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  1. R

    Built a 3 element yagi for CB; every station had talking until I keyed the mike

    The whole microphone thing was just a bad connection, but I did notice that with just the positive wire connected to one element it reads low TX power but receives just as well with less noise. With the ground also connected there is equal reception with more noise and the TX power reads full.
  2. R

    Why is the optiamal element length 91% if half the wavelength for a dipole?

    "Actual best length of a dipole antenna is about 91% of that of 1/2 wave in free space, so to be precise about this, the lengths below are already reduced by approx. 9%." TV Rabbit Ear I meant OF the wavelength.
  3. R

    Built a 3 element yagi for CB; every station had talking until I keyed the mike

    How could the impedance be 25 ohms? Why would it be that low? What if it was end fed? In the website it says to get a 3/8 tube for a gamma tube but what is a gamma tube? What kind of tube is that talking about? Whoops I entered that twice. I didn't see it because it was on page two.
  4. R

    Built a 3 element yagi for CB; every station had talking until I keyed the mike

    Why would the impedance be 25 ohms? Why would it be so low? What would it be if I end fed it? In that site it says to get a piece of 3/8 tube and in the diagram it's labeled "gamma tube", but what is "gamma tube".
  5. R

    Built a 3 element yagi for CB; every station had talking until I keyed the mike

    Okay I knew it would need some kind of matching device, and I was going to ask this before, actually. What should the impedance of a half wave yagi be? 300 ohms just like a half wave TV yagi/log periodic/corner reflector/everything else that's jammed into a TV antenna. If so then a common 300-75...
  6. R

    Built a 3 element yagi for CB; every station had talking until I keyed the mike

    I decided to re-put a CB radio in my truck since I had a bunch of them laying around. They are all old. I chose the Uniden Trucker because it was the best of them with ANL, SWR Cal etc. I couldn't find my old 10 dollar little antenna the same as the ones most people have (about two and a half...