Re: Tape measure style Yagi using PVC and Ladder line.

Siegfried Jackstien

i would not use a haipin match but a halfwave transformer

impedance of a folded dipole with parasitic elements is in the 200 ohms
area .. so a halfwave transformer is the right choice

the text in the homepage where you found the design has a fault ... a
folded dipole does not have 450 ohm ... also not when using the 450 ohms
window line (that in real is more 390 ohms or so) ...

hairpin match does not provide balancing and is lossy compared to the
halfwave line

greetz sigi dg9bfc

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