Ahh yes! "The Illuminator." As I remember, he even put three bulbs in
a Vee, each decoupled to make a "Phased Illuminator." I believe he
worked all continents on the single bulb. I'd guess that all of us of a
certain age have had someone call us as we were tuning up on a light
bulb. My
On 10/30/2021 4:47 PM, John Harper wrote:
Multiband DXCC is NOT a measure of antenna performance
Au contraire, it's one measure.
Many years ago, N6BT published a piece in QST describing how had worked
DX on a light bulb. He had carefully decoupled it so that it was,
indeed, the lightbulb
: elecraft@mailman.qth.net
Subject: Re: [Elecraft] feeding a half-wave dipole with ladder line
Bob,
Either you did not read what I wrote carefully enough, or I did a poor job of
explaining.
First off: I an not a HF DX chaser or HF Contest junkie. HF is a very
occasional activity when I want a c
to the shack defeats using it as a vertical.
> Ideal would be a QRO ATU at the ground-end of the vertical wires (but I'm too
> cheap for that). I have a QRO Drake Tuner to do the job at the shack. I'll
> try out my 1:1 balun.
>
>
> 73, Ed - KL7UW
>
> Date: Fri, 29 Oct
>Multiband setups like you describe are for when you're limited in what
>you can put up
As many/most are.
>Multiband DXCC is NOT a measure of antenna performance
Au contraire, it's one measure.
John AE5X
https://ae5x.blogspot.com
__
too cheap for that). I have a QRO Drake Tuner
to do the job at the shack. I'll try out my 1:1 balun.
73, Ed - KL7UW
Date: Fri, 29 Oct 2021 18:48:36 -0500
From: Bob McGraw
To: elecraft@mailman.qth.net
Subject: [Elecraft] feeding a half-wave dipole with ladder line
Message-ID: <843199
On 10/30/2021 11:27 AM, John Harper wrote:
I use an 80m dipole as you describe for 30, 40, 60 and 80 meters. Before
putting up a tower/Yagi, I used it 10-80 and have worked 8B-DXCC (CW) with
it.
Multiband DXCC is NOT a measure of antenna performance, nor is VSWR.
I've worked more than 250
I use an 80m dipole as you describe for 30, 40, 60 and 80 meters. Before
putting up a tower/Yagi, I used it 10-80 and have worked 8B-DXCC (CW) with
it.
15 ft of RG-213 goes out the shack window to a 9:1 balun, then 450-ohm
ladder line up 110 feet to the center of the dipole.
er and uss the antenna as a top loaded
vertical.
73
Bob, K4TAX
On 10/29/2021 4:59 PM, elecraft-requ...@mailman.qth.net wrote:
Message: 3
Date: Thu, 28 Oct 2021 13:23:23 -0800
From: Ed Cole
To:elecraft@mailman.qth.net
Subject: [Elecraft] feeding a half-wave dipole with ladder line
Message-ID:<68274
Yes the antenna will be very high impedance. As suggested, connect an
additional pair of wires for 40 meters to the same feed point of the
dipole, if possible put them at right angles to the existing dipole.
__
Elecraft mailing list
On 10/28/2021 2:23 PM, Ed Cole wrote:
I am redesigning my 40/80/160/630m antennas.
A year ago the tower I was supporting my 630m Invert-L was damaged by
wind and taken down. Replacement tower is shorter so not suitable end
wire support for HF antenna.
Hi Ed,
Take a look at the antennas on
Are you sure your ladder line is 200-300 Ω? My calculations say that 12 AWG
conductors 12 inches apart makes 680 Ω line.
wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)
> On Oct 28, 2021, at 2:47 PM, Joe Subich, W4TV wrote:
>
>
> Your 130' dipole will be damn
Your 130' dipole will be damn near impossible to feed on 40 meters as
the center is very high impedance. You would be better served to
hang a parallel dipole (33' per side) under the 65' wires and use
RG213/RG8 for the vertical section.
The additional 33' wires will give you marginally more
I am redesigning my 40/80/160/630m antennas.
A year ago the tower I was supporting my 630m Invert-L was damaged by
wind and taken down. Replacement tower is shorter so not suitable end
wire support for HF antenna.
I decided to repurpose my 80/40m dual dipole into a based-loaded 40-foot
14 matches
Mail list logo
