>
>> There is another theoretical concept as dirty as it is that when you use
>> longer than 1/4 waves for a 4 square, you may not get as clean a pattern
>due
>> to the higher mutual coupling between them. I thought that 4 1/2 waves in
>a
>> 4 Sq should give a better pattern. My preliminary Eznec tries were not
>> good.
>
>I modeled a 4 square of 1/2 wave verticals on EZNEC and it worked
>fine with one caviat: if you want to feed the verticals
>at the bottom, you must use voltage sources. ...
// I got an SWR=1 to 1 result by matching a >1000-ohm half-wave curtain
array to 50-ohms with an L-network. The delightsome thing about end-fed
halfwaves is that they work well with even a minimal ground due to their
relatively high-Z.
> ...
cheers, Rick
- R. L. Measures, 805.386.3734,AG6K, www.vcnet.com/measures.
end
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