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This was another week where average daily sunspot numbers declined, while average daily solar flux increased. Sunspot numbers for January 19-25 were 117, 88, 102, 103, 108, 105 and 68, with a mean of 98.7. The 10.7 cm flux was 157, 141.2, 141.6, 141, 144.3, 135.7 and 126.4, with a mean of 141. The estimated planetary A indices were 3, 4, 6, 21, 9, 17 and 14, with a mean of 10.6. The estimated m...
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By Stan Horzepa, WA1LOU
Contributing Editor This week, Surfin’ recalls those mechanical digital clocks that once proliferated ham shacks everywhere. Jim Cain, K1TN, wrote: “Every active ham I knew in the 1960s and 1970s had a 24-hour Numechron Tymeter ‘digital’ clock, the one in a brown plastic case with rotating drums. I was watching The Black Cat (1934, Bela Lugosi and Boris Karloff) and in one...
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2011 Field Day Photos
