I've been playing around with EZNEC instead of mowing the yard.
A standard G5RV works well on 75m, 40m, 20m, and 12m. My
favorite band is 17m. If the G5RV dipole length is changed to
94 feet, and the series section changed to 40 feet of 450 ohm
ladder-line, the resulting configuration will work well on
40m, 20m, 17m, 12m, and 10m, according to EZNEC.
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73, Cecil http://www.w5dxp.com