Ian White, G3SEK writes:
>
>Tyler Stewart wrote:
>>Bill Fisher - W4AN wrote:
>
>We can certainly talk 144 or 432, where contesters use 8-high stacks to
>increase the gain without narrowing the beamwidth. For the simplest
>system, feeding all antennas through equal line lengths, the maximum
>length is no more than it would take to reach the top antenna. The main
>distribution point is half-way up the stack, so 6 out of the 8 feedlines
>have to be coiled up to "lose" some length.
You don't have to use equal lengths of feedlines - they can
be diffrent lengths - as long as they are diffrent by multiples
of one wavelength.
BTW you can get a slightly better pattern if the middle antennas
have more power going to them then the outer ones.
--
George Fremin III
Austin, Texas C.K.U. "It is hard to be in one place at the same time."
K5TR -- Overheard at the TR-Log booth
512/416-7010 at the Dayton Hamvention
geoiii@bga.com
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