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Old February 13th 07, 02:24 AM posted to rec.radio.amateur.antenna
Tom Ring Tom Ring is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 230
Default Queston on Yagi Antennae

AndyS wrote:
Andy writes;

I know I could go to my EZNEC and find this out for myself,
but I figure someone here has already done this and a quick
answer is all I need..

In "normal" Yagi antennae, the elements are parallel
and at 90 degrees to the mounting boom.

In some TV antennae, the elements are at an angle to the
mounting boom, slanted in the direction of the station being
received. Otherwise, they look pretty much like a Yagi.

My question is, what effect does "slanting" the elements
forward have on the impedance, and the pattern ?

[ [ [ [ [ [

Normal Yagi Slanted Yagi


Thanks in advance for the meaningful answers..

Andy W4OAH


Normally elements like that would not be used, but if you want to make a
yagi that runs at 1f and 3f, "slanting" the elements allows it to have a
reasonable pattern on triple the normal frequency while not mucking up
how it runs at the 1f too badly. 144 and 432 work fairly well.

If you turn the trick right, the metal in question will work on 6, 2 and 70.

tom
K0TAR


tom
K0TAR