Larry Banks wrote:
> Hi Jim,
>
> Good idea.
>
> One of the reasons I went with 45° is that I did not want the vertical mast
> to ruin the antenna pattern, which happens when the mast goes though the
> yagi, or even if the yagi is at the end of the mast. How did you prevent
> this problem?
>
I took the easy way out: I attached a cross boom to the mast and mounted
a vertically polarized Yagi at each end.
This works well with even 3 or 4L yagis and is a relatively inexpensive
solution. I prefer a 2-way power divider, but a coax matching harness
is relatively easy to build.
73
Roger (K8RI)
> 73,
> Larry
> W1DYJ
>
>
> ----- Original Message -----
> From: "Jim Hargrave" <w5ifp@gvtc.com>
> To: "Towertalk" <towertalk@contesting.com>
> Sent: Thursday, April 09, 2009 3:18 PM
> Subject: Re: [TowerTalk] Gizmotchy's
>
>
>
>
> >-----Original Message-----
> >From: towertalk-bounces@contesting.com
> >[mailto:towertalk-bounces@contesting.com]On Behalf Of Larry Banks
> >Sent: Thursday, April 09, 2009 16:19
> >To: Dan Zimmerman N3OX; towertalk@contesting.com
> >Subject: Re: [TowerTalk] Gizmotchy's
> >
> >
> >Hi Dan,
> >
> >You said this far better that I did! Thanks for the better explanation.
> >
> >For the record, I used a 2M yagi at 45° for a few years to "optimize"
> >(compromise?) both SSB and FM. Worked. Turned out is was great for
> >directing Fox Hunts -- with the tricks the foxes did.
> >
> >73 -- Larry -- W1DYJ
>
> Larry,
>
> I have a better idea. I have a 14 element Hygain 2m beam. I installed a TV
> antenna rotor mounted horizontal at the midpoint of the Boom and rotate the
> beam vertical for FM and horizontal for SSB and anywhere in between for
> possible phasing. I modified the rotor and installed limit switches and do
> not use a control box. I just added a On/OFF/ON switch to the my main
> controller. It has operated great for the past 20 years.
>
> * 73's Jim W5IFP *
>
> _______________________________________________
>
>
>
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>
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