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Having received some very good advice about the Carolina Windom, I now
ask a question to which I THINK I already know the answer. This particular version of the CW OCF dipole uses 300 ohm twin lead feedline terminated after 33 feet to a 4:1 balun. Richard warned of significant risk of RF on the outer (inner?) braid of the coax. I've never read of using a 1:1 unun right after a 4:1 balun to minimize RF on the outer coax. My thinking is that the 4:1 balun acts as a voltage type and will do nothing to ameliorate this. So, I will put some ferrite rings or snap on ferrites just past the 4:1 balun on the coax. Does this sound like a reasonable solution? John AB8O |
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