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signal amp on an OTA antenna with a Dish splitter

Discussion in 'DISH™ OTA Support and Discussion Forum' started by Lou, Jan 16, 2017 at 7:54 PM.

  1. Lou

    Lou Cool Member

    Oct 31, 2006
    I have a non amplified antenna and a Dish. Both signals are combined, then a single wire comes into the house, which then gets split OTA/Dish at the set. I am considering buying a Radio Shack hi gain amp which has an amp at the antenna and the 2nd half of the amp is inside. In reading how this works, the amp sends some power out to the front end..antenna (as well as amps up the back end). If this unit is sending power out and the dish is also attached out there, can this damage the LNB?
  2. RBA

    RBA Active Member

    Apr 14, 2013
    Probably won't work, if you are using a diplexer for combining/splitting it blocks voltage on the TV antenna side so the amp doesn't get power.
  3. scooper

    scooper Hall Of Fame

    Apr 22, 2002
    Youngsville NC
    If you need to power a remote preamp (like what you just described) - Use a dedicated cable from the power supply to the preamp. You can use the diplexers before OR after (again, both on the same cable).

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