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 17, 20226 min readEvaluating efficiency, transformer and mismatch losses in toroid transformers - some observations.Two methods for transformer loss are evaluated. We learn that mismatch loss must be accounted for.
