[TowerTalk] Current Choke for Ladder Line

Hans Hammarquist via TowerTalk towertalk at contesting.com
Tue May 12 14:01:29 EDT 2015


Gentlemen,


I have seen many articles how to build and/or buy common mode chokes for coax cables but I don't remember any articles how to build (or buy) and choke for a 400 ohm ladder line.


The common mode current on a ladder line is causing the same problem as a common mode current on a coax. i have a choke between my tuner and radio which reduced noise quite good but wonder now how much RF power I radiate and signal I receive from the CM current in the feeder to my OCF dipole.


Any ideas/comments?

Hans - N2JFS


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