[Elecraft] 43 Ft Vertical and Elecraft Tuners

[mikefurrey at att.net]

Hi Jim,

I use exactly that here in Tampa. My antenna is a stealth 43' of green 18 
gauge wire up a tree and 43' of the same horizontal hidden in the bushes. I 
am in an apartment. The feed point is about 10' above ground. I feed it with 
open wire line from a 4:1 balun on the back of my K3 with the internal 
tuner. I am guessing the feed line is about 25'. It matches on 80-6 ... 
sometimes ... excessive rain causes a "HIGH CURRENT" on the radio and I just 
back down the power until it goes off.

I did tinker with different lengths of coax between the balun and the radio 
... 10 feet of RG58 and the best SWR on 20 was 2:1 and 6 meters would have 
nothing to do with it. I have not experimented with the length of the open 
wire line ... the set up seems to work fine as I currently have it.

43' is a popular height because it is 5/8 on 20 and can provide "3db" gain. 
For me the antenna works very well on 40, 30, 20 and 17. It is very poor on 
80 and the angle of radiation is a bit high on  15-10. I have worked locals 
on 6 (use a 6 m delta loop in attic the rest of the time). On 160 the tuner 
would have nothing to do with it. BUT on 160 during the Stew Perry I did add 
a base loading coil and hid 1/4 radial in the bushes and worked up and down 
the East coast plus VEs and Carribian.

My current goal is DXCC on RTTY and only confirmed on LOTW. With this set-up 
and I am up to 65 countries with only 100 watts.

Hope this helps.

73, Mike WA5POK/4 Tampa
--------------------------------------------------
From: "Jim Brown" <jim at audiosystemsgroup.com>
Sent: Monday, September 02, 2013 7:10 PM
To: "Reflector Elecraft" <elecraft at mailman.qth.net>
Subject: [Elecraft] 43 Ft Vertical and Elecraft Tuners

> 43 ft verticals have become a popular antenna, and while they have some 
> strong points, they present a very high SWR on most bands, so they require 
> a serious tuner to get them to load.
>
> I'd like to know of any stations using a 43 Ft vertical as a multi-band 
> antenna using nothing but an Elecraft antenna tuner for matching -- that 
> is, no "baluns", transformers, loading coils, or additional matching 
> networks.  I'd like to know the bands on which you are able to match it 
> well enough to get full power from the rig (or the power amp). I'd like to 
> know if the tuner is located at the base of the antenna, or, if in the 
> shack, the length of feedline between antenna and tuner.
>
> Thanks and 73, Jim K9YC
>
>
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