Posted in DXZone - Ham Radio 3900 Club iz4wnp 30 Gennaio 2022 0 Likes 69 Views The 3900 Club began in the 1960’s as a Sunday morning net of a dozen ham radio operators in, and around, the Sioux City, Iowa, area. The club was formally organized in September, 1969. Author: iz4wnp Related Articles 0 63 Top Amateur Radio Websites – Issue 2425 0 69 PA1CW 0 71 V.I.P. Radioamateurs 0 66 070 club PSK31 Awards