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![]() .. The only times I had horrible results with a half wave was a time years ago when I tried to make a center fed job, using peeled back coax braid as part of the antenna. The decoupling from the line was horrible on that thing. That was on VHF though where the problem shows up more. MK Ive had trouble with this type of antenna too. Turning the shield inside out over the feedline is not a good idea. The outer viynl jacket has some very poor RF characteristics not to mention it is a bear to do. Stangely enough plans for this antenna abound. Shakespeare used to build a CB antenna lie this called the big stick They latter change it to four wires inside a fibergas tube with th wires imbedded in the fiberglass connected to the shield of the feedline. Then the feedline is centered in the tube using styrofoam. I built something similar using a metal tube connecting to the shield with the coax down the middle of the tube also using little pieces of styrofam to center the cable in the tube. This seemed to work pretty good. |