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vertical ant construction tips
I am planning to construct a vertical dipole array for 20m. The
electrical calculations are complete (with help from LB Cebik) and now I'm looking for some advice on the physical construction. I'd like to use Al tubing and find unfortunately that this is difficult to come by locally. I will likely obtain this then from Texas Towers and therefore the tubing lengths will be limited to 6 ft each. They do offer nesting sizes so the real question is what diameter to utilize for the lower most 6 ft segment (dipole being some 34 ft or so). Recalling the approx dimensions of commercial vert antennas I've had in the past leads me to believe that 1.25" or so would be sufficient. Comments/advice ?? I would like to do this without guys if possible and plan on attaching the lower-most segments to 4x4's. Thanks in advance all. Gary |
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