TWO-BAND DESIGNS TWO-BAND DESIGNS Bands Radiator Ladder Line Lower Resonance Upper Resonance Length (ft) Length (ft) Freq (MHz) SWR Freq (MHz) SWR VF = 0.975/40 144.83 89.50 3.87 1.8 7.25 1.6 30/17 54.75 36.17 10.12 1.8 18.12 1.3 20/17 77.67 76.17 14.13 1.7 18.11 1.6 20/15 51.00 50.67 14.17 1.1 21.27 1.2 20/12 68.00 46.67 14.15 1.7 24.92 1.5 17/12 28.58 46.67 18.11 1.6 24.95 1.5 17/10 …
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