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Thread: Dipole?

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  1. #1
    You would use LMR400 for the 30 foot feed line then switch to ladder for the outside run? How would you switch from LMR400 to ladder?

    Quote Originally Posted by KC2UGV View Post
    For internal feedline, LMR400 (Due to distance), outside feed line, I'd do ladder line. As for antenna, you can't beat a dipole, except with a yagi.

    If you're brave, you can try ladder line all the way. Might get interesting in the house itself. If you have a large budget, LMR400 is about as lowest loss as one can get.

    Another suggestion: run the dipole from the tree line, to the corner of the house. You'll save on feedline distance.

  2. #2
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    Quote Originally Posted by kn4bbc View Post
    How would you switch from LMR400 to ladder?
    1:1 current balun. Either external, or a tuna that has one built in. If external, keep the tuner-to-balun runs relatively short, as even low-loss coax doesn't like high SWRs all that much (it's not like the SWR on the ladder line part is any lower, but open wire/twinlead exhibits much, much lower losses under high SWR conditions than coax does)
    Jim
    The machine does not isolate us from the great problems of nature but plunges us more deeply into them. - Antoine de Saint-Exupéry



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