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Date: 2013-02-06 01:39:50Amateur radio Radio propagation Oliver Heaviside Radio Alameda California Hayward California Science and technology in the United Kingdom Physics Geography of California Atmosphere Ionosphere | K6QLF V O LU M E 5 , I S SU E 1 2 D E CEM B E R , President’s MessageAdd to Reading ListSource URL: www.arcaham.orgDownload Document from Source WebsiteFile Size: 226,59 KBShare Document on Facebook |