Hi Yoon,
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Yes, besides erratic behaviors you described, the side tone also sounds funny.
Looks like to use reel wire to lower the SWR is the key. I could only get 1.8:1 from MFJ1720 as I remembered.?
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I will try on 10/12m again. If it works, it will be a good supplement to KH1.
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73
Wei AG6AQ
