I have a C4XL and notice the swr problems here in windy Amarillo. However, its
never been a real problem and I do not have the spacers installed.
Matt & Carrie Trott wrote:
> Can anyone tell me if this is also a potential problem on the C3-XL?
>
> Thanks,
> Matt--K7BG
>
> -----Original Message-----
> From: owner-towertalk@contesting.com
> [mailto:owner-towertalk@contesting.com]On Behalf Of Clive GM3POI
> Sent: Wednesday, May 16, 2001 9:04 AM
> To: towertalk@contesting.com; Pete Smith
> Subject: Re: [TowerTalk] Force 12 C3 spacers
>
> Hi All,
> I guarantee the 20m and 15m driven elements touch on a C31RX-H.
> I was getting big jumps in swr on both the bands with just one insulator per
> side in the OEM stated position. The only solution was to add two more
> insulators near the tips of the 15m driver. The swr problem was occurring at
> wind speeds of 50-60mph so if you get those speeds and expect to be able to
> use your C31 ask for and fit two insulators per side.
> 73 Clive GM3POI
> ----- Original Message -----
> From: "Pete Smith" <n4zr@contesting.com>
> To: <towertalk@contesting.com>
> Sent: Tuesday, May 15, 2001 5:01 PM
> Subject: Re: [TowerTalk] Force 12 C3 spacers
>
> > At 09:52 AM 5/15/01 -0400, Jerry Keller wrote:
> > >This is not the first report of some F12 antennas needing spacers to
> avoid
> > >wind-whipping problems. I've heard of this before, from a fellow who took
> > >his down. He reportedly asked F12 about this, was told they haven't had a
> > >problem, but then was sent some spacers to alleviate the problem. The
> > >conclusion he drew was that if the F12 had no problems with this, how
> come
> > >they had spacers on hand to resolve the problem? I hadn't thought much
> about
> > >this with only the one report, but now there's several....I had been
> > >considering this antenna up until now. I am following this thread with
> great
> > >interest.
> >
> > Jerry, I have 2 C-3Es, at 22 and 30 meters above ground, in a wind
> > environment similar to yours, I suspect. Peak wind at this QTH so far has
> > been around 75 mph in gusts. The elements in the driven cell, like all
> > the elements, "surf" a lot in the wind, but I have never seen anything
> that
> > suggested they were touching. At most, what I see is some SWR fluctuation
> > when operating on 15 -- but it is small, perhaps .1-.2 at most.
> >
> > Could it be that Force 12 produced the spacers to meet the desires of
> > users, rather than because they believed there really was a problem?
> >
> > 73, Pete N4ZR
> > Contesting is!
> >
> >
> >
> >
> >
> > List Sponsor: Champion Radio Products - We'll be at the Dayton Hamvention
> > with all of our safety equipment and other products. Stop by booth #559
> and
> > say hi.
> > <A HREF="http://www.championradio.com";>www.ChampionRadio.com</A>
> >
> > -----
> > FAQ on WWW: http://www.contesting.com/FAQ/towertalk
> > Submissions: towertalk@contesting.com
> > Administrative requests: towertalk-REQUEST@contesting.com
> > Problems: owner-towertalk@contesting.com
> >
> >
>
> List Sponsor: Champion Radio Products - We'll be at the Dayton Hamvention
> with all of our safety equipment and other products. Stop by booth #559 and
> say hi.
> <A HREF="http://www.championradio.com";>www.ChampionRadio.com</A>
>
> -----
> FAQ on WWW: http://www.contesting.com/FAQ/towertalk
> Submissions: towertalk@contesting.com
> Administrative requests: towertalk-REQUEST@contesting.com
> Problems: owner-towertalk@contesting.com
>
> List Sponsor: Champion Radio Products - We'll be at the Dayton Hamvention
> with all of our safety equipment and other products. Stop by booth #559 and
> say hi.
> <A HREF="http://www.championradio.com";>www.ChampionRadio.com</A>
>
> -----
> FAQ on WWW: http://www.contesting.com/FAQ/towertalk
> Submissions: towertalk@contesting.com
> Administrative requests: towertalk-REQUEST@contesting.com
> Problems: owner-towertalk@contesting.com
--
Richard Thorne
Advo Companies, Inc.
806-342-0600
List Sponsor: Champion Radio Products - We'll be at the Dayton Hamvention
with all of our safety equipment and other products. Stop by booth #559 and
say hi.
<A HREF="http://www.championradio.com";>www.ChampionRadio.com</A>
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
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