That cobra really seems to play. I've worked several folks using them on 75
all with terrific signals. Lou
----- Original Message -----
From: "John Miller" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, May 19, 2007 11:54 PM
Subject: Re: Tuning Ham sticks
> Sounds like the only real difference in yours and mien is the fence though
1
> leg of mine does go right over my pool. If you could get a little more
> height out of it it might work better or maybe even put up a vertical or
> something. I guess in some people's yards they just don't play as well as
> others, in mine, it really plays great though if it breaks again, I'm
> thinking about trying that new Cobra antenna, only available through HRO.
> I'm hearing a lot of good things about that one, it's a little pricy and a
> little longer at 140 feet instead of the 102 or what ever mine is now, but
> I'm thinking since I couldn't fix my G5RV as well as I'd have liked when I
> did fix it a couple weeks ago, I'll see about getting 1 of those some time
> this summer for standby. For some reason, solder just won't stick well to
a
> G5RV. We did the best we could with mine though, solder, tie raps, a
little
> tape, it's ugly but has held for a couple weeks so far and hopefully will
> last the summer.
> ----- Original Message -----
> From: "Lou Kline" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Saturday, May 19, 2007 11:45 PM
> Subject: Re: Tuning Ham sticks
>
>
> > 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
|
