Hi Tom.

Those SWR readings seem a little high to me.  I wonder if you could have an 
open or resistive feedpoint connection on one side of the ladder line on 
the antenna side of the ladder line?

With the tuner I can generally bring 40 meters down to between 1.6 to 1 
(low end) and 1.3 to 1 z(high end).  On 20 meters, I typically see 1.2 to 1 
on the phone portion of 20 meters with the tuner.  Either I've got a much 
better tuner than you, or there is a problem somewhere in your antenna system.

73, de Lou K2LKK



At 09:09 PM 12/27/2007 -0500, you wrote:
>Are these readings what you get after using the tuner?
>----- Original Message -----
>From: "T Behler" <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Thursday, December 27, 2007 9:09 PM
>Subject: more G5RV stuff
>
>
> > Hi, all.
> >
> > Can someone tell me what an acceptable SWR picture would be for a 102-foot
> > G5RV antenna?
> >
> > I re-oriented my G5RV antenna today, by making the ladder-line run pretty
> > much vertically from the antenna feed-point at the top of my 35-foot
> > tower,
> > to the coax that then goes into my shack from the base of the tower.  I
> > checked the connections between the ladder-line and the coax feedline, and
> > they still seem to be good.
> >
> > My SWR's are a bit better, and the auto-tuners on both my IC746 and
> > Kenwood
> > TS480 now tune the antenna on 40 meters (which I couldn't say before), but
> > the SWR's still seem quite high to me.
> >
> > On 40 meters, I get an SWR anywhere from about 5 to 1 down to about 4 to
> > 1.
> >
> > The antenna has its best SWR readings on 20 meters, which you'd expect,
> > but
> > even here, I can't get the SWR to go much below about 1.8 to 1 in the
> > center
> > of the band.
> >
> > Again, at least now, the auto-tuners in both of my HF rigs will tune the
> > antenna, but I'm wondering whether it's even safe or wise to use the
> > antenna
> > under these conditions.
> >
> > 73 from Tom Behler:  KB8TYJ
> >
>
>
>
>
>--
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>12/27/2007 1:34 PM

Louis Kim Kline
A.R.S. K2LKK
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