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Length of coax

Discussion in 'General Discussion' started by kc2lzf, Jan 24, 2006.

  1. kc2lzf

    kc2lzf Guest


    What length of coax (or multiple there of) is required to maintain good vswr ratio?

    I'd like to install an external antenna (12dbi) approx 30ft up mounted to mast pole. Also, will be using Times Micro LMR-400.

  2. jchuit

    jchuit Network Guru Member

    I think that it doesn't matter.

    The vswr will stay the same, maybe the only thing with very long cables is some echo after transmitting. For echo cancelation a smart length could be usefull.

    Using air cable can be tricky, when using a omni antenna, the vertical cable could fill with rain-water.
    I read that this is a LMR-400-cable, this means there's no open space that could fill with rain-water.


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