07/21/2009 | Passport to World Band Radio: In "Limbo"
05/01/2009 | The K7RA Solar Update
The data at the end of last week's bulletin showed daily sunspot numbers from April 16-22 as six zeros, then 11. In fact, every day was at zero until April 21, when it was 11; it moved again to zero the next day, April 22. We had just as many zero sunspot
07/11/2008 | The K7RA Solar Update
Another week and still no sunspots. The 3-month moving average for daily sunspot numbers that we began reporting toward the end of Solar Cycle 23 seemed to retrospectively suggest that solar minimum occurred last fall. The daily average for the 3-month pe