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loss of HD channels...long cable run

Discussion in 'DIRECTV Installation/MDU Discussion' started by Freddy F, Aug 12, 2008.

  1. Freddy F

    Freddy F New Member

    3
    0
    Aug 12, 2008
    We have an AU9-S antenna feeding a new HR-21 receiver. At about sixty feet we get good signal on all transponders and receive all SD and HD channels. At about 220 feet we lose all HD channels and get an error 771, “searching for signal” message. SD channels seem to be fine. DirecTV had someone here to align the antenna, and so the problem appears to be between the 60 and 220 foot runs. Again all SD channels are fine, so any suggestions on how to boost the signals to receive the HD channels?

    Thanks.
     
  2. Mertzen

    Mertzen Hall Of Fame

    3,682
    0
    Dec 8, 2006
    Do you have only a single IRD? Also is the cable solid copper or copper clad steel.

    I did a 2 IRD install incl HD with SCC on 275' and things are fine so far.

    You could go for locker / amp.
     
  3. Freddy F

    Freddy F New Member

    3
    0
    Aug 12, 2008

    Two IRDs, one is SD. I now suspect signal strength is too low and antenna must be re-aligned.
     
  4. Mertzen

    Mertzen Hall Of Fame

    3,682
    0
    Dec 8, 2006
    Give us a set of signal strengths for the HD box.
     
  5. litzdog911

    litzdog911 Well-Known Member

    12,239
    69
    Jun 23, 2004
    Mill Creek, WA
    Please post back with your signal readings for each satellite's transponders (and both tuners if applicable). You'll find these readings under "Menu" -> "Setup" -> "System Setup" -> Satellite -> "View Signal Strength".

    Fill in your readings for each satellite and tuner using these examples. A properly aligned dish will show 80-90s on most of the relevant transponders (although some will be low or zero):


    Satellite transponders (32 total at 101º)
    [Most of your standard definition channels are beamed from 101ºW]
    1-8 # # # # # # # #
    9-16 # # # # # # # #
    17-24 # # # # # # # #
    25-32 # # # # # # # #

    Satellite transponders (3 total at 110º)
    [Several HD channels are beamed from 110ºW]
    1-8 NA NA NA NA NA NA NA #
    9-16 NA # NA # NA NA NA NA

    Satellite transponders (11 total at 119º)
    [A few HD channels, local SD channels, and Spanish package]
    17-24 NA NA NA NA NA # # #
    25-32 # # # # # # # #

    Satellite transponders (6 total at 99º(s)) [or 99º(b)]
    [Local HD channels for some cities]
    1-8 # # # # # # NA NA
    9-16 NA NA NA NA NA NA # #
    17-24 # # # # # # # #
    [Note: these can be very slow to appear]

    Satellite transponders (14 total at 99º(c)) [or 99º(a)]
    [New national HD channels]
    1-8 # # # # # # # #
    9-16 # # # # NA NA NA NA
    [Note, these can be very slow to appear]

    Satellite transponders (16 total at 103º(s)) [or 103º(a)]
    [Local HD channels for some cities]
    1-8 # # # # # # NA NA
    9-16 NA NA NA NA NA NA # #
    17-24 # # # # # # # #
    [Note, these can be very slow to appear]

    Satellite transponders (16 total at 103º(c)) [or 103º(b)]
    [Most national HD channels]
    1-8 # # # # # # # #
    9-16 # # # # # # NA NA
    17-24 # NA NA NA NA # NA NA
     
  6. Freddy F

    Freddy F New Member

    3
    0
    Aug 12, 2008


    Here are this mornings signal strength numbers for the HR21 box:

    Do you think the dish needs re-alignment? Or is the long cable run the problem?

    Thanks.

    101
    95 95 94 98 92 100 95 100
    91 95 93 99 90 100 91 100
    89 100 88 96 88 100 93 99
    91 98 94 71 94 98 91 99

    110
    n/a n/a n/a n/a n/a n/a n/a 95
    n/a 89 n/a 96 n/a n/a n/a n/a
    n/a n/a n/a n/a n/a n/a n/a n/a
    n/a n/a n/a n/a n/a n/a n/a n/a

    119
    n/a n/a n/a n/a n/a n/a n/a n/a
    n/a n/a n/a n/a n/a n/a n/a n/a
    n/a n/a n/a n/a n/a 53 47 51
    51 55 65 55 58 55 0 56

    99c
    0 0 0 0 0 0 0 0
    0 0 0 0 0 0 n/a n/a
    n/a n/a n/a n/a n/a n/a n/a n/a
    n/a n/a n/a n/a n/a n/a n/a n/a

    99s
    96 26 96 22 80 37 n/a n/a
    n/a n/a n/a n/a n/a n/a 0 0
    0 0 0 0 0 0 0 0
    n/a n/a n/a n/a n/a n/a n/a n/a

    103s
    65 0 0 0 53 0 n/a n/a
    n/a n/a n/a n/a n/a n/a 73 25
    0 64 75 58 0 0 86 78
    n/a n/a n/a n/a n/a n/a n/a n/a

    103c
    0 0 0 0 0 0 0 0
    0 0 0 0 0 0 n/a n/a
    0 n/a n/a n/a n/a n/a n/a n/a
    n/a n/a n/a n/a n/a n/a n/a n/a
     
  7. eakes

    eakes Godfather

    354
    2
    Sep 21, 2007
    Judging from the various transponder strengths, SD should be good and HD virtually non-existent.
    Yep, need alignment. Tilt is off (119 values should be similar to 101).

    Have the tech start from the beginning. Verify the mast is plumb and go from there, just like a new install as far as alignment is concerned.
     

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