On 12/1/2011 12:52 PM, David W LeJeune, Sr wrote:
Hi, Rick
Has anyone converted the Johnson KW Matchbox to an 'Alfred Annecke'
style matchbox? I have a KW Matchbox and you are absolutely right.
Works great on 80 and 40 feeding a 80 meter dipole with home brew
open wire feeders. But most difficult to match anything higher that
40 meters.
Dave WN5V
Hmmm...I must be one of the lucky ones. I have a 130-140 foot long
dipole, 25 feet off the ground, fed with ladder (window) line. I am
using a stock Johnson KW Matchbox.
I can get a perfect match on all bands (including WARC bands) with the
following two exceptions:
30 meters: I can only get the match down to ~ 2.4:1 -- but close enough
that I don't worry about it.
40 meters: Even though I get a perfect 1:1 match, I can only run about
500 watts; any more power than that exceeds the 15 kV breakdown of the
ladder line and sets it on fire (don't ask me how I know). <grin>
Maybe if you try changing the length of your feed line to the tuner...???
Obligatory Ten Tec content: Omni 6 (opt 3) and Centurion
Carter K8VT
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