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Jack Twilley wrote in message
BTW, if you have the legs in the same direction, and close together, coupling can be a problem. As one mentioned, always start with the lowest band first, and go up band by band. If you have a coupling problem, it will almost always be one of the higher band legs being effected by a lower band leg. You can usually get a usable match if you vary the wire length. Try to get each band under 2:1 SWR. I run multi leg dipoles here, but I run mine in different directions and have few coupling problems. IE: if I had a 40 dipole braodside E/W, I'd run the 20 dipole N/S. Sometimes if you do have a coupling problem, just moving the higher band leg a few feet can cure the problem. You will almost never see a higher band leg effect a lower band to any great degree. MK |
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