[Elecraft] 43 Ft Vertical and Elecraft Tuners

[Don Wilhelm]

I use paralleled dipoles here, and I have limited the number of bands on 
a single feedline to 3 bands, so I have one for 20, 15, and 10 meters, 
and another for 30, 17, and 12.  The wires are spaced about 1 foot apart 
with PVC spreaders.

Tuning them is a bit of a challenge, but if one tunes the lowest band 
first, and then progresses to the next higher band, it can be done.  Do 
not try to mix 3rd harmonic bands such as 40 meters and 15 meters, or 80 
meters and 30 meters.

I do have a 3rd dual band for 80 and 40, but the radiators are arranged 
at right angles to each other so there is little interactions between 
those 2 bands.

73,
Don W3FPR

On 9/3/2013 11:35 PM, Charlie T, K3ICH wrote:
> I remember trying to tune a four pair parallel wire dipole for 20, 17 
> , 15 and 10 M.  What a bear.  Tweak one band and it would screw up the 
> others.  I finally got it tuned, but had to completely replace all the 
> wires since I had chopped and re-soldered all of them so many times.   
> I used ½" PVC pipe spreaders which kept the four wires about 2" from 
> each other. Once up, it would have been impossible to re-deploy due to 
> tangles.
>