Topband: Remove/reduce RF in control cables

Gerard Jendraszkiewicz jend at uchicago.edu
Wed Nov 11 06:39:53 PST 2009


Hello,

A question for the group ? I have a Inverted L with a good ground radial 
system. The tuner (Collins 180) is mounted at the base of the antenna. 
This allows me to use the antenna for 160-30M. I have 2 sets of control 
lines that are used for the roller inductor and vacuum capacitor. When 
using the antenna on 160 and 80 I get some RF back down the control 
cables an into the shack. I also get some RF into my antenna switching 
control cable (WX0B sixpack). Now the question, whats the best way to 
eliminate the RF pickup ??

Any ideas welcome ??

Thanks in advance !

73, Jerry, KE9I




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