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07/29/2016 | The K7RA Solar Update
More spotless days ahead
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08/07/2015 | Perseid Meteor Shower Operation Set from Rare Grid to Mark “Canada’s Roswell”
As Earth this month enters the debris stream from Comet Swift-Tuttle — the source of the annual Perseid meteor shower — Amateur Radio “meteor scatter” (MS) propagation enthusiasts will aim antennas skyward to bounce signals off the ionized meteor trails.
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08/07/2015 | The K7RA Solar Update
Solar activity increased somewhat this week, but sunspot numbers remain low.
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08/10/2013 | Perseid Shower Poses Meteor Scatter Possibilities
The perseid meteor shower opens opportunities for meteor-scatter work on VHF and UHF.
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08/17/2012 | Surfin’: Dust Particles Reflecting RF in the AtmosphereThis week’s installment of Surfin’ examines the radio propagation mode known as “dust scatter.”
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08/10/2012 | Surfin’: Falling Meteors and AcornsThe sky is falling, but that could be a good thing or a bad thing, according to this week’s installment of Surfin’.
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Feature
08/07/2012 | Perseid Meteor Shower Should Be Fun for Meteor Scatter Enthusiasts and Viewers AlikeOn the night of Saturday, August 11 and well into the next day, Earth will be at the peak of its annual passage through the bulk of the debris shed by a comet known as Swift-Tuttle.
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08/12/2011 | The K7RA Solar Update
The average daily sunspot numbers declined more than 24 points to 75.1 this week, while the average daily solar flux was down more than 12 points to 104.3. We saw solar flares recently, with a substantial geomagnetic upset on Friday and Saturday -- August
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