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![]() Of course I will be trying this next idea even if no newsgroup answer is forthcoming: What happens if I tap off quad #1 on the side _opposite_ where I'm feeding it and connect quad #2 there? Wouldn't this additional load reflect back to feed #1 and lower its impedance toward 50 ohms? I don't know what feed #2 would be. Perhaps a jury-rig parallel line calculated to be 100 ohms would do it. (# 10 AWG wires on 5 mm centers would do it.) Phasing will be an issue. [I probably don't have a suitable test environment to tell success from failure.] 73, "Sal" It is easier and cheaper to do phasing/matching harnesses with open wire. Make it, don't buy it. Considering that a 1/4 wave is only about 19 inches you can make experiments with whatever wire is handy using popsicle sticks ("craft sticks" at the craft store) and masking tapefor the spacers. Make a field strength meter with a diode and dipole connected to a multi meter. space it about 30 feet in front of the quad. While transmitting verify the elements are all working by touching each element with a screwdriver. Operate the transmitter at lowest possible power. Too much fancy equipment gets distracting. John Ferrell W8CCW "Life is easier if you learn to plow around the stumps" |
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