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Use the Sun to Site New Satellite Dish

Discussion in 'DIRECTV Installation/MDU Discussion' started by litzdog911, Sep 3, 2006.

  1. Oct 12, 2007 #81 of 131
    golf4dj

    golf4dj Cool Member

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    Oct 6, 2007
    Anyway, I took a picture (see attached). Definately have some tree limbs in the way of sat 119. It is probably not quite as bad as the calculator says because the sun is actually 2 degrees lower than the sat. But I definately have some trees in the way.

    That branch is really high, I hope I can get to it. Also, you can see that my window is pretty small, I just hope I don't have issues with Sat 99 (I couldn't be home today to check it at the proper time).

    Just thought I would share.
     

    Attached Files:

  2. Oct 12, 2007 #82 of 131
    jimrobinette

    jimrobinette AllStar

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    Aug 31, 2007
    If that were the exact position of the sun (az angle) I would bet you could get a signal. Granted, the tree will block some of the signal, I bet if you can see the sun, you can get some signal. I am always amazed at how dishes are mounted that a signal can still get to the dish.

    Jim

     
  3. Oct 12, 2007 #83 of 131
    litzdog911

    litzdog911 Well-Known Member

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    Mill Creek, WA
    Especially in the winter :)

    Seriously, tree leaves can cause total blockage of the signal, especially when they're wet. And when it's windy the signal will jump like crazy.
     
  4. Oct 12, 2007 #84 of 131
    golf4dj

    golf4dj Cool Member

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    Oct 6, 2007
    Yea, I am getting signal, however I think that the tree limb is in the way as I am only registering in the low 60s on that sat (119) and when it rains just a little I get total signal loss while the other sats do just fine.

    I don't have many options to move the dish so I have to figure out how to get that limb down. I am concerned that when D comes to install the new slim line that he may saw I have no LOS and refuse to install.
     
  5. Oct 13, 2007 #85 of 131
    248 F1

    248 F1 Legend

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    Sep 22, 2007
    Where were you in relation to your existing dish when you took the photo?

    I agree with jimrobinette, you'd be surprised how much signal will slip past those leaves. Can you go higher with the mast?
     
  6. Oct 13, 2007 #86 of 131
    inflames72

    inflames72 Cool Member

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    Oct 11, 2007
    ok, so is the application still good, cause i have dtv coming monday, and according to that site, it says at 4pm on oct 14th, or have i passed the premium days?
     
  7. Oct 14, 2007 #87 of 131
    litzdog911

    litzdog911 Well-Known Member

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    Mill Creek, WA
    It's still good. The sun is ~1-deg below the actual satellite locations now, but should still be close enough for siting your dish.
     
  8. Oct 16, 2007 #88 of 131
    golf4dj

    golf4dj Cool Member

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    Oct 6, 2007
    Picture was taken right next to the dish with camera resting on it. BTW - when I took the photo I was receiving signals on 119 mostly in the 50s with some 60s. No issues with picture quality. However, the least amount of rain caused issues.

    Since I took the picture I rented a 40 ft ladder and lopped off the limb that was blocking the sun in my prior picture. I now have mid to high 90s across the board on 119. Scheduled for new slimline install tomorrow. I should have no issues with the install as long as the installer is willing to get on the roof.
     
  9. Oct 16, 2007 #89 of 131
    jimrobinette

    jimrobinette AllStar

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    Aug 31, 2007
    Let us know how the slimline install goes!

     
  10. Oct 16, 2007 #90 of 131
    HIPAR

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    May 15, 2005
    It's best to have the beam clear the nearest obstacle by a few feet. I determined that with a web based Fresnel zone calculator.

    --- CHAS
     
  11. Oct 17, 2007 #91 of 131
    islander66

    islander66 AllStar

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    Oct 16, 2007
    Don't know if this has been mentioned, but the 5NLB doesn't point directly at 110.

    I was concerned about this and the second installer said the 110 was right at the sun (this was on Oct. 11th.) I even looked through his compass.
     
  12. Oct 17, 2007 #92 of 131
    litzdog911

    litzdog911 Well-Known Member

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    Mill Creek, WA
    Correct. The 5-LNB is aimed at 101-deg W, unlike the 3-LNB dish that's aimed at 110-deg W. None of that really matters, though, unless you have clear line-of-site from the dish location to all 5 of DirecTV's main satellites at 99, 101, 103, 110 and 119-deg W. And some folks also need to "see" 95-deg W (International channels) or 72.5-deg W (for some city's local channels).
     
  13. Oct 18, 2007 #93 of 131
    SteveInNC

    SteveInNC AllStar

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    Oct 8, 2007
    I just wanted to say "thanks" to the OP. I found this thread the day before the calculator showed that the sun would be in position for the LOS to the DTV birds from my house (at various times throughout the day). It also happened to be a day that I was home for vacation :) I had had problems seeing a Dish bird from my previous mount point due to a tree. Expecting similar problems with DTV, the above information allowed me to find a different point in my yard that I can (theoretically) see the DTV birds. I verified the general information using the DishPointer site too. The acid test is in about five hours when the installer shows up...
     
  14. Oct 18, 2007 #94 of 131
    litzdog911

    litzdog911 Well-Known Member

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    You're welcome!
     
  15. Oct 18, 2007 #95 of 131
    SteveInNC

    SteveInNC AllStar

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    Oct 8, 2007
    As it turns out, this actually saved my install :D. I had used the sun position from Oct 9 to sight the birds for my location. I found one or two spots in my front yard (groan) that appeared to see the appropriate spots in the sky. I have big oak trees to the west in my and my neighbors' yards. A roof mount was not an option.

    The installer came out and I mentioned that I had used the the above technique to find an ideal spot, but I think the technicalities of orbital mechanics were lost on him. He used an inclinometer and picked another place in the yard, near where I had originally had a dish (and a Dish), but had run into LOS problems. He's the expert, and had the appropriate tool, so I let him use his spot.

    After all of the aiming, wiring, et al, we got everything but 119 - no signal. Big trees were just along the edge of that LOS. I reiterated that I had seen good LOS from a particular spot. He countered that there was a big tree in the arc of the azimuths to the birds from that spot, but I pointed out that the rays cast towards the specific orbital positions were clear LOS (I didn't describe it that way though, given the audience :) ). He called his boss and asked if the tree wouldn't be a problem. The boss said that it would. I told him I'd make it worth his while to try one more time (post hole, concrete et al). We rerouted the cables, which hadn't been buried yet, and he reset the dish at my location. After aiming, we had all of the birds. "Well, you taught us something today. What was that website?" I spotted him forty bucks.

    I question the signal strength on some specific transponders, but in looking around here, it appears that some are naturally low/null in any case. My video signal has been fine on every channel I've tried, both standard and HD. This thread gave me the background to stick to my guns, and I got a successful install as a result. Now let's hope it really sticks. Thanks again.

    As an aside, where I live has been under an extreme drought for most of the summer. It's been weeks since we've had measurable rain. When the installer showed up at 10:00, it began to rain, and continued sprinkling for the whole time that we were doing the install. As soon as we were done, the rain stopped...
     
  16. Oct 21, 2007 #96 of 131
    rwbuck

    rwbuck Mentor

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    Today I used this tool to check my line of sight. I live on the north side of a ridge with many tall trees. Many years ago I was a beta tester for starband and I was able to pick it up (along with the sat tv). I had full sun on 99, 101, 103, and 119. 110 was partially blocked by the top of a large oak tree. 99, 101, and 103 were on one side of the tree and 119 was on the other side. Can someone please educate me on how these birds work? Do I need to be able to see everyone of them? As always, I appreciate the help fom the members of this. The knowledge here is amazing!
     
  17. Oct 21, 2007 #97 of 131
    litzdog911

    litzdog911 Well-Known Member

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    Mill Creek, WA
    If 110-deg W was only partially blocked, you might still be OK. Especially since the sun is now actually a couple of degrees lower than the actual satellite positions. This satellite beams a few of the nationwide HD channels, including HBO-East, Showtime East, Universal HD, TNT-HD, ESPN-HD, and HDNet Movies.

    You can find out what channels are beamed from each satellite here ....
    http://www.lyngsat.com/packages/america.html

    Note that your DirecTV installer might balk at installing without a clear line-of-sight to all 5 satellites.
     
  18. Feb 12, 2008 #98 of 131
    sooner13

    sooner13 New Member

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    Feb 12, 2008
    Hi, I have a 3 lnb dish running a SD DVR. If I want to put a HD DVR on this can I use a 2 lnb dish, as a second dish, to get the 2 new satellites? I live in Oklahoma. If I can do this what would be the settings for the second dish. Thanks.
     
  19. Feb 12, 2008 #99 of 131
    jwd45244

    jwd45244 Hall Of Fame

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    Aug 18, 2006
    You can't
     
  20. sooner13

    sooner13 New Member

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    Feb 12, 2008
    So, I have to use a Slim line 5 lnb?
     

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