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Thread: Chemical grounds

  1. #11
    Join Date
    Oct 2008
    Location
    Cleveland, Ohio
    Posts
    314
    I think of a "counterpoise" as part of a radio antenna.
    "counterpoise"
    A system of wires or other conductors, elevated above and insulated from ground, forming a lower system of conductors of an antenna.
    Kevin

  2. #12
    Join Date
    Mar 2008
    Location
    Michigan. It's a beautiful penninsula, I've looked around.
    Posts
    5,765
    Quote Originally Posted by Speedskater View Post
    I think of a "counterpoise" as part of a radio antenna.
    "counterpoise"
    A system of wires or other conductors, elevated above and insulated from ground, forming a lower system of conductors of an antenna.
    It can mean that, but not in this case. For one thing, wire used as a counterpoise for antennas must not be more than a couple inches below the surface or they won't work. They work the best above the ground. And, despite what Wiki says, antenna counterpoises do not have to be isolated from the ground to work. Most, in fact, are electrically bonded to the ground or a substitute for the ground (vehicle body).

    See this thread about your basic electrical counterpoise

    http://forums.mikeholt.com/showthread.php?t=80109
    Cheers and Stay Safe,

    Marky the Sparky

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