1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Help with Mpeg HD

Discussion in 'DIRECTV General Discussion' started by eziggy3, Jan 19, 2009.

  1. eziggy3

    eziggy3 Cool Member

    15
    0
    Jan 11, 2007
    Appreciate any input on this. Since the new Mpeg 4 HD channels were introduced I have been having issues with them dropping of for no apparent reason. They will go out for 30 min and then back on for 15 min. Then off for 10…and so on.Sometimes off an on all day. Very annoying. I have had numerous techs out, but since this is an intermittent problem they can only guess at the cause if the condition does not present itself when they are here.

    Today the skis are clear and there is no wind. The HD channels just went out again and back on. I took the images below at 10:36 when they were on.

    [​IMG]
    [​IMG]

    Back out again at 10:51
    [​IMG]
    [​IMG]
    [​IMG]

    And at 10:57 they start coming back right before my eyes.
    [​IMG]
     
  2. jodyguercio

    jodyguercio Active Member

    2,793
    0
    Aug 16, 2007
    Can you describe your setup.

    Any multi-switches? Cabling type? SWM modules?
     
  3. eziggy3

    eziggy3 Cool Member

    15
    0
    Jan 11, 2007
    I have the big 5 LNB dish running into a Zinwell multi switch (replaced twice in the past six months because the techs do not know what else to do). I have three HD DVRs, one HD receiver and one SD receiver. The SD receiver is fine, but when the HD signal goes down it goes down on all of them. Standard cables that they built into the house. Don't know what a SWM module is.
     
  4. harsh

    harsh Beware the Attack Basset

    21,192
    183
    Jun 14, 2003
    Salem, OR
    It looks like your elevation is slightly off. I wouldn't have expected the readings to go to zero though.

    [strike]Do the signals on 101W stay steady through all of this or do they go down too?[/strike]

    What happens on 99(c) when 103(c) dies?
     
  5. eziggy3

    eziggy3 Cool Member

    15
    0
    Jan 11, 2007
    101 remains the same.
     
  6. harsh

    harsh Beware the Attack Basset

    21,192
    183
    Jun 14, 2003
    Salem, OR
    If all the HD receivers have the same symptoms, I think we can rule out the BBCs. Since they have gone through three multiswitches, I'm betting that the problem lies in the LNBF assembly or the cabling between it and the multiswitch.
     
  7. BattleZone

    BattleZone Hall Of Fame

    8,969
    1
    Nov 13, 2007
    You have a bad LNB (most likely) or a bad multiswitch. You need a service call.
     
  8. eziggy3

    eziggy3 Cool Member

    15
    0
    Jan 11, 2007
    Based on today's data it looks like 99(c) remains the same.
     
  9. davring

    davring Hall Of Fame

    6,417
    1
    Jan 13, 2007
    LNB's, as many will agree, can be intermittent caused be either high or low temperatures.
     
  10. Bobcuch

    Bobcuch Cool Member

    20
    0
    Apr 15, 2007
    I have had the same problem and finally traced it to the wind-chill temperature. When the wind-chill temp is 10 or lower we lose the mpeg channels. When the wind-chill temp is above 10 signal stregnth is great (90's). Not sure why but, it took me a month of getting angry to figure that out! Now my question is why?
     
  11. harsh

    harsh Beware the Attack Basset

    21,192
    183
    Jun 14, 2003
    Salem, OR
    More important is the actual temperature at the LNB. There's no evaporation process going on with an LNB assembly so wind chill doesn't apply.

    Over in the subzero thread I posted a link to the NOAA wind chill site that explains what wind chill is and more importantly, what it isn't.
     
  12. Mike Bertelson

    Mike Bertelson 6EQUJ5 WOW! Staff Member Super Moderator DBSTalk Club

    14,040
    94
    Jan 24, 2007
    I have to agree with harsh here.....:eek:

    Wind chill only effects objects with moisture. The wind evaporates the moisture causing the temperature to drop below ambient.

    This can be an important distinction when troubleshooting.

    The temperature of inanimate objects is not affected by the wind.

    To eziggy3, are there particular times of the day that this is a problem?

    I just helped a friend who had a similar problem. He would intermittently loose HD channels while SD seemed unaffected.

    It turned out he had a run of cable in the wall that was RG59. All the wire that was easily seen was RG6 but when we saw the RG59 we replaced it and, so far, has corrected his problem.

    Using this might be easier then uploading pictures each time. Try

    Code:
     Satellite transponders (32 total at 101°)
    1-8   #   #   #   #   #   #   #   #
    9-16  #   #   #   #   #   #   #   #
    17-24 #   #   #   #   #   #   #   #
    25-32 #   #   #   #   #   #   #   #
    
    Satellite transponders (3 total at 110°)
    1-8  N/A N/A N/A N/A N/A N/A N/A #
    9-16 N/A #   N/A #   N/A N/A N/A N/A
    
    Satellite transponders (11 total at 119°)
    17-24 N/A N/A N/A N/A N/A #   #   #
    25-32 #   #   #   #   #   #   #   #
    
    Satellite transponders (16 total at 99°(c))
    1-8   #   #   #   #   #   #   #   # 
    9-16  #   #   #   #   #   #   N/A N/A
    17-24 N/A N/A N/A N/A N/A N/A N/A N/A
    25-32 N/A N/A N/A N/A N/A N/A N/A N/A
    
    Satellite transponders (16 total at 103°(s))
    1-8   #   #   #   #   #   #   N/A N/A
    9-16  N/A N/A N/A N/A N/A N/A #   #  
    17-24 #   #   #   #   #   #   #   #
    
    Satellite transponders (16 total at 103°(c))
    1-8   #   #   #   #   #   #   #   #
    9-16  #   #   #   #   #   #   N/A N/A
    17-24 N/A N/A N/A N/A N/A N/A N/A N/A
    25-32 N/A N/A N/A N/A N/A N/A N/A N/A
    Mike
     
  13. harsh

    harsh Beware the Attack Basset

    21,192
    183
    Jun 14, 2003
    Salem, OR
    Another case of choking out the voltage to the LNB with substandard wire and multiple couplers.
     

Share This Page