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Please HELP analyze Network Coax Stats

Discussion in 'DIRECTV Connected Home' started by pharmer53, Dec 21, 2011.

  1. pharmer53

    pharmer53 Mentor

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    Jul 13, 2007
    Just completed installing MRV and having issues with movies freezing or stopping alltogether. My setup is as follows:
    SWM-16
    HR-24 (No DECA or Ethernet cable attached)
    2- HR-22s (DECA attached)
    HR-23 (DECA attached)
    R-22 (HD) (DECA attached)
    Linksys Wireless G router (several years old)
    DECA Broadband Adapter into Green label splitter.

    I've attached images of the Network Coax Stats. It seems the Phy Levels are much higher than I've seen posted on this board. Could crimp on connectors at the wall plate be causing the loss of signal? Any help is much appreciated.
     

    Attached Files:

  2. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Dec 9, 2006
    The 46 & 57 are a bit high from "the norm", "but" your PHY MESH rates are "good enough" to not be a problem, so I tend to think this isn't your problem..
     
  3. pharmer53

    pharmer53 Mentor

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    Jul 13, 2007
    This may be a really dumb question, but does the Wireless router performance have anything to do with sharing programs between receivers? I'm still learning how all this deca and internet work together. Thanks!
     
  4. Drucifer

    Drucifer Well-Known Member

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    NY Hudson...
    No.
     
  5. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Not when all the receivers have a DECA. The wireless "hop" is just to your home network and internet. If you used DirecTV2PC, then it would come through the wireless link.
     
  6. bobnielsen

    bobnielsen Éminence grise

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    Jun 29, 2006
    Bainbridge...
    No, since the distribution is entirely within the DECA "cloud" the router doesn't really enter the picture (as long as there aren't other signals sharing the DECA portion of your network). There will be a very small amount of data between the receivers and your router (DNS requests, etc.) but it should be insignificant.
     
  7. Diana C

    Diana C Hall Of Fame DBSTalk Club

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    New Jersey
    As VOS said, the loss levels are a bit high, but the throughput looks ok. The crimp connectors in and of themselves should not be a problem (I have nothing but crimp connectors in my installation, and my highest PHY number is 30).

    What kinds of splitters are in use, and what is the topology (cascaded splitters and the like)? What are the cable lengths involved? I suppose it is possible for the low signal to cause an intermittent drop in throughput (perhaps when some RF interfence occurs).

    The more information you can provide, the more suggestions that can be provided.
     
  8. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    The PHY MESH are "so good" as to suggest the PHY Levels are well within the signal to noise ratio for full operation.

    A system test will return an error when the PHY MESH is at/below 220.
     
  9. pharmer53

    pharmer53 Mentor

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    Jul 13, 2007
     
  10. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    While I doubt it will help your playback issues, you can improve your PHY LEVELs by changing the 8-way splitter for a 4-way.
     
  11. pharmer53

    pharmer53 Mentor

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    Jul 13, 2007
    Funny you mention that because I've already ordered a 4-way to replace the 8-way splitter. Should have it changed out by Friday.
     
  12. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    I would expect only about a 4 dB improvement
     
  13. phoneman06

    phoneman06 Mentor

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    Feb 20, 2005
    Where can I find the network coax stats menu?
     
  14. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    These come from a menu that can only be accessed from the front panel of the 24, 25, or 34 models that have internal DECAs.
    Pressing both the guide and right arrow "buttons" will bring up a menu with coax as an option. Selecting it will start the testing. There are two test and post 1 shows the screens.
     
  15. phoneman06

    phoneman06 Mentor

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    Feb 20, 2005
    Thanks for the info. I only have a H25 and the rest of my receivers are the older models. My phy levels are negative numbers, is that an issue?
     

    Attached Files:

  16. Drucifer

    Drucifer Well-Known Member

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    NY Hudson...
    One mo' Q then. What are bad numbers?
     
  17. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    The negative display is the proper annotation of loss which these number are.
    In up coming software updates, they all will be displayed like this.

    BTW: your losses are low [good] and your MESH are high [also good]
     
  18. LoweBoy

    LoweBoy Legend

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    Sep 15, 2006

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