In this Live Stream we will look at:
° Various EFHW transformer variants i built in the last three years
° How to use SimNEC and a NanoVNA to compare different variants
° New torroids to try out for better efficiency (Fair-Rite 2643625002 and 2643251001)
° Websites from other OMs about EFHW Antennas / Transformers to check out
Edit: I just realized I consequently used the wrong unit when talking about the compensation capacitors. Even in the names of my saved SWR curves 🤦♂️. Of course the unit is Picofarad not Nanofarad! So 100pF is the “standard“ value. Sorry for that! I’ll go and rename about 100 files now. 😣
Intro Music:
Peter W - Spy vs Spy (Instrumental Version)
Links:
K1RF
PD7MAA
Owen Duffy
ht
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