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3 TiVo premiere boxes, 1 has poor signal no matter what?

Discussion in 'TiVo Help Center' started by CoaxMystery, Mar 9, 2013.

  1. CoaxMystery

    CoaxMystery New Member

    2
    0
    Mar 9, 2013
    This is making me crazy! I have 3 TiVos premiers, 2 are XL. So we're all on the same page- I refer to them as TiVo #1,#2 and #3. #1 is an XL, #2 is not XL and #3 is XL. Tivo# 3 (the second XL) was a replacement for a series 3 XL that wouldn't boot. TiVos #1 and #2 are working fine but #3 is having issues. The symptoms- macroblocking, stuttering and some channels won't tune.

    I have Verizon Fios (near Annapolis, MD). I have 1 coax line going into a 3 way splitter that feeds all 3 boxes. #1 and #2 both show signal strength in the 90s, #3 shows low 30s. If I pull the coax feeds from #1 or #2 and connect to #3 there's no difference.

    If I take the splitter out of the equation and connect the main coax feed to #1 or #2 I still have signal strength in the 90s. When I connect the main feed to #3 signal strength is in the 60s but it works fine. #3 shows lower signal strength no matter what I do.

    I really don't want to think that #3 is defective. It's probably a refurb as it was shipped from TiVo as a warranty replacement. I hooked it up for the first time today. What could be causing this? Any tips for fixing it?
     
  2. unitron

    unitron Active Member

    16,387
    2
    Apr 28, 2006
    semi-coastal NC
    Do you have #3 plugged into the same electrical outlet throughout all of this co-ax swapping?

    Are #'s 1 and 2 plugged into that same outlet?

    Are there cable cards involved?
     
  3. CoaxMystery

    CoaxMystery New Member

    2
    0
    Mar 9, 2013
    All 3 are plugged in to the same surge protector. I did swap power outlets and cords along the way, no difference.
     
  4. dlfl

    dlfl Cranky old novice

    6,996
    17
    Jul 6, 2006
    Near...
    Signal strengths usually vary with channel so you should be making all these comparisons using the same channel. Are you using a Tuning Adapter? That complicates things because even tuning to the same channel doesn't necessarily mean you're on the same QAM channel frequency. In that case you either need to compare using a non-switched channel or verify the frequency is always the same in DVR Diagnostics.

    Other than that, it sure sounds like you have a defective TiVo. 30 will definitely be a problem whereas 50 or above meets TiVo's stated minimum level for good performance.

    Also, if you are using TA's, you should use the same one for your comparisons since one TA may be attenuating the signal more.
     

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