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Experimental Small Slimline3 Dish

Discussion in 'DIRECTV Installation/MDU Discussion' started by Matt9876, Sep 16, 2008.

  1. J Blow

    J Blow Legend

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    Nov 2, 2008
    By the way, how do you do that thumbnail thing? Sorry for the big pics.

    I am starting to wonder if I shouldn't just slide it all the way down and drill new screw holes so the lnb sits in there flush....maybe it doesn't matter one way or the other.
     
  2. upsss

    upsss Cool Member

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    Apr 1, 2011
    That exactly what I did, but instead of notching a slot in the arm like you did, I simply filed down the tab completely. You can see it in my picture pretty clear. Mine worked perfectly and I never tried it with the LNB not mounted flush. You have to remember that this setup is a compromise so any little variation can be significant as far as optimizing the signal from all three satellites.
     
  3. J Blow

    J Blow Legend

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    Nov 2, 2008
    This is exactly why I asked as I think the movement between the two can make a big difference in reception.

    Now, your answer confuses me a little. First you say this is exactly what you did, which to me, meant that you used to original holes which wouldn't let the LNB slide down in the arm flush - but then go on to say you didn't try it flush. Does that mean you drilled new holes or your holes were already aligned where the LNB slid down flush? Maybe you didn't mean flush with the LNB and yours has the gap in there just like mine.

    Thanks.
     
  4. upsss

    upsss Cool Member

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    Apr 1, 2011
    Please read again my response to your question and see my picture at the top of this page. As you can see, I filed off the tab and drilled 2 new holes.
     
  5. J Blow

    J Blow Legend

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    Nov 2, 2008
    Excellent. Until I looked closer I couldn't tell the holes were redrilled and earlier in the thread the OP said he used the original holes.

    I think I'll do a little experiment on this now. I am going to leave the LNB where it is and see what sort of signal levels I get and then redrill the holes if necessary. I suspect I will have to do just that but we will see. In my case the holes will just be elongated as they are very close to alignment as it is now.
     
  6. J Blow

    J Blow Legend

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    Nov 2, 2008

    I understood the first time. You said you did EXACTLY what I did but come to find out, you didn't. That was the confusing part. If you did just what I did you would have used the original holes. I can see now you didn't but I also wasn't sure if our arms or LNBs maybe were slightly different and the holes lined up a little differently with the equipment being spaced the same. The key was drilling the holes. I wasn't sure it could be flush without drilling holes and I wasn't sure it couldn't be.

    At any rate, I bet I can make it work and thanks for your input.
     
  7. Matt9876

    Matt9876 Hall Of Fame

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    Oct 11, 2007
    BKEG and UPSSS Noticed you filed off the key on the SL3 LNB, Your modification makes the arm look much cleaner than notching out the metal arm to fit the key. :)

    The hole alignment may differ slightly with the different manufactured phase three dishes but once the screws go through the LNB you can snug the nut and bolts for a tight grip and proper alignment of the LNB.

    Re drilling the holes so the LNB is fully seated in the arm tube can increase Ka band signal strength on 99 and 103 by a couple of points.
     
  8. J Blow

    J Blow Legend

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    Nov 2, 2008
    My original plan was to actually file that ear off, too, but my drill was easier to locate than my dremel!

    I drilled a couple new holes and now it does rest in there flush - the way it was originally built to look. I'll run the signal test tomorrow.
     
  9. liquidctv

    liquidctv Legend

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    Oct 13, 2010
    >I drilled a couple new holes and now it does rest in there flush - the way it was originally built to look. I'll run the signal test tomorrow.

    How the LNB rests in the socket, should manifest itself on the meter. I have a lot of installs where the LNB is "loose", and as I wiggle it around, I get different results.

    If you are getting 70+, then you are in business. Rain fade is the issue here, as 85% down to 50% is a comfortable margin for rain.
     
  10. J Blow

    J Blow Legend

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    Nov 2, 2008
    I ran a signal test just to be sure my LNB worked. I actually set it up in the back of a pickup and didn't even level the mast very well as it moved all over. With very little configuration I got 80s on 101 and 70 on the other 2. I believe this is going to work like a champ. Thanks, all.
     
  11. May 4, 2011 #371 of 463
    J Blow

    J Blow Legend

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    Nov 2, 2008
    I finally got around to doing a little more permanent install with the Phase III. Oddly enough, I was never able to obtain any better signal than my quick run earlier. No matter what I did, the best signal level I got was about 80 on 101 and 70 on the other 2. I decided I would try the slimline dish to see the differences. The slimline, in the exact same location, got low 90s for 101, mid 80s for 103, and mid 70s for 99. Maybe with a little more configuration I can do better with the phase III but I was tired of messing with it.
     
  12. May 4, 2011 #372 of 463
    gomezma1

    gomezma1 Godfather

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    Mar 28, 2006
    Do you use the same elevation and azimuth for aligning a phase III dish to use the SL3? I cut notch on arm so lnb would sit flush. Never messed with anymore.
     
  13. Matt9876

    Matt9876 Hall Of Fame

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    Oct 11, 2007
    Yes the SL3 alignment numbers will get you very close but during the balancing stage of (99 & 103) the setup tilt number will vary 4 to 6 points away from the original setup tilt number. Elevation numbers can also vary a little during tweaking/peaking of Ka signal numbers stage.
     
  14. GoWulfpack919

    GoWulfpack919 Cool Member

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    Nov 1, 2010
    I don't know if any of this will be of any value to anyone but I'm revisiting this thread since I'm camping this weekend. In November of last year, I went to dishpointer.com and looked up my coordinates for the SL3. It said 42.2 for the elevation and 62.3 for the skew. The actual was 44 and 70 respectively.

    I knew there would be some variance since the Phase III doesn't technically go with the SL3. I matched up the holes on the arm with the SL3 LNB but it still sticks out about 1/4 inch. Anyway, so I just used the dishpointer site again, for a different destination, and added the same variances to pre-adjust my dish. Hopefully this will save me a few minutes during setup.
     
  15. schneid

    schneid Godfather

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    Aug 13, 2007
    I finally got around to introducing a "Dish" 1000.2 into my DirecTV HD setup. What the photo shows is a DirecTV Phase III Multi-satellite mast assembly with a Dish 1000.2 reflector and Slimline arm. Bolted to the top of that is the original Phase III Multi-satellite dish arm with an SL3. The length of the arm from dish edge to to SL3 insertion point is 18 5/16ths inches. The dish is located in Northern Nevada. I am getting 90 on the 101 and mid-70's on the 99 and 103's.

    [​IMG]

    Using the Phase III Multi-sat dish I was seeing low 80's and mid 60's.

    Now I need to figure out how to hide the "Dish" logo or add a "NOT" sticker
     
  16. jmikestock

    jmikestock Mentor

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    Oct 8, 2008
    My suggestion would be to spray paint it gray and paint an Alabama Chrimson Tide "A" on the face. Maybe add a "ROLL TIDE". Your reception should improve 5 to 10 points.

    [​IMG]
     
  17. schneid

    schneid Godfather

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    Aug 13, 2007
    It sanded nicely and has a new goat of gray Rustoleum. As for the BIG A, probably not.
     
  18. schneid

    schneid Godfather

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    Aug 13, 2007
    I can see a need for a "Pimp My Dish" thread.
     
  19. TheRatPatrol

    TheRatPatrol Hall Of Fame

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    Phoenix, AZ
    Are those the suction cups that were featured on an episode of Pitchmen?
     
  20. jmikestock

    jmikestock Mentor

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    Oct 8, 2008
    Not familiar with Pitchmen. This is a glass lifter. Bought through Amazon.com.
     

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