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That makes sense to me!
Thanks for the correction. A bold but incorrect position frequently provokes some one who knows to reveal the correct answers... On Mon, 07 Nov 2005 15:33:54 GMT, Cecil Moore wrote: John Ferrell W8CCW Your deduction is not 100% valid. 1/4WL can be a BIG problem and worst case for matching. I guess MFJ is technically correct but confusing. For instance, assume a 50 ohm antenna and 1/4WL of 600 ohm open-wire line. The "resonant" impedance seen looking into the feedline would be 7200 ohms, outside the matching range for a lot of MFJ tuners. Half a century ago, we called that the "anti-resonant" point (akin to a parallel resonant impedance). Most amateur radio operators should substitute 1/2WL for 1/4WL in the above MFJ manual quote to avoid thinking 1/4WL is "no problem". |