Hi Jon, thanks for your input. So I guess the antenna pattern is simply
the spacing of the antennas and the phase you dial in, but you would need
the antennas aligned so the null was in the correct direction?
73 and HNY Kenny K2KW
On Wed, Dec 27, 2023 at 10:35 AM Jon Zaimes, AA1K wrote:
> I u
HI Tree,
Thanks for your input. I'm leaning towards a 2 element phased vertical
array with a quasi-cardioid pattern for my application. it will avoid any
phasing box overload issues.
73, Kenny K2KW
On Sun, Dec 17, 2023 at 2:12 PM Tree wrote:
> I think the concern about overload is another re
Steve, thanks again for your fantastic work! For those of us who have
beverages in the forest, this is a great improvement in beverage
maintenance. Though moving 300-400' of trees (per BOG) and chopping off
branches is a chore. In the long run, it's a big advantage.
73, Kenny K2KW
_
Roger et al.
I happened to be in the shack and turned on the radio around 0400z. I was
being heard well on CW and made a few EU QSOs. I then switched to SSB at
0430z and I worked a few EU stations on SSB: II2S, TM1K, ON4WW, OT4K
(could have been a bust). QRN here in Virginia was really bad, an
Hi Roger, I heard you at about 559 QSB up/down. I called a few times but
you didn't hear me. I also sent CQ a few times 1 kc away thinking you
might see the RBN and call me. Guess it was not meant to be.
73, Kenny K2KW
>
> Message: 1
> Date: Thu, 16 Mar 2023 09:59:28 -
> From: "Roger Kenn
Thanks for all the replies on and off the reflector. My antenna, now a 90'
top loaded vertical with 60 x 100' radials, was not transmitting well.
While trying to fix it, I changed from an inverted L to the top loaded
configuration, and I stripped off the hairpin coil (1/4" copper tubing) and
the c
Hello, I have an inverted-L and the radials are laying on the ground AND
the coax is on the ground too with radials right near the coax run. Do I
need a choke to stop any feedline coupling/radiation, and if so, where in
the feedline?
The antenna is in the woods so burying either the radials or co
Below, KK9A took a snip from my web page. When I wrote that, I missed one
very important point: simple trigonometry.
Let's imagine a perfectly straight coastline, and we place a 160 vertical
1/2 WL back(520' for this discussion) to try and get that potential of 3 dB
of gain. That "gain" is only
Rune,
Back in 1997 N6BV and I did some testing using "ladder line" (not the real
600 ohm stuff) and some 9:1 baluns on each end. We were looking at a site
in YV where the beach was about 1000' from the hotel room. We tested the
following:
- loss in back to back baluns
- loss in 100' of ladder lin
You could also try 10 or 12 turns of #12 or 14 gauge wire, 2" diam
across the feed point and ground.
Spread/compress the turns to get the lowest SWR/best match.
Just to be specific: this "hairpin" match only works if the antenna
feedpoint impedance is lower than 50 ohms, The hairpin is an up-t
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