[50mhz] Antennas
kr7o at vhfdx.com
kr7o at vhfdx.com
Thu Jun 18 19:49:11 EDT 2009
Why not just build a simple dipole or a pair at 90 degrees and feed them as
a turnstyle. Stack them vertically to bring the gain lower to the
horizon. The square loops are just folded up dipoles anyway. From your
location a single dipole may well cover most of the areas where you are
likely to work stations and will be much cheaper than any commercial
product. A pair of dipoles spaced at ~12' will give you almost the gain of
a small 3-el yagi and will have little visual impact depending on the
materials you use. Alternatively look at the Moxon's. I have worked a lot
of people using them and they produce a respectable signal for a small antenna.
At 05:33 PM 6/18/2009 -0500, Ken Kaplan wrote:
>Jim,
>
>I have a pair of stacked square loops spaced 9 ft apart and properly
>phased. I also have an M2 6M5X 5 element yagi at about the same
>height. I use a Flex 5000A with dual receivers so I can see the exact
>signal strength from both antennas simultaneously on the calibrated
>spectrum display The purpose of this setup is so I can see signals
>coming from directions other than where the yagi is pointed. I can tell
>you there is a very real and significant difference in signal strength -
>often 20 dB or more - between what the yagi is pointed at and what the
>loops can hear. I have a similar setup for 2 meters and see the same
>results. You would be much better off even with a small 3 element yagi
>on a lightweight TV rotator if at all possible.
>
>73,
>
>Ken N0GZ
>
>
>Jim Kunowsky wrote:
> > Hi guys,
> >
> > I am a relative newby to six meters starting last summer with an Arrow
> ground plane antenna. I know, not ideal, but it was a cheap way to get
> on six. I want to upgrade to something horizontal but a beam I think
> maybe out of the question for now. So I was wondering how many of you
> are using loops. I am thinking of either the Par or the M2...any comments?
> >
> > 73,
> > Jim / FM17
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73, Robert KR7O/YB2ARO, DM07ba/OI52ee (ex. N7STU)
kr7o at vhfdx.com
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