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Old 05-24-2004   #9 (permalink)
Thorn
Did you do the math?
 
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Join Date: Apr 2002
Location: Villa Straylight
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Quote:
Originally Posted by Apollyon
I'm no ham junkie, but check here, too.
http://www.saunalahti.fi/elepal/antenna2.html

Maybe it's because "X" is larger than 1/4 wave.

Apollyon
I forget why, but 2.48 works out about right for W. If I recall, it has to do with the standing waves. (But that may not be right; its' been a while since I looked at any of the math for this stuff.)

V can be zero, since this is a yagi, and not a waveguide.

Z should be 1/4 wave seperating the first element (washer) from the driven element.
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