Dan Koellen AI6XGFeb 28, 20235 min readAll Wound Up About EFHW Transformer WindingAfter successfully using an End Fed Half Wave (EFHW) antenna for SOTA, I decided to build a 10 to 80 meter EFHW antenna for my home...
Dan Koellen AI6XGJun 16, 202113 min readDon't Fear the Smith ChartLike many radio amateurs I was initially intimidated by the Smith chart. Transmission line and antenna theory, unfamiliar terms and...
