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Long duration rain fade

Discussion in 'DIRECTV General Discussion' started by Weather88, Jun 21, 2013.

  1. Weather88

    Weather88 New Member

    13
    0
    Nov 14, 2012
    Halfmoon,...
    So I had my D* installed back in October, and I've noticed that we seem to be having a problem losing our service during storms, usually right before the storm gets here, during the storm, and a few minutes after, and then it comes back up. I found this template on this site, and I was hoping you all could tell me how my signals look. Any insight would be greatly appreciated!!

    My setup is 1 HR34 and 3 H25's with a Slimline 5 dish and SWM. It's a completely calm and clear night outside with not a cloud in the sky, so I figured it would be perfect to get the best signal readings. Also, I live just south of Albany, NY.


    Satellite transponders (32 total at 101º)
    [Most of your standard definition channels are beamed from 101ºW]
    1-8 96 96 95 97 95 100 96 100
    9-16 96 97 96 97 96 100 97 100
    17-24 96 100 96 95 97 100 97 100
    25-32 96 100 96 72 98 100 96 100

    Satellite transponders (3 total at 110º)
    [Not present with Slimline3 dish. No channels are currently beamed from this satellite]
    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)
    [Not present with Slimline 3 dish. Local SD channels for some cities, Spanish package]
    17-24 NA NA NA NA NA 96 100 96
    25-32 98 98 100 97 96 97 100 97

    Satellite transponders (16 total at 99º(s)) [or 99º(b)]
    [Local HD channels for some cities]
    1-8 69 0 69 0 0 0 NA NA
    9-16 NA NA NA NA NA NA 70 91
    17-24 82 87 92 95 95 91 68 63
    [Note: these can be very slow to appear]

    Satellite transponders (14 total at 99º©) [or 99º(a)]
    [National HD channels]
    1-8 86 80 83 80 87 80 83 80
    9-16 88 83 85 80 91 85 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 96 95 0 93 NA NA NA NA
    9-16 NA NA NA NA NA NA 95 72
    17-24 97 94 91 77 89 79 91 76
    [Note, these can be very slow to appear]

    Satellite transponders (16 total at 103º(ca))
    [National HD channels beamed from D12 satellite]
    1-8 NA NA NA NA NA NA NA NA
    9-16 95 77 91 79 91 80 86 80
    17-24 90 82 88 79 90 82 88 82

    Satellite transponders (14 total at 103º(cb)) [or 103º(b)]
    [National HD channels beamed from D10 satellite]
    1-8 93 80 87 78 89 81 87 80
    9-16 89 82 88 80 89 81 NA NA
    17-24 NA NA NA NA NA NA NA NA

    Satellite transponders (9 total at SWM)
    [You'll only see this if you have a Single Wire Multiswitch (SWM) dish]
    1-8 100 0 0 0 100 100 100 100
    9-16 x NA NA NA NA NA NA NA
     
  2. litzdog911

    litzdog911 DIRECTV A-Team DBSTalk Club

    12,171
    56
    Jun 23, 2004
    Mill Creek, WA
    Those signal readings are pretty good. Check them again the next time you have "rain fade" and post them back here. Your problem might actually be related to moisture getting inside a coax cable connector, or perhaps a defective dish LNB.
     
  3. texasbrit

    texasbrit DIRECTV A-Team

    5,053
    84
    Aug 9, 2006
    I would disagree with litzdog (sorry!). You have several signals on 99c, 103ca and 103cb down in the 70s or low 80s, and those are way below DirecTv's install verification (quality control) levels. All the signals on 99c, 103ca and 103cb should be in the high 80s at least, preferably low to mid 90s. A dish realignment should get your signals into this range. This should give you a chance of reducing the outage time due to weather.
     
  4. peds48

    peds48 DIRECTV A-Team DBSTalk Club

    18,363
    906
    Jan 10, 2008
    NY
    I dont think is a dish alignment but rather a bad LNB. there are several TP on the high 90s on the 103 and 99 sats, A dish alignment would affect all transponders on those satellites as well
     
  5. harsh

    harsh Beware the Attack Basset

    21,192
    182
    Jun 14, 2003
    Salem, OR
    The alternating high and low signals on 99 and 103 suggest to me that it is an alignment issue.
     
  6. jimmie57

    jimmie57 Hall Of Fame

    6,365
    290
    Jun 26, 2010
    Texas City, TX
    Since both the 99 and 103 are very similar in readings wouldn't this suggest a very slight elevation adjustment to increase the readings ?
     
  7. sstv

    sstv Legend

    256
    0
    Jul 30, 2006
    DALLAS TX
    Hi All
    I had a simillar problem. All my sat readings were very good but any kind of rain would knock out my viewing. The dish had been realigned because of a new LNB and was on the money. I noticed that the tech had split and spliced the coax near the dish so he could get his meter in line so I got my ladder to take a look at the splice. It looked OK but I took a good grade of electrical tape and wrapped the splice. No more rain problems so I would say any coax connection that is exposed to the weather is suspect. Tape is cheap and you might be surprised.

    SSTV
     
  8. peds48

    peds48 DIRECTV A-Team DBSTalk Club

    18,363
    906
    Jan 10, 2008
    NY
    Hi All
    I had a simillar problem. All my sat readings were very good but any kind of rain would knock out my viewing. The dish had been realigned because of a new LNB and was on the money. I noticed that the tech had split and spliced the coax near the dish so he could get his meter in line so I got my ladder to take a look at the splice. It looked OK but I took a good grade of electrical tape and wrapped the splice. No more rain problems so I would say any coax connection that is exposed to the weather is suspect. Tape is cheap and you might be surprised.

    SSTV


    I will never recommend using electrical tape, because water WILL still get in but will be harder to evaporate
     
  9. RunnerFL

    RunnerFL DIRECTV A-Team

    17,040
    311
    Jan 4, 2006
    Weatherproof caulk is much better than electrical tape.
     
  10. texasbrit

    texasbrit DIRECTV A-Team

    5,053
    84
    Aug 9, 2006
    Yes, we established early in the deployment of the slimline dishes that some alignment problems would often produce a pattern where odd transponders were lower than evens, or vice versa.
     
  11. NR4P

    NR4P Dad

    6,264
    253
    Jan 15, 2007
    Sunny Florida
    The OP wrote the rain fade starts just before the storm gets there. So if the dish isn't wet yet, then its a LOS issue. Likely that the storm is between the dish and SAT.

    I agree with others. Get those 99c and 103c readings up by at least 10 points. Won't stop the fade but will reduce the lack of signal time.
     
  12. texasbrit

    texasbrit DIRECTV A-Team

    5,053
    84
    Aug 9, 2006
    The rain fade will be worst when the storm center is between the dish and the satellites. Rain at the dish itself isn't the major problem, unless you have a faulty connector or an LNB with a cracked cover.
     
  13. ThomasM

    ThomasM RF Engineer

    4,317
    10
    Jul 20, 2007
    Milwaukee, WI
    I don't know anything about signal readings on the HD sats but his Ku band readings look excellent. After 13 years with DirecTV, I know exactly how rain fade works. Sometimes it's very weird because the sun could be shining and the channels drop out. A quick visit to an internet weather radar site confirms what is going on. A big thunderstorm to the Southwest right in the path from the dish to the satellites is the reason!

    Anyway, rain fade can be expected in heavy downpour storms. But after suffering with cable for 9 years it's a joke compared to all of their outages. Granted, cable doesn't usually suffer from rain fade but when they have an outage it lasts for hours not minutes like a rain fade. Usually when it's storming so hard that the signal drops below the threshold I generally have my DirecTV receivers unplugged from the wall as well as my TV sets (like I did this morning when a big thunderstorm came through).
     
  14. goinsleeper

    goinsleeper Godfather

    673
    17
    May 22, 2012
    Or stepping outside and taking a look towards the southwest...
     
  15. Weather88

    Weather88 New Member

    13
    0
    Nov 14, 2012
    Halfmoon,...
    So far this summer, my satellite has been out before I even knew a storm was coming a few different times. I looked right at the radar and sure enough, a big t-storm was coming right from the SW.
     
  16. TDK1044

    TDK1044 Godfather

    568
    27
    Apr 8, 2010
    Losing the signal during a storm is really to be expected. The heavy rain clouds associated with severe storms are going to result in signal loss. I find that with normal or heavy rain, my signal is fine, but if a storm passes over head, I will lose signal until it has passed. If I total up the loss of signal in terms of time though, it's less than an hour per year......nearer 40 minutes actually.
     
  17. Weather88

    Weather88 New Member

    13
    0
    Nov 14, 2012
    Halfmoon,...
    I've already passed the 40 minute mark awhile ago. For me, it can sometimes be 40 minutes per storm.
     
  18. jimmie57

    jimmie57 Hall Of Fame

    6,365
    290
    Jun 26, 2010
    Texas City, TX
    I think you should tweak / peak out your numbers or have it done by DTV.
    I am in the south also and we get a lot of stuff that comes in from the Gulf and out of the Northwest. My times are usually about 5 to 10 minutes. Once in a great while mine will be 20 minutes with a slow moving storm.
    My 99c numbers are 96, 95, 95, 94, 95, 94, 95, 94
    95, 95, 95, 94,96, 95, na, na

    My 103ca numbers are 88, 95, 92, 92, 89, 89, 95, 95
    90, 94, 95, 95, 91, 93, 95, 95
    My 103cb is basically the same as 103ca
     
  19. HoTat2

    HoTat2 Hall Of Fame

    7,081
    165
    Nov 16, 2005
    Los...
    Well I can't speak for the minimum IV acceptance signal levels for TS' locale texasbrit;

    But here in the LA market my levels for 103ca have always been in the mid-70s with an occasional transponder or two making it into the low 80s at times. And 99c and 103cb always span the 80s with almost no transponder ever in the 90s.

    Yet every time I've had a service call with an IV retest on the WO, it always passes.

    Go figure ... :confused:

    Guess its because we don't get a lot of storms here in So. Cal. as to why those so-so Ka band numbers pass IV. :)
     
  20. ThomasM

    ThomasM RF Engineer

    4,317
    10
    Jul 20, 2007
    Milwaukee, WI
    If you lose the signal for 40 minutes during ONE STORM and the National Weather Service isn't predicting Flash Flooding for your area your dish needs to be re-aimed or checked for a problem. If the signal is just barely making it with no storm, any rain at all will cause your picture to go out.
     

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