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

Current using MoCA wanting to upgrade...

Discussion in 'DIRECTV Installation/MDU Discussion' started by JohnSorTivo, Nov 21, 2013.

  1. peds48

    peds48 Genius.

    20,082
    1,068
    Jan 10, 2008
    NY
    either way is fine
     
  2. slice1900

    slice1900 Well-Known Member

    7,355
    735
    Feb 14, 2013
    Iowa
    Doesn't the PI essentially have a 2 way splitter inside it?
     
  3. peds48

    peds48 Genius.

    20,082
    1,068
    Jan 10, 2008
    NY
    "kind of" I have not measure the loss through the PI. this is why I see no benefit from a 4way and the 8way.
     
  4. inkahauts

    inkahauts Well-Known Member

    22,679
    1,105
    Nov 13, 2006
    I personally prefer connecting the pi to the power only port on the swim but I don't think that's an option here.
     
  5. peds48

    peds48 Genius.

    20,082
    1,068
    Jan 10, 2008
    NY
    Right, since the OP (TS) has a SWM LNB, that is not an option.
     
  6. slice1900

    slice1900 Well-Known Member

    7,355
    735
    Feb 14, 2013
    Iowa
    Considering how many ways I was able to split a SWM signal in my testing on a 100' run before I lost picture, I think all the worry over number of splits is much ado about nothing.

    I don't remember ever reading about someone fixing an issue with SWM by replacing a splitter with a smaller one. Even if they had, the actual cause was probably something else at fault, like defective equipment/cabling.
     
  7. peds48

    peds48 Genius.

    20,082
    1,068
    Jan 10, 2008
    NY
    Actually I have. there was an install that had an 8way feeding a 4way feeding a 4way. the last 4 way was using only two outputs. When I hooked up my meter to the last 4 way, I was getting ~-65dbm, the two receivers were getting 771 (they were SD receivers) by removing the last 4way and moving those cables to the second 4 way. I was able to get in the range of ~-58. still close, but they were working
     
  8. inkahauts

    inkahauts Well-Known Member

    22,679
    1,105
    Nov 13, 2006
    Right, since the OP (TS) has a SWM LNB, that is not an option.


    I've been looking at his diagram which shows a swim16 not an lnb and was thinking his issue was number of cables not that he's using lnb swim. Doh!
     
  9. inkahauts

    inkahauts Well-Known Member

    22,679
    1,105
    Nov 13, 2006
    Considering how many ways I was able to split a SWM signal in my testing on a 100' run before I lost picture, I think all the worry over number of splits is much ado about nothing.

    I don't remember ever reading about someone fixing an issue with SWM by replacing a splitter with a smaller one. Even if they had, the actual cause was probably something else at fault, like defective equipment/cabling.


    I hate the 8 ways if for no other reason than they are a pain to screw all the cables into because of how close it is space vs a four way. Plus less to terminate. So unless you new more than four Id not use it myself.

    As for fixing issues as peds experienced it'd be on fringe installs that it would help only.
     
  10. slice1900

    slice1900 Well-Known Member

    7,355
    735
    Feb 14, 2013
    Iowa
    I wish I had a meter so I could have seen how low my signal was after I had it split over 1000x on a 100' run and still had a perfect picture...maybe the tuner in the H20-100 is able to really pick up some exceptionally weak signals? I should repeat the experiment with a H24 sometime.
     
  11. peds48

    peds48 Genius.

    20,082
    1,068
    Jan 10, 2008
    NY
    it has to be a flaw in your "test" the math does not lie.
     
  12. slice1900

    slice1900 Well-Known Member

    7,355
    735
    Feb 14, 2013
    Iowa
    I have a SWM16 output going into an 8 way splitter, to a 3' coax jumper to a coupler to a ~100 foot coax segment connected to a H20-100. I progressively added the following between the 8 way splitter and the jumper, adding a foot or two of coax on each one and checking the SWM signal screen after each addition:

    4 way satellite splitter
    3 way satellite splitter (I think on the 2 way leg)
    4x 2 way satellite splitters
    2 way 900 MHz splitter (but I know it passes satellite frequencies fine)

    After I added the last SWM channel 0 dropped to 88 and channel 3 (that it was on) dropped to 70, but I still had picture. One more 900 MHz splitter dropped channel 3 to 0 and picture was of course gone.

    The "math may not lie" but that was the result of my test. Not sure how I could have had a flaw in a test where I'm just adding splitters in a chain. I wanted to see how much margin there was for loss, I didn't expect to be able to add nearly that much, but I did. I'll try it again sometime with a different H20 on my other SWM16 and with an H24 in case I have a H20 with a magic tuner or SWM16 with AGC going into overdrive.
     
  13. peds48

    peds48 Genius.

    20,082
    1,068
    Jan 10, 2008
    NY
     

Share This Page