[NLRS] [BC'ers] Fwd: Re: Anybody have experience with multi-band feeds?

[David Palm]

I have Aurora 2011 marked out on my calendar and am going to do my best to
be there with KC9JTL and KF9OP.

Now, I want to get this dish with a multi-band feed ready to try on the
range.  I will probably have a dedicated dish for 10 GHz (I'll probably be
asking more about modifying a dish for that later.)  This would be for
3456/5760 and, possibly but it seems a stretch, 2304.  I need some advice.

I have the PCB Vivaldi antenna from Kent Britain for the multi-band feed.  I
currently have two dishes.  Both are offset feed.  One is a normal DirecTV,
18" wide and about 20" tall.  The other is a Channel Master, 24" wide and
18" tall.

Which, if either of these, would be better and why?  The CM obviously has a
little more surface area.  If neither of these would be a good match, what
would you recommend and where would I get it?  And any good ideas on
mounting the PCB Vivaldi, so that it can be focused for optimum
illumination?

Thanks and 73,

David  W9HQ


On Sat, Feb 5, 2011 at 3:02 PM, Dr. Gerald N. Johnson
<geraldj at weather.net>wrote:

> Aurora May 14, White Bear Lake MN, if the portable signal sources work,
> 144 to 10 GHz at least. In the morning providing it doesn't snow.
>
> 73, Jerry, K0CQ
>
> On 2/5/2011 2:21 PM, David Palm wrote:
> >
> >
> > Thank you all for your very interesting replies.  It seems that if I'm
> going
> > to give this a try with a WA5VJB Vivaldi as a multi-band feed, I should
> > strive to get it someplace where its performance can actually be
> measured.
> > So that leads me to the next question.  Are you guys going to have a
> > get-together with an antenna range this spring, as I think has happened
> some
> > years in the past?  If so, I really want to get that on the calendar and
> try
> > to drive up for that.
> >
> > Thanks again and 73,
> >
> > David  W9HQ
> > ______________________________________________________________
> >
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