Mirek, OK1DUB has been mentioned on Spaceweather.com on June 3, 2007 (check out the archive on the right side if you visit spaceweather.com after June 3, 2007).

Mirek plotted the radio wave fadeout in Europe which took place on June 1, 2007 due to a huge M3 flare caused by sunspot 960. He monitored the beacon OK0EU on 3594.5 Khz using an Icom 706 with a 50m longwire.

Plot of OK0EU 80m beacon during fadeout on June 1, 2007 

Sunspot 960 is huge: It’s diameter is about 140,000 km and it could be easily seen with a backyard telescope. But be careful when looking at the sun. Make sure you have a special solar telescope with the correct filters. Otherwise you will damage your eyes.

Sunspot 960 with earth in the background (for size comparison) 

All images (c) spaceweather.com

[tags]ham radio, amateur radio, spaceweather, astronomy, blackout[/tags]

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