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SWM & SWMline general discussion

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

  1. May 9, 2012 #1161 of 1305
    jmikestock

    jmikestock Mentor

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    The point I was trying to make is that an out-of-plumb dish only effects the tilt/skew if you use a meter and get the elevation and azimuth dead on. Your elevation may not match the scale on the dish but if it's right who cares? You get a 95%+ on 101 and 99 and 103 won't be far off.
     
  2. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    You're trying to make a good point, but it would be the same for both the SL3 & SL5, and "out of plumb", depending on which way it is, would mean slight adjustments to all three of the adjustments.
     
  3. jmikestock

    jmikestock Mentor

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    I can be way out of plumb and still perfect the 101 signal just like with the 18" dish. I will still get a signal off 99 and 103 if I am anywhere reasonable on the tilt/skew. This won't hold true for the 110 and especially the 119 because of the distance between 101 and 119. My tilt setting for my home area is 70 deg. I can set it on 90 deg and still get enough of a signal with a SL3 to watch 99 and 103. No way would I get any signal with a SL5 from 110 or 119 set on 90 degrees.

    Don't misunderstand: I am not using the scale on the dish for setting the elevation. I strictly depend on a compass and my meter. I sometime have to set my crude, 4 legged PVC mount on some uneven ground. I use the meter to perfect the azimuth and elevation and sometime make a rough, visual correction for the tilt/skew because I know it's not that important. I'm always dead nuts on the 101 though.
     
  4. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Not sure why this is even in this SWiM thread, "but" tilt/skew is the same whether you're going after 99/103 or 119, since it has to do with the arc of the SATs relative to your location.
    You could use the same meter to "dither" the tilt on the 119, and as long as you didn't run out of adjustment, it will work.
     
  5. jmikestock

    jmikestock Mentor

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    Oct 8, 2008
    I was only responding to the myth that a plumb mast is critical when dealing with a Slimline 3. The only effects of the out-of-plumb mast are that: (1) the elevation scale is inaccurate and, (2) the tilt/skew is off. The elevation scale is not necessary if using a signal meter and the tilt/skew is not that important on the Slimline 3. I use an Acutrac II with an ASL-1 to find the 101 and the Ka's are always there.

    There are even instructions (pdf, page 38)for use of the AIM Advanced Installation Signal Meter for DIRECTV Satellite Dishes, sold by Solid Signal, that states that, for a Slimline 3, no tilt adjustment is necessary.
     
  6. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Yes, it's worth trying to dismiss the myth of a plumb mast. It only makes the alignment easier.

    I wouldn't put too much faith in pg 38 of the AIM instructions, as in this case tilt IS important:

    [​IMG]

    [full size here: http://www.dbstalk.com/attachment.php?attachmentid=29128&d=1336741431 ]
     
  7. harsh

    harsh Beware the Attack Basset

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    The point that should be made is that everything is a lot easier if the mast is plumb. No special equipment is required if you can use the elevation and tilt scales.

    It is possible to eat and drink while standing on your head, but justifying as an alternative to sitting down at a table is pretty silly.
     
  8. jmikestock

    jmikestock Mentor

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    Oct 8, 2008
    The fact is that, as said before, 5 degrees tilt one way or the other makes very little difference in 99 and 103 signals.

    In my case, I am using a small, experimental dish with a SL3 horn in my RV. The elevation scale is not accurate anyway, so a meter is essential. I have set this dish up, probably, a hundred times. I also have a portable stand and a standard SL3 but don't use it much anymore.
     
  9. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    And now back to our regularly scheduled discussion about SWM & SWMline.
     
  10. jmikestock

    jmikestock Mentor

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    Oct 8, 2008
    I never left the SWM subject. All my previous posts have been related to my SL3 SWM that I set up while RVing.
     
  11. Mike Bertelson

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

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    Let's keep the personal stuff out of the discussion. Take it PM or report the post but don't post it here.

    :backtotop

    Mike
     
  12. dudester

    dudester Cool Member

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    Feb 16, 2012
    I picked up a swim 16 and am planning on converting from a wb68 setup. After reading a few threads and the forums i have a couple questions now. I just read on a post that the standard nondvr H20's do not work with swim.is this true since i have 3 of them? I just had a h20 go bad and tried to get them to swap a with a referb 21 but they would not do it. Am i correct that my Hr20's and h20's will still need the bbc,s. i have a hr21 and anothe h21, do they still need the bbc also. I have a swim 16 with two green 8 way splitters. I planned on removing the wb68 and then abandoning the additional wires currently used on the #2 tuners on dvrs. On a 8 way splitter am i correct that if it is suppling say only dvrs then it can only have 4 wires connected, since that would add up to 8 tuners. Would i be better off getting a 4 way splitter for that bank of 8 tuners and using all 4 ports instead of having 4 capped?
     
  13. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    The H20s work with SWiM, so you don't need BBCs.
    If you're only needing four coax, there really isn't a [good] reason to use an 8-way, when a 4-way has less loss.
     
  14. HoTat2

    HoTat2 Hall Of Fame

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    That is not true as VOS says.

    Yes, unfortunately DIRECTV can be cheap and stubborn that way at times, particularly the frontline CSRs who have little bargaining power. I suggest you call back more than once to give other CSRs a try. If that bears no fruit give the Retention Dept. a try. Remember to always remain polite regardless of outcome.

    Not correct, the HR20 like the H20 will both work with SWiM.

    No, they are SWiM capable as well.

    Correct, not including any additional cables needed for OTA tuners on either the H20s or HR20s of course

    As VOS says, yes you would be better off with 1 x 4 splitters on each leg of the SWiM-16
     
  15. dudester

    dudester Cool Member

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    Feb 16, 2012
    Okay, so if i install two 4 way splitters with 4 dvrs i can have a additional 4 non dvr receivers and i am capped out at 12 tuners. Thats what i had thought. Would it be better to have two dvrs and two standard boxes on each 4 way or would it really matter? I can pitch all the broadband converters then with the swim setup? I have seperate coaxs pulled from the roof antenea , so no need to intergrate them and i am on unsupported network with a 24 port switch with 2 cat 6 runs pulled to each box with one run as a spare. Again thats why i asked to send a 21 instead of the 20, when the 20 died. I already have a couple am21s standing by. When i had a netgear switch i would drop a dvr off mrv until i switched to the 24 port trendnet and have not have any troubles in a few months
     
  16. HoTat2

    HoTat2 Hall Of Fame

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    It really shouldn't matter, but then again having two DVRs and two STB receivers on each 1 x 4 splitter prevents you from the need to use the highest SWiM frequencies to accommodate all tuners for 4 DVRs on one splitter, so that may be better.

    And yes you can pretty much ditch all the BBCs with SWiM. I've got a bunch of them lying around here as souvenirs myself.
     
  17. elbyj

    elbyj Godfather

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    When we moved last year from Texas to Idaho, DirecTV hooked up the new dish to a SWiM 2-way splitter (2-2150 MHz) to satisfy the two HD receivers we had at that time in the house. The installer also installed a SWM ODU only power inserter at the main receiver/TV. Recently we sold one of the HD sets and retired the HD receiver (H21-200), so we only have the one receiver (HD DVR) in the living room. I am trying to combine an OTA with the DirecTV signal into the CAT 6 feed to the main TV. Here is my situation:

    (1) Prior to building my custom TV cabinet I installed a Holland VHF/UHF/SATdiplexer (?) at the TV end of the cable with one feed going to the coax feed on the TV and the second cable to the SWM ODU Power unit which is connected to the receiver. NO PROBLEMS at all.

    (2) Yesterday (thinking this was going to be simple) I secured the OTA next to the dish and ran the CAT 6 coax to the demarc point for DirecTV. Unhooked the cable from the SWiM splitter for the living room. Hooked the IN/OUT portion of the Holland diplexer to the feeder cable to the living room and used a second CAT 6 cable to go from the SWiM splitter to the sat port on the Holland diplexer. Thinking this would work I went back inside to check the signal -- no signal at all, even after a reboot! Even put a different CAT 6 cable between the splitter and the diplexer -- same problem.

    (3) Disconnected everything and reconnected things back to the original state and everything worked fine.

    My questions are:

    (1) Is all this SWiM equipment causing the issue with not getting a signal through the diplexer to the TV?

    (2) Since we only have one set, do we really need all the SWiM equipment? Could I go direct from the dish feed into the cable to the living room and bypass the SWiM splitter and the WMN ODU power unit? Can I go direct to my HR 21-700 with the sat feed?

    Sure would appreciate an answer --- thanks much.
     
  18. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    You can go: dish/LNB -- PI - receiver. with only one receiver, you don't need a splitter.
    I'm not sure how RF signals pass over cat6 cabling. :confused:
     
  19. elbyj

    elbyj Godfather

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    VOS -- Thanks for the reply --- what is a PI???? Also, the OTA signals will pass through the diplexer.
     
  20. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    The SWiM needs a power inserter [PI]
    Diplexers are an RF device, so "of course" OTA will pass.

    What I don't understand is the use of CAT6. Coax is best for RF, and CAT6 is twisted pairs, which isn't.
     

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