That radiation pattern may look weird for an antenna but it looks
amazingly like a Roadrunner in flight. It's the state bird of New
Mexico but we often see them here in Arizona as well, and since they
usually don't fly very high I even typically see them from above as your
screenshot shows.
73,
Dave AB7E
On 2/17/2011 4:57 PM, Dan Zimmerman N3OX wrote:
>> Thinking about a loop of 26400 feet.
>
>
> !!!!!!!!!!
>
> The pattern is remarkably weird. I tried a square loop at 50 feet above
> "average" ground on 160m and 80m, fed in the middle of one side.
>
> http://n3ox.net/files/hugeloop.jpg
>
> It's basically a rhombic with a bad pattern. Much of the current is
> traveling wave current, but there's enough standing wave current and array
> action between the two sides adjacent to the fed side to make big ripples in
> the pattern.
>
> The current in three of the four sides is almost purely traveling wave, like
> in a rhombic or Beverage.
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