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On May 15, 1:10*pm, Cecil Moore wrote:
Even the SWR reading looking into ladder-line using an MFJ-259B is nowhere near the actual SWR on the ladder- line. For instance, a 50 ohm SWR meter can read a 1:1 SWR on 450 ladder-line when the actual SWR on the ladder- line is 9:1. Thanks Cecil, I see what you mean. The 450 ohm line could be seeing an impedance of 50 ohms making the swr 9:1. The MFJ-259B, being 50 ohm based, and seeing the 50 ohms would call the swr 1:1. Kind of obvious but something I probably would have overlooked. I'll get out the manual for the 259b and see if MFJ cautions the user on this. 73 Dykes AD5VS |
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