Radio Blackout on April 27 2006
Yesterday @ 1547z a strong M8 flare send out by sunspot 875 has caused a shortwave blackout (Mögel Delliger Effekt or Sudden ionospheric disturbance) for more than 10 minutes.

Image credit: Spaceweather.com and Thomas Ashcraft
[tags]ham radio, amateur radio, dx, solar flare, sun[/tags]

