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|2 element 6 meter beam||KD2AAG||on 27/1/13|
|Thank you Mr Lau!
Then riddle me this: I am (finally) finding VHF current baluns for my project but now am wondering if a matching section AND balun are both required? I am starting to get my head wraped around the gamma match concept but need to know if BOTH are required? Can a 75 Ohm 1/4 wave coax matching stub suffice? (In addition to a 1:1 current balun?) Thank you!!
|2 element 6 meter beam||KD2AAG||on 21/1/13|
|I noticed in that 1982 QST article that the authoir used a 180 degree phasing harness. I have been looking into homebrewing a couple of yagis for 6m and 2m and noticed that some of the plans called for 50 ohm coax direct feed...no balun, phasing harness, gamma feed or even hairpin matching. I also am finding it hard to find baluns for VHF. Is it that VHF antennas no longer need baluns or special matching? While I live on a mountain and all the neighbors have CATV I still do not need RFI/TVI problems. What am I missing? Am I trying to build VHF antennas with an HF mentality?|