Uploads by KI7LBE
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This special page shows all uploaded files.
| Date | Name | Thumbnail | Size | Description | Versions |
|---|---|---|---|---|---|
| 07:26, 23 May 2017 | Sunspot Numbers.png (file) |  |
78 KB | This figure summarizes sunspot number observations. Since c. 1749, continuous monthly averages of sunspot activity have been available and are shown here as reported by the Solar Influences Data Analysis Center, World Data Center for the Sunspot Index,... | 1 |
| 07:42, 1 May 2017 | Band-Allocation-Chart.png (file) |  |
171 KB | ARRL band allocation chart as of 2012. | 1 |
