If Paul is amenable to it, I'll post his email as a web page
indexed right under the original article. It will be a "One
person's results" type of article (look at the 6m heliax
duplexer article and it's "One implementation of the
above design") for an example of what I have in mind.
And I agree - a few photos would be nice to have.
Mike WA6ILQ
At 02:53 PM 10/30/04, you wrote:
>Hey Paul,
>
> How about posting some pictures somewhere so we can see your creation?
>
> Thanks,
>
> Jeff
> N1KDO
>
>
>At 04:18 PM 10/30/2004, you wrote:
>
> >Recently when I said I was building one of these, some folks
> >wanted my evaluation of it when it was completed. I've
> >misplaced your emails (I hate when that happens!) so will
> >post it here and hope Kevin doesn't mind.
> >
> >I built a "10 element" UHF version. One minor concern: I
> >couldn't change the SWR at all by moving the decoupling
> >sleeve up or down. However, it's OK since the SWR minimum
> >is exactly on my design frequency. Impressive.
> >
> >I was actually shocked to find the SWR did not change
> >appreciably between top mounting, side mounting at 1/2 or
> >1/4 wavelength. I expected it to "complain" about the
> >nearby tower when side mounted. It doesn't even seem to
> >notice.
> >
> >Unfortunately I don't have much to compare its performance
> >to. The previous antenna was a Cushcraft 4-pole dummy load
> >at the same height. The coaxial collinear provides MUCH
> >better coverage (no surprise there <BIG grin>). I have a
> >VHF repeater at the same site (1 dB less power into a 5 dB
> >gain commercial StationMaster). Over flat terrain VHF and
> >UHF coverage is very nearly identical. In rolling hills VHF
> >is generally better, as you might expect. In mountainous
> >terrain VHF sometimes has the edge, other spots the UHF
> >wins hands down. I wish I could offer more meaningful
> >comparisons. I'm quite happy with it and plan to build more
> >of them for other sites and applications.
> >
> >Paul N1BUG
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