n7tb wrote
> ... the loop is connected at its end points to 450 ohm ladder that has one
> leg attached to the tuner's antenna connector and the other leg to the
> ground lug. Coax comes from the tuner to my rig ...
Terry, I'm using similar setup.
To avoid radiation from ladder line and keep the
I use a 80 meter vertical loop with about 124' of 450 ladder line to a 1
to 1 current balun right outside the window. A 3 foot piece of coax
goes to the tuner (this coax should be as short as possible). You will
find that the Elecraft tuners will cover a broad range. Mine covers all
bands
First, let me say "thank you" to all of you who wrote me very thoughtful and
helpful responses to my question. I received many directly to my email
address. I came away many great ideas. One is to get ELNEC and use it! I
am sorry I did not elaborate about the size of my loop. It is 60 feet on
Correction, get the EZNEC software.
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Terry,
I do not really intend to answer your questions about the switching the
feedline, that is up to you In the old days, we did that with a knife
switch, or more 'rich and sophisticated' hams used a DPDT relay.
For the balun, the impedance at the shack end will determine whether a
4:1
I currently have a horizontal loop at my QTH being matched by an Icom AH-4
Tuner. It is interfaced with my Icom 756. I will be running a new-to-me K2
with the auto tuner installed. Right now, the loop is connected at its end
points to 450 ohm ladder that has one leg attached to the tuner's
I have been quite pleased with this delta loop since I put it up about six
weeks ago. The pattern does seem to be omni-directional and I notice that
the noise level appears to be at least fairly low. I've worked several
stations (North Cook Islands, Bonnaire Ireland) that were just above the
Your posts about the horizontal delta loop prompted me to ask this question. I
know someone who has a 2WL horizontal loop erected about 45 feet high on the
average. It is over a field of six foot high vegetation. Will that absorb some
of the signal?
Dick, n0ce
I've always been a fan of the horizontal loop. The Delta config works well.
Constructive and destructive effects on the radiation of the antenna occur
depending on the frequency, size of the loop and height above ground.
A 140 ft loop at 45 feet works well on 40 meters and up.
You get
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