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Trees and 99c low signal

Discussion in 'DIRECTV Installation/MDU Discussion' started by bruceko, Jun 30, 2013.

  1. bruceko

    bruceko Mentor

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    Dec 14, 2006
    I am getiing very low signal on 99c. Most likely because of tree branchs 50' up on a neighbors tree.
    I signal on everything else seems to be good or very good. Is 99c lower that the other Sats? I know branches are part of the problem because the 99c strength goes up when it rains
    Channels 206 espn 237 Bravo and a few others are the channels I am loosing.
    In the past the 99c strengths were in the 40's and very rarely got a 771 message.
    Been a subscriber since the beginning but not really in the mood to spend $500 to trim the neighbors branches.
    This spring Diirect came out to align the dish and when he was done the signal on 99c was lower than before he touched it.
    99c 20 to 36
    99s 69 to 71
    101 88 to 97
    103s 59 to 92
    103ca79 to 86
    103cb 84 to 980
     
  2. texasbrit

    texasbrit DIRECTV A-Team

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    Aug 9, 2006
    Your 103ca signals are lower than they should be also.
    What's your zip code? then we can tell you which satellite is the lowest in the sky for you.n
     
  3. bruceko

    bruceko Mentor

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    Dec 14, 2006
    98036 Lynnwood, wa
    Do you know which transponder 206 espn and 237 bravo are on?
     
  4. HoTat2

    HoTat2 Hall Of Fame

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    From the latest tp. maps, ESPN HD is on tp. 13 of 99c

    And BRAVO HD is on tp. 7 of 99c as well. So it looks like those trees are your problem unfortunately as 99c is the lowest satellite from your location.
     
  5. bruceko

    bruceko Mentor

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    Dec 14, 2006
    Thanks
    That is what I thought.
     
  6. bruceko

    bruceko Mentor

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    Dec 14, 2006
    Now that I look at it all of the odd transponders come up as a 0 on 99C
    Could restating the system help? Or could I have a bad coax between the dish and SWM-16?
     
  7. peds48

    peds48 DIRECTV A-Team DBSTalk Club

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    NY
    Now that I look at it all of the odd transponders come up as a 0 on 99C
    Could restating the system help? Or could I have a bad coax between the dish and SWM-16?


    Is is happening on ALL receivers? If so, then you def have a bad cable/connector feeding the SWM16 switch, although dish alignment is not dismissed
     
  8. HoTat2

    HoTat2 Hall Of Fame

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    Yes, if its on all receivers;

    Specifically check the cable feeding the 13v 99/101 input to the SWiM-16
     
  9. carl6

    carl6 Moderator DBSTalk Club

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    Nov 15, 2005
    Seattle, WA
    While 99 is the lowest, it is only marginally lower than 101 or 103. You can barely see the difference, while 110 and 119 are quite noticeably higher. It is possible your neighbors branches are just enough to effect 99 and not 101, but if that is the case it will not be long at all before 101 signals will be impacted. I live just south of you in the north end of Seattle, and have spotted the positions relative to each other from my house and there is really very little difference between 99 and 101.

    However, if it is only the odd transponders and not all, even and odd, that really points to a cable or connector problem as opposed to an alignment or line of sight problem. You indicate an SWM16 so I would start by swapping the coax from the dish to the SWM16. 13V no tone and 13V tone, 18V no tone and 18V tone. Check your symptoms and see if your zero transponders move from odd to even, or to another satellite (or perhaps get fixed).
     
  10. bruceko

    bruceko Mentor

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    Dec 14, 2006
    i got some time to switch the coax around.
    First I reversed the 2 coax for the 99/101. It made no difference. Still all 0 on the odd transponders for 99.
    Next I swapped the 99/101 with the 103 coax's. Still all zero on the odd transponders for 99 but the signnal strength did go up on the even trasponders by about 3 points. Two of the 4 cables going to the Lnb are newer solid copper core.
    Is the a threshhold where the signal just shows 0? Like under 20?.
    I currently have 6 tuners on (3dvr's) and power inserter on an 8 way splitter and 2 tuners (1 dvr) on a 4 way splitter.
    Can I eliminate the 4 way splitter and run one cable direct to a dvr?
    Ps it is happening on all recievers.
     
  11. carl6

    carl6 Moderator DBSTalk Club

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    Seattle, WA
    Yes, you can drop the 4-way splitter. The fewer splitters the better in general.

    The minor change in signal strength is most likely not associated with the swap of cables. That there was no "fix" of the zero readings narrows you down to 1) an LNB problem, 2) an SWM problem, 3) a line of sight problem. You've pretty well ruled out coax and connectors.

    As to a threshold, there probably is but I'm not sure what it would be.
     
  12. slice1900

    slice1900 Well-Known Member

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    Iowa
    Assuming you have some receivers/DVRs that are able to work on a legacy system, try connecting one of the coaxes from the dish directly to a receiver and reconfigure it for non-SWM. If you still see problems with low signal on 99c, you will have ruled out a problem with your SWM-16 and it'll either be LNB or trees.

    Given that you see much lower numbers on odd transponders it would point to an LNB problem as the most likely cause in my mind. I can't see any way trees could cause significantly lower signals just on odd transponders, but those who do installs for a living will have seen all sorts of issues and maybe there is a scenario where this can occur.

    You might try focusing in on one of the zero transponder readings in the signal meters screen and see if it stays steady at zero or occasionally jumps to a non-zero value. When I had problems with my LNB (affecting 103) I found when the problem was occurring (it was intermittent) the readings in the signal meters would jump all over the place, from 90 to 40 to 70 to 0 and so on. On the signal strength screen I wouldn't see this behavior because it updates so slowly.
     
  13. carl6

    carl6 Moderator DBSTalk Club

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    Seattle, WA
    Good suggestions from slice1900, agree completely.
     
  14. bruceko

    bruceko Mentor

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    Dec 14, 2006
    finally fixed the problem with 99c odd transponders.
    After swapping cable, running new solid copper cables including a 100' run through my crawl space I finally gave the dish arm a shake and the signal came back. It is a very solid mount. so I don't think it changed the alignment.
    Even transponder increased by about 15. the odd transponders went from 0 to 35 to 40.. Still not very good but everything works now.
    The odd transponder are still lower strength than the even transponder.
     
  15. slice1900

    slice1900 Well-Known Member

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    I suspect all the shaking did was make a bad solder joint inside the LNB get a slightly better contact, or something along those lines. The 35-40 numbers will give you signal, but even some clouds, let alone rain, may be enough to cut your signal on the channels using those transponders.

    I'd have Directv out to investigate, or replace the LNB if you want to do it yourself - they are pretty cheap.
     
  16. peds48

    peds48 DIRECTV A-Team DBSTalk Club

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    Not sure how "everything" works now. You are probably not tuned to channels coming from those transponders
     
  17. bruceko

    bruceko Mentor

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    Dec 14, 2006
    I have tested the channels that were problems 206 207 242 237. I don't remember the others.
    I down loaded the transponder channel list and tested them all
     
  18. peds48

    peds48 DIRECTV A-Team DBSTalk Club

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    Right but checking 4 channels does not mean "everything" is working....
     

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