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03/05/2011 | The K7RA Solar Update
Solar activity is rising again, but the average sunspot numbers and solar flux are down, compared with last week. This week, the average daily sunspot number declined more than 14 points to 50.9, and the average daily solar flux was off 7 points to 96.8.
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01/28/2011 | ARISSat-1 Blasts Off
The new AMSAT ARISSat-1 satellite is on its way to the International Space Station
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01/21/2011 | The K7RA Solar Update
The average daily sunspot numbers dropped from 50 (on the reporting week ending January 5) to 38 on January 6-12, and now 21.3 on January 13-19. Sunspot numbers for January 13-19 were 14, 11, 11, 15, 36, 34 and 28, with a mean of 21.3. The 10.7 cm flux wa
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11/12/2010 | The K7RA Solar Update
Both the average daily sunspot numbers and solar flux increased over the past week, with sunspot numbers up 7.4 points to 33.1, and solar flux up 2.1 points to 84.2. Four new sunspot groups have appeared since November 4. For some reason, NOAA is currentl
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07/24/2010 | ARDF Update: Radio Foxhunters Find Their Champions in OhioNo shack potatoes here! These radio-orienteering enthusiasts took to the beautiful woods of the Buckeye State in pursuit of transmitters and medals.
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07/07/2010 | Amateur Radio Quiz: The Band Is Hot!Summer time brings out the 6 meter “Magic Band” aficionados as action via sporadic-E (Es) propagation heats up. The annual Perseids meteor shower brings additional excitement during mid-August as the Earth sweeps through the debris of the comet Swift-Tutt
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06/04/2010 | Think Metric -- Moving to Metric for the HamThis article gives the reader an introduction to the metric system with a focus on ham radio applications.
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05/14/2010 | The K7RA Solar Update
This lack of sunspots is bothersome. Thursday -- May 13 -- is the fifth day in a row with no spots, and there is no sign of any change. The solar flux has been declining and is now below 70. The predicted solar flux for May 14-19 is 70, then 74 on May 20,
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