Do what, Gary?  Both of my g5rvs are just attached with no cores.  Besides, even
those with cores at the antenna will stilol show measurable rf at the opposite
end of the ladder line.  That's why the choke is down there rather than up at
the antenna.  However, most of the ones I've seen and all of the ones I've made
have no core at the mid point of the antenna.  I have two up now (one with
copper wire and the other with coax) and neither has such a configuration.  One
of mine is hime made and the other is not.

Tom


Tom Brennan  KD5VIJ, CCC-A/SLP
web page http://titan.sfasu.edu/~g_brennantg/sonicpage.html

On Fri, 21 Dec 2007, gary wrote:

> Date: Fri, 21 Dec 2007 22:27:41 -0500
> From: gary <[log in to unmask]>
> Reply-To: For blind ham radio operators <[log in to unmask]>
> To: [log in to unmask]
> Subject: Re: g5rv question
>
> Hi Tom,
> You do not need to make a choke.  The ferrite cores inside the PVC where the
> twin lead and the coax come together.  Spacing the twin lead about 3 feet
> away from metal brackets works really well.  Gary KB2YAA
> ----- Original Message -----
> From: "T Behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, December 21, 2007 7:34 AM
> Subject: Re: g5rv question
>
>
> >    Gary:
> >
> > Thanks for the confirmation that vertical is better.
> >
> > I'm going to have to check too on whether I have enough coax from the
> > ladder-line connection to where it goes into the conduit that runs into
> > the
> > shack to see if I have enough to make the choke that Tom suggested last
> > night.
> >
> > But, first things first:  I have to make sure everything is mechanically
> > sound out there, and then get the ladder line to be vertical again.
> >
> > 73 from Tom Behler:  KB8TYJ
> >
> > ----- Original Message -----
> > From: "gary" <[log in to unmask]>
> > To: <[log in to unmask]>
> > Sent: Thursday, December 20, 2007 11:34 PM
> > Subject: Re: g5rv question
> >
> >
> >> Vertical is better and away from metal.  I had repaired my G5RV a couple
> >> of
> >> times.  Once my son ran over it and I had to shorten the coax about 7
> >> feet
> >> to get rid of a bad section.  the wind plays havoc with the coax to twin
> >> lead connection.  There will be about 7 ferrite cores in the PVC center.
> >> I
> >> just slide them back while I made another connection and then reinstalled
> >> them.  Gary KB2YAA
> >
> >
> >
> >
> > --
> > No virus found in this incoming message.
> > Checked by AVG Free Edition.
> > Version: 7.5.486 / Virus Database: 269.17.5/1191 - Release Date:
> > 12/20/2007 2:14 PM
> >
> >
>
>