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SWM & SWMline general discussion

Discussion in 'DIRECTV Installation/MDU Discussion' started by Doug Brott, Jul 30, 2008.

  1. Sunner73

    Sunner73 AllStar

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    Feb 29, 2012

    I was concerned about compromising the effort of the alignment process. However I just need to relax and let them do the aligning "their" way.

    Thanks for the feedback.
     
  2. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Dec 9, 2006
    What you really want them to do is to dither the alignment.
    Swapping the LNB isn't that big of a deal, while sloppy alignment has been for me.
    Two recent installs on the peninsula, as had one require a second visit to improve the alignment, and the other, was mine so I did it myself.

    Check the 99 & 103 SATs and don't accept 70s. :nono:
     
  3. carl6

    carl6 Moderator Staff Member DBSTalk Club

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    Seattle, WA
    You can also take two of the legacy outputs and use them to feed a traditional 2x or 4x multiswitch from which you could feed legacy tuners (such as the Tivo). As long as all you need is 101, you would have no problem doing that. Stacking of course has the advantage of single coax runs (in a non-SWM environment, and where you have a receiver capable of de-stacking).
     
  4. Sunner73

    Sunner73 AllStar

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    Feb 29, 2012

    I have always done ALL of my own work, No installer has ever done anything for me but the new Slimline dish appears to be more difficult to align (especially for the KA sats) and I just can't see investing in something like an alignment meter, like Birdog.

    You mention "sloppy alignment has been for me" and a second visit to improve it...... I guess that is where my concerns were based on my previous posts about R&R the LNB when it shouldn't have to be handled after aligning.......

    You also mentioned that "I did it myself", you have a meter? From what I've read it seems to be the only way to align one of these Slimlines otherwise you get to many low #'s which might be ok until rain starts.
     
  5. bflora

    bflora Legend

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    Nov 5, 2007
    I don't think you can stack the 101 signals coming from a slimline lnb. It already has signal at the frequency range that the stacker uses to stack the one polarity. I think you would need to filter out 1550 to 2050 mhz range from the slimline output to stack the upconverted frequency.
     
  6. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Dec 9, 2006
    I use a receiver and a TV, on a long cord.
    Dithering is how you stay away from "low numbers". ;)
     
  7. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Dec 9, 2006
    You did find a weak spot to his plan.
     
  8. Sunner73

    Sunner73 AllStar

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    Feb 29, 2012
    Check out the 2nd page of the previous link I included pertaining to the "uS575". It clearly shows a SWM8 and the 2 legacy ports. In fact I've spoken with Sonora tech support numerous times about concerns and they have assured me that it will work. It makes sense because why would they have a illustration showing how it to configure it if it didn't work.
     
  9. bflora

    bflora Legend

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    Nov 5, 2007
    This is a new version of the us575. I see it has Ka filtering which is exactly what I was getting at with the filtering of 1550-2050 mhz. I am glad that they upgraded it to work with slimline lnb's. The older versions of the us575 didn't have the Ka filtering.
     
  10. Sunner73

    Sunner73 AllStar

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    Feb 29, 2012

    I will post an update after the install is completed to let you all know how it is working.

    P.S. I know that when I called DTV to obtain an HR34 and HD receiver the CSR's (multiple calls on different days) all kept wanting to replace my old receivers with their latest SWM compatible units (SD of course) but of course I was not going to have any part of that. Because of the inability of either an SWM8 or 16 not being able to support 3 SD DTivos they said they couldn't do it, I totally understood the technical part of it but I did not feel like explaining to them about the Sonora product(s) so I've taken it upon myself to do the sat/swm8 install myself so that when I order it will be a simple (relatively) install for the HR34 & HD receiver. I've already ran new dual RG6 home runs to every room (1 for the future upgrade to SWM equipment and 1 for OTA's) and I ran them through the attic with labeled wall plates. Blue core (3Ghz) connectors used w/Perfect Vision blue compression connectors everywhere.

    ** If you want something done the right way, DO it yourself and you can't bitch about it. **
     
  11. Sunner73

    Sunner73 AllStar

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    Feb 29, 2012

    I'm having nothing but problems trying to dither my dish and it makes me think back to when I installed the J-pole... it came with the little bubble in the pole for leveling. I used it to level the pole but I made sure that it was seated properly before I did anything, however I never had one of those with my old round and then my Channel Master triple dish.

    How reliable are those bubbles for alignment purposes? Has anybody ever had any issues with them NOT being accurate? Do the poles ever come with a non perpendicular surface (for the bubble level to sit on)? If so I've wasted my time for nothing... Thankfully it's my time and @ no $ out of my pocket.

    I'm beginning to wish now that I would have disregarded it and just use my magnetic levels on X & Y axis (like I've always done in the past) that way I would know for certain the mast is plummed perfect. I will take off the dish tomorrow and double check the mast.... the old way.
     
  12. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    I've seen manufacturing defects, so it might be off, "but" once the mast is secure, dithering should work even if the mast is cockeyed.
    There was a fairly long thread some time back about "how plumb" the mast must be. "The truth" is that being plumb only makes the job easier/quicker, as you can align the dish with it being almost 90º off plumb. You'll only have more trouble/time doing it, as all the axis will move differently, or you'll run out of range.
     
  13. Sunner73

    Sunner73 AllStar

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    Feb 29, 2012
    Thanks for the reply. Since it's easy I'm going to double check the mast tomorrow just for my own piece of mind, especially since I'm going to do the dithering of my SL5 dish. What do I have to lose but some time.
     
  14. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Dec 9, 2006
    This is a crude attempt to show what the two fine adjustment will do with a mast off plumb.
    They both still adjust at 90º to each other.


    [​IMG]
     

    Attached Files:

  15. cal87

    cal87 AllStar

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    Sep 6, 2006
    I just had a failure of the power inserter. Have had it for about two years. Think it was the PI-28 model. I had to climb up and bypass the SWM I had installed under the eave by my dish and run on single tuners while I waited for a replacement to arrive. Got the PI-29 this time. Then had to re-wire again. What a PITA.

    Any one know the failure rate on these power supplies and SWM modules? Wondering if I should pick up a spare just in case, so next time I don't have to go through the hassle.
     
  16. Sunner73

    Sunner73 AllStar

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    Feb 29, 2012
    I don't have any data about the failure rates but on a different thread there was discussion about "how" the PI should be mounted, ie, if vertical then mount with the coax connectors facing down. Apparently there are some thermal concerns if mounted w/connectors up.

    Hope it lasts longer this time...
     
  17. Sunner73

    Sunner73 AllStar

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    Feb 29, 2012
    Well the alignment/dithering process when quicker (as VOS indicated) after I disregarded the little bubble in the mast and used levels to perfectly plum the mast, I now have 90's+ on all Transponders just by using the receiver's signal strength meter. Thanks VOS!


    After completing the upgrade to the SWM system I've now got the 5 SD DTivo's working with very strong signals (94-100's). All on single coax runs. Now I'm awaiting my new HR34 and HR24 (yes, I had to go to somebody else than DTV for the 24, ie, Solid Signal).

    Now I can remove the old triple dish and it's wiring then up goes the OTA. I can't wait .....
     
  18. cal87

    cal87 AllStar

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    Sep 6, 2006
    I had it horizontal sitting on the ground. All of the sudden I was getting a wiring problem message, then within an hour it was dead. Foul smell from the device.

    Oh - and I forgot, had to dig up some BBCs for temporary use.
     
  19. May 9, 2012 #1159 of 1305
    jmikestock

    jmikestock Mentor

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    Oct 8, 2008
    The effect of a mast being plumb depends on what satellites you are trying to receive. If you are attempting to hit the 101, 110 and 119 a plumb mast is critical. If you have a Slimline 3 you're trying to align, then a plumb mast is not so critical. These three (99/101/103) are in such a tight cluster that you can be significantly off and have little effect on the signal strength. I have intentionally thrown my tilt off by 5 degrees in both directions and seen a change of only about 1 or 2 % on the Ka's.

    Even with my experimental dish, which I have set up many times for my RV, I only eyeball the vertical setup. I sometimes have to set up on irregular surfaces and know I am way off vertical. I simply make a guess at how much to change the tilt to compensate. The other two settings, elevation and azimuth, are derived with my Acutrac, lining up on the 101.
     
  20. May 9, 2012 #1160 of 1305
    studechip

    studechip Godfather

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    Apr 16, 2012
    Having a plumb mast only makes aligning the dish easier. As long as the mast is plumb within the adjustments of the dish itself, it really is irrelevant.
     

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