Hi.
Mine is strung across my back yard, up about 25 ft. With the lack of
available supports, that was the best I could do. I had to put about a 20
degree bend in the one leg to get it to fit into my yard, and unfortunately
there is a chain link fence around my back yard that may be complicating
things a lot. I use 450 ohm ladder line for the balanced portion of the
feed, with a 1:1 balun and then RG8X going back to the radio. I used a
dummy load to verify that there is no problem with the coax, and all
connections are clean and good. I only have a 90 x 62 ft. area to work in,
and am beginning to think that there is no way to put an efficient HF
multiband antenna system in an area that small.
73, de Lou K2LKK
At 11:07 PM 5/19/2007 -0400, you wrote:
>How is your G5RV set up? Mine plays best on 40, second best on 75 and 20's
>right there too. It's a little low in the band where it's best after we
>fixed it, but still plays great. I had to reattach the feedline a few weeks
>ago so we ended up taking about 4 inches off the ladder line portion. The
>SWR is a little lower in frequency on the bands than it was but funny thing
>is, I think the antenna's working a lot better now than it used to.
>----- Original Message -----
>From: "Lou Kline" <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Saturday, May 19, 2007 10:50 PM
>Subject: Re: Tuning Ham sticks
>
>
> > Hi.
> >
> > Has anyone tried two of these as a dipole on 75 meters, and if so, how did
> > you make out? I find that a G5RV really plays badly on 75 meters in this
> > location, and when a friend swept it with an antenna analyzer, it is
> > apparent why. On 3.925 MHz where our section net for NTS meets, the
> > impedance without an antenna tuner is just 4 ohms! It is much healthier
> > down around 3.500 MHz. It speaks volumes about the MFJ auto tuner because
> > it will even transform a load like that, but it actually brings the SWR at
> > the radio down to 1.4 to 1, but the efficiency is terrible! Since I use
> > 75
> > so much, I'm looking for a better multi-band antenna and plan to scrap the
> > G5RV as soon as I can find something suitable that will fit in my yard.
> >
> > I've been tempted to look at the ham stick idea as a way to get a quick
> > and
> > dirty antenna playing on one spot frequency on the band, knowing full well
> > that the bandwidth will be really tight down there.
> >
> > 73, de Lou K2LKK
> >
> > At 07:04 AM 5/19/2007 -0700, you wrote:
> >>Hi Butch,
> >>
> >>I am tuning them individually and plan to combine them later as a dipole.
> >>
> >>God bless,
> >>Mark
> >>God loves you!
> >>My ham radio lists.
> >>http://lists.topica.com/lists/funhamradio.
> >>http://groups.google.com/group/funhamradio-list
> >>My personal website
> >>http://funhamradio.bloki.com
> >>----- Original Message -----
> >>From: "Butch Bussen" <[log in to unmask]>
> >>To: <[log in to unmask]>
> >>Sent: Saturday, May 19, 2007 6:46 AM
> >>Subject: Re: Tuning Ham sticks
> >>
> >>
> >> > If you have them set up as a dipole, you want to tune both ends the
> >> > same.
> >> > If you tune one and not the other, you're efectively changing the feed
> >> > point. Remember, even though we feed them with coax, dipoles are a
> >> > ballanced antenna.
> >> > 73s
> >> > Butch Bussen
> >> > wa0vjr
> >> >
> >> >
> >>
> >>
> >>
> >>--
> >>No virus found in this incoming message.
> >>Checked by AVG Free Edition.
> >>Version: 7.5.467 / Virus Database: 269.7.5/812 - Release Date: 5/19/2007
> >>1:52 PM
> >
> > Louis Kim Kline
> > A.R.S. K2LKK
> > Home e-mail: [log in to unmask]
> > Work e-mail: [log in to unmask]
> > Work Telephone: (585) 697-5753
>
>
>
>--
>No virus found in this incoming message.
>Checked by AVG Free Edition.
>Version: 7.5.467 / Virus Database: 269.7.5/812 - Release Date: 5/19/2007
>1:52 PM
Louis Kim Kline
A.R.S. K2LKK
Home e-mail: [log in to unmask]
Work e-mail: [log in to unmask]
Work Telephone: (585) 697-5753
|
