[SFDXA] Solar Activity and HF Propagation - Delivered at the Dayton Hamfest 2005
Bill
bmarx at bellsouth.net
Mon Apr 21 13:30:34 EDT 2014
http://www.aoc.nrao.edu/~pharden/hobby/FDIM81.pdf
<http://www.aoc.nrao.edu/%7Epharden/hobby/FDIM81.pdf>
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