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Searching for SAT on certain HD channels on all HD units

Discussion in 'DIRECTV HD DVR/Receiver Discussion' started by CMOS, Oct 2, 2011.

  1. Oct 2, 2011 #1 of 12
    CMOS

    CMOS New Member

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    Oct 2, 2011
    Hi all,

    A couple of weeks ago, I started to notice that I was getting the "Searching for signal on SAT 2" message on my HR21. I assumed it was a weather issue because other HD channels came in fine. It's been two weeks later and I'm still getting that message on all 3 of my HD units and only on certain channels. Like 501HD comes in fine but 502HD is always searching for signal. 248HD comes in fine but 299HD is always searching for signal. I've checked the alignment and it looks fine. I ran a system test and it came up with 42-983.

    Signal strength as so :


    Satellite transponders (32 total at 101º)
    1-8 97 96 95 100 94 100 96 100
    9-16 95 97 95 100 95 100 95 99
    17-24 95 100 96 100 97 100 97 100
    25-32 97 99 97 100 98 100 97 100

    Satellite transponders (3 total at 110º)
    1-8 NA NA NA NA NA NA NA 95
    9-16 NA 96 NA 97 NA NA NA NA


    Satellite transponders (11 total at 119º)
    17-24 NA NA NA NA NA 95 97 91
    25-32 96 91 96 87 97 91 94 95

    Satellite transponders (14 total at 99º(c or a))
    1-8 91 91 86 88 89 86 85 86
    9-16 88 86 86 86 94 88 NA NA

    Satellite transponders (6 total at 99º(s or b))
    1-8 21 0 0 0 0 0 NA NA
    9-16 NA NA NA NA NA NA 98 95
    17-24 97 97 0 97 69 57 97 96

    Satellite transponders (16 total at 103º(s or b))
    1-8 0 0 0 76 0 0 NA NA
    9-16 NA NA NA NA NA NA 0 0
    17-24 0 95 0 0 0 24 0 80

    Satellite transponders (16 total at 103º(ca))
    1-8 NA NA NA NA NA NA NA NA
    9-16 0 80 0 82 0 79 0 82
    17-24 0 80 0 82 0 80 0 80

    Satellite transponders (16 total at 103º(cb))
    1-8 0 89 0 82 0 86 0 82
    9-16 0 83 0 83 0 82 0 NA
    17-24 NA NA NA NA NA NA NA NA
    25-32 NA NA NA NA NA NA NA NA


    Any kind soul have any idea why this might be happening?

    Thanks.
     
  2. Oct 2, 2011 #2 of 12
    RobertE

    RobertE New Member

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    You have lost the odd transponders (13v) on the 103 as indicated by the every other zero. 110/119 appear to be unaffected. So, that points towards the LNB failing, while the lines, connections and switch being ok. Time for a service call.
     
  3. Oct 2, 2011 #3 of 12
    RoyGBiv

    RoyGBiv Icon

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    Jul 24, 2007
    Actually, it may be a cable problem. The OP doesn't mention what type of LNB he has and whether he has a SWM or multiswitch system. I had this same issue shortly after I switched to the slimline 5 dish. I had a Zinwell multiswitch with 3 DVRs and assumed when I had this problem a few weeks after the installation that it must be either the switch or the LNB. When I started disconnecting cables to diagnose the problem by taking the multiswitch out of the equation, I found that one of the four cables at the grounding block had corroded, and replacing that block and F connector solved the problem.

    SMK
     
  4. Oct 2, 2011 #4 of 12
    veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Dec 9, 2006
    While "you're not wrong", it would be a strange case because:
    DC voltage would need to be passing [since 119 is good].
    The RF would have to pass 950-1450 MHz [again for 119], while not passing 250-750 MHz & 1650-2150 MHz.
    Stranger things have happened, but just not that often. ;)

    If I were to put a bet on this, RobertE would be where my money would go.
     
  5. Oct 2, 2011 #5 of 12
    CMOS

    CMOS New Member

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    Oct 2, 2011
    Thanks for the replies so far, guys.

    I have a Slimline 5 with a Zimwell Multiswitch.

    Interestingly enough, it now appears that the unit in the living room is getting no HD channels(except local, system test report 42-089) while the other units are still receiving some HD channels but searching for signal on others.

    It's a pole mount, if that matters any.
     
  6. Oct 2, 2011 #6 of 12
    RobertE

    RobertE New Member

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    Not ruling out the cables/connectors/switch, but my prime suspect would be the LNB.
     
  7. Oct 2, 2011 #7 of 12
    veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    If you have a barrel or two, you can jumper across the Zinwell and see if running straight to the dish makes any difference.
     
  8. Oct 3, 2011 #8 of 12
    CMOS

    CMOS New Member

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    Oct 2, 2011
    Once the issue is resolved, should any transponders on any satellites show zero or should all show high numbers?
     
  9. Oct 3, 2011 #9 of 12
    RobertE

    RobertE New Member

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    Depending on where you are at, you will have some on 101 that will be 0. You will have numbers on all 99c and 103c(a)(b) transponders.
     
  10. CMOS

    CMOS New Member

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    Oct 2, 2011
    Even though these are spot beams? I read somewhere else that as spot beams that zeros should be expected?
     
  11. CCarncross

    CCarncross Hall Of Fame

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    Jackson
    The spot beams are on the (s) sats...there are a couple on the 101, as has been pointed out, and you shold have many on the 99 and 103 (s) sats...
     
  12. RobertE

    RobertE New Member

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    99c and 103c(a)(b) are the conus beams. 99/103(s) are the spot beams.

    You will have something on all the conus ones, some on the spots. The spots will be all over the place, most 0's a couple in the 90s and several anywhere inbetween.
     

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