Sit back and enjoy this half-hour 4k video of our star, the Sun, in ultra-high definition 4k resolution in which NASA SDO gives us a stunning look...
This cool video ( in ultra-high definition 3840x2160 - 4k on YouTube ) shows the Sun during the entire year, 2015. The video captures the Sun in...
I recently re-hung my G5RV up about 5' higher and the past couple days on 20m have been quite poor from my QTH in MN. Did I kink something in my...
