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All Wound Up About EFHW Transformer Winding
After 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 AI6XG
Feb 28, 20235 min read
3,370 views
2 comments


Don't Fear the Smith Chart
Like many radio amateurs I was initially intimidated by the Smith chart. Transmission line and antenna theory, unfamiliar terms and...

Dan Koellen AI6XG
Jun 16, 202113 min read
2,373 views
5 comments
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