Green/Yellow and coax lengths

Discussion in 'DIRECTV - Coax Networking (private)' started by veryoldschool, Aug 2, 2009.

  1. Aug 2, 2009 #1 of 50
    veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    So I've been wondering if there is any correlation between the two.

    1. If you have long coax runs off your splitters to the DECAs, and are all of yours green?
    2. You have short [10'] cables and you're still green?
    3. You have [like me] short cables from your splitters to the DECAs and you have yellow?
    4. You have short cables and you have all green?
    5. You have a mix and?
     
  2. Aug 2, 2009 #2 of 50
    69hokie

    69hokie Icon

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    All green. Network connected DECA is ~100' from 1st splitter off SWM8 along with (split off the same 100' RG6 cable) 1st receiver DECA (HR21-700). Other receiver DECA's are ~40' (HR21-100) and ~100' (H21-200)from 1st splitter.
     
  3. Aug 2, 2009 #3 of 50
    Davenlr

    Davenlr Geek til I die

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    I have 2 receivers 25' from the 8 port splitter, and one 50' from the 8 port splitter. The filter is connected 8 inches from the lnbs power inserter signal out, and 2" from the filter to the 8 port input. The Inet connection is using a 25' run of coax to the network. All green here also. Using a mix of RG59 and RG6 to the receivers, with no noticable difference between the two (network or signal strength wise). I do have all the unused ports on the splitter terminated with 75 ohm terminators.
     
  4. Aug 2, 2009 #4 of 50
    veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Two things:

    How long are the runs from the splitter? [guesses would be fine]

    I see you didn't go for the "extra credit" homework, where the filter would be moved to the LNB.
    This configuration changed my green/yellow status a lot and would be more representative of how the final product gets used, since the filter will be part of the SWM in a newer release.
     
  5. Aug 2, 2009 #5 of 50
    hdtvfan0001

    hdtvfan0001 Well-Known Member

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    See responses highlighted above.
     
  6. Aug 2, 2009 #6 of 50
    veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    So, you only have one short run. [which may be better than all short runs]

    SWM8 output is as close as you can get for the filter [as when it gets included in the SWM].
     
  7. Aug 2, 2009 #7 of 50
    hdtvfan0001

    hdtvfan0001 Well-Known Member

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    YES and YES.

    I also responded to your other question in the "One thing I noticed about DECA" thread....
     
  8. Aug 2, 2009 #8 of 50
    jasonki32

    jasonki32 Godfather

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    My longest run from the splitter is approx. 20 ft and all of mine are green. They werent all green until I moved the splitter from the swm to the splitter.
     
  9. Aug 2, 2009 #9 of 50
    Sixto

    Sixto Well-Known Member

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    All of my DECAs are usually GREEN. All cables are homerun to central location, ~10feet (HR20), ~40feet (H21), ~50feet (HR21), ~50feet (network DECA)
     
  10. Davenlr

    Davenlr Geek til I die

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    -(Two things:

    How long are the runs from the splitter? [guesses would be fine] -)
    LNB to splitter - 50' RG6QS
    Splitter to receiver:
    Two RG6 at 25'
    One RG59 at 50'

    -) I see you didn't go for the "extra credit" homework, where the filter would be moved to the LNB.
    This configuration changed my green/yellow status a lot and would be more representative of how the final product gets used, since the filter will be part of the SWM in a newer release. -)

    Couldnt, that would have put the connections outside in the rain, and we have had a monsoon this summer. didnt want to chance water. I could do it temporarily on a sunny day if anyone needs me to.
     
  11. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    I thought about that too, before I installed it.
    I mounted it on the LNB and fed it down the arm [inside], so it's "fairly protected" from the elements.
     
  12. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    I'm guessing this was the filter that was moved from the SWM to the first splitter.
    Since I started at the splitter and moved to the SWM [LNB] my green/yellow acted much like yours, more green with the filter at the splitter than [now] at the LNB.
     
  13. jasonki32

    jasonki32 Godfather

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    Yes you are correct. I guess I wasn't paying attention.:lol:
     
  14. dettxw

    dettxw MRVing

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    I'll guesstimate that the cable to the BR HR20-700 is 40', the H21-200 cable is 30', and the cable to the splitter before the HR22-100 & internet connection DECA (just after the SWM PI) is 50'.
    All green, only ever saw a couple of yellow flashes other than initial setup.
    The filter is immediately between the 4-way splitter and the SWM8 which are inches apart.

    No problems whatsoever to report.
     
  15. RunnerFL

    RunnerFL Well-Known Member

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    My longest coax run to a DECA is 3' and I'm all orange today.

    Could be green later tonight or tomorrow, I never know. :lol:
     
  16. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    "So far"
    it looks like long coax runs mean green C.Links much more than "all short" runs, and shortening the run to the filter also helps.
    In a way, these seem to be contradictory, but this is what makes RF "interesting" for some and "FM" for others. :lol:

    Filter --long run--splitter--short run --DECA = mostly yellow
    -----------filter-splitter--short run --DECA = mostly green

    Filter--short run --splitter-- long run --DECA = green [is this true?]
    ------------filter--splitter-- long run --DECA = green

    I'm wanting to think on this some more, "but":
    Filters & splitters are coils & cap, which have a reactive load.
    Coax is a resistive load.
    A Filter on a splitter can be looked at "as one", since they're all made up of the same things and could easily be in the same package.
    Resistive loading is what amps "like" [one in each DECA]. For those with a SWM8, remember the 15' min between the SWM8 & PI? [same thing].

    I need to ponder some more :)
     
  17. hdtvfan0001

    hdtvfan0001 Well-Known Member

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    I have nothing on my entire network coax runs except Skywalker splitters and the one splitter DirecTV supplied for the DECA cloud (at the HR20-700).

    For weeks now, since i found a loose connection and snugged it up, I am always all green everywhere.

    Wondering if anyone with yellow/orange in their regular results has switches or hubs, which perhaps may impact how the DEC LEDs "behave"...?
     
  18. dave29

    dave29 New Member

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    Mine is anywhere from 40-120'. All green.
     
  19. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    There isn't one "loose" connector in my system.
    My switch comes off the router to my PCs.
    C.Link LEDs are completly related to coax/RF.
     
  20. hdtvfan0001

    hdtvfan0001 Well-Known Member

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    Just wondering if there is any correlation to those with/without a switch (or hub) to the results in LED colors...

    I know that at least 3 of us have no switches or hubs in our setups, and we have all Green C.Link LEDs....which is what prompted the theory...not sure about those who report the Yellow/Orange....
     

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