[Elecraft] [KX1] KX1 | KXAT1 ATU questions

[John W2XS]

Dan - I have the same antenna and the same balun. It is a great combination
from 160m to 10m.  Before I used the balun, however, I used a balanced
Johnson Matchbox. I found that I had to add some length to the original
ladder line (about 18 feet) to get all bands to match (including all of the
WARC bands).  30m was my toughest band, but once I got 30m to match nicely
then all the other bands matched too. So you might try adding some ladder
line to the original feedline.  (Subtracting may also be effective but I
added).

I love QSYing from band to band now with the K3 or K2. The K2 and K3 tuners
remember the settings so I am instantly matched without having to generate
RF.

Good luck.

73,

John W2XS



My configuration was Cobra Senior Ultralight up 60-66’ at one end 45-50’ 
at the other with center up about 55-60’ | 81 feet of 450 ohm ladder 
line runs that runs about 1’ foot through a casement window | Balun 
Designs 4:1 4113t current balun | 3’ coax with 239 – 239 connectors 
[703+] OR an amphenol 239/BNC adapter [KX-1].


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