William Hepburn
Solar Terrestrial Activity Report
http://www.solen.info/solar/
N3KL Solar Activity Monitor
Solar X-rays:
Geomagnetic Field:
http://www.n3kl.org/sun/noaa.html
Solar-Terrestrial Data
http://www.hamqsl.com/solar.html
MUF Map
http://www.spacew.com
Clima Mundial
http://wattsupwiththat.com
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