Shortened 40m Rotary Dipole Antenna, Aging Trends in Ham Radio Contesting: A Demographic Review, DIY 4:1 Current Balun with FT240-31, HB9CV On-Line Antenna Calculator , Electronic Component Distribution, The PAPA System, Charly Tango International DX-Group - Blog, Northland Antique Radio Club
SZ1A's ongoing improvements are bolstered by donations, sponsorships, and volunteer work. Contributing to this ... - Listed in Technical Reference/Lightning Protection