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SUPER J-POLE BEATS YAGI BY 1 dB
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February 7th 05, 01:48 AM
[email protected]
Posts: n/a
On 6 Feb 2005 05:42:42 -0800,
wrote:
Here is the theoretical H-plane plot of our Yagi:
http://www.drslick.org/Temp1/yagiplot.jpg
And a photo:
http://www.drslick.org/Temp1/yagi929.jpg
After looking at the picture and the plot I fired up yo
and the only way I could get that low a gain was to
seriously mess up the antenna. The end effect was
a 2 element yagi witha spurious useless element.
This is further confirmed by the picture. It appears
the rightmost element is the fed element (very strange for a three
element design) and the proportions suggest a reflector close to the
driven and longer. The third element (the leftmost) would be spurious
as it's behind the reflector and far away.
Please explain that yagi, it's strange.
Allison
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