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Old July 27th 07, 05:41 AM posted to rec.radio.amateur.antenna
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Default matching masts as vertical antennas.

On Jul 26, 5:14 pm, Owen Duffy wrote:
wrote roups.com:



A 3/8 wave radiator is easily matched with a single variable cap..


Details?



Place cap at the feedpoint in series . Viola...
This is fairly common really.. IE: feeding "extended"
Inv L's where the length is appx 3/8 wave.
The usual reason for that is to raise the maximum current
point up off the ground a bit to lower ground losses..
BTW, once you find the best match, and find the cap value
needed, you could replace the variable with a fixed cap.
MK



 
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