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powerline communications

Discussion in 'Electronic Design' started by Neil, Jan 13, 2007.

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  1. Neil

    Neil Guest

    I am seeking help in understanding what powerline communications or
    Homeplug devices might be available to help me with a small project. I
    need run between 25 to 35 monitors from a server(s) that will be
    located between 50 to 400 ft from the server(s). I want to use the
    existing electrical infrastructure. Can someone provide me some
    information or feedback on this?

  2. What sort of monitors?

  3. LVMarc

    LVMarc Guest


    powerline communcations is atypically slow for most seriuos
    applications. 50 to 400 feet can be done many otehr ways!

    if this is a commercial venture ,please contact me at .

  4. Neil

    Neil Guest

    This is a proof of concept and we will use LCD monitors.


    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
  6. Comunication over power lines is a _bad_ thing.
    Not only because I am a radio amateur and cannot stand the interference
    on receivers.
    Power lines are not twisted, so if you have say 100 meter pieces,
    with pieces of various length going every way, you are simply broadcasting
    over a very wide band.

    What is the use of testing every piece of electronics for RFI and then
    putting up a antenne like that?
  7. jasen

    jasen Guest

    you want to send high definition video over powerlines?


  8. What do you want to display on the monitors, and how often does it need
    to be updated? Do you want the same data going to all monitors, or
    does each monitor get adifferent image? How accurate does the image
    have to be? I.e. can there be missing pixels or mispellings?

    In general powerlines are only good for very slow and unreliable
    communications, like 9600 baud or so. That leaves out video, unless
    you digitize, compress ther video to mpeg, and put up with a very slow
    update rate.

    There have been attempts to send higher rates ofver power lines, but
    there are many problems, not the least of which are interference with
    SW radio communications. Also in a industrial environment there often
    is much noise on the power lines, making communications impractical.

    I suggest you run twisted-pair ethernet.
  9. Guest

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