1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Direct Tv HD Sat and Off Ait attenna issues?

Discussion in 'Technical Talk (Closed Forum)' started by Joiner, Mar 26, 2005.

  1. Joiner

    Joiner New Member

    1
    0
    Mar 26, 2005
    :confused: I have a Direct TV HD set-up and want to add my off-air antenna and diplex it down same cable. I can't get my local channels in San Diego, so I am pointing at LA. Need a pre-amp for the Antenna (Winegard AP-4700). Now, since the sat. dish needs a power pass and the pre-amp needs a power pass I obtained a SVI 35-SDX100DC Power pass Diplexer - with power pass to both sat and antenna. Will the different voltages on each link be a problem? If so how do I solve this problem?
     
  2. SimpleSimon

    SimpleSimon Hall Of Fame

    5,468
    0
    Jan 15, 2004
    Yup - you've identified the problem. The LNB/switch needs to see 13V vs. 18V to switch transponder bands.

    Two possible solutions:
    1. If the pre-amp will run on a variable voltage from 13-18VDC just use the power-passing diplexer and hope your receiver has got enough oomph to drive both units.
    2. Use a NON repeat NON power-passing diplexer and put the power-inserter closer to the pre-amp than the diplexer.
     
  3. oljim

    oljim Godfather

    485
    0
    Aug 6, 2002
    Best to run a cable just for OTA
     

Share This Page