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The official "ask veryoldschool" thread

Discussion in 'DIRECTV Connected Home' started by Stuart Sweet, Jan 8, 2012.

  1. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    With a -25 Phy level, it isn't surprising that you have 250+ Mesh rates.
    Changing the 2-way splitter to a green labeled splitter should drop the Phy level [loss] to around -10. This won't change/improve the Mesh rates because they're already good and the loss is well within range.
    When the loss gets above -40 [dB], is when the Mesh rates start to drop due to a loss of the signal to noise ratio.
    The receiver will report an error during system test when the Mesh rates drop to or below 220.
     
  2. dsexton

    dsexton Mentor

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    Thank you very much for the help. My network is AT&T Uverse 20mBPS. For AT&T it works reasonably well. I use the horrible AT&T modem/router as a modem only, running through a Linksys WRT610N. I see no stuttering at all when playing anything from the HR34 so far. My HR20 is a 700. To get the use of both tuners on the old HRs with only one coax available to each, I have no choice other than SWM8, correct?
     
  3. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    "Yes & no".
    You need a SWiM for the dual tuner function with one coax.
    The SWM8 is a separate switch that you connect to four coax from the dish.
    The SWiM LNB does the same function, but replaces the LNB on the dish, and only has one coax.

    BTW: I too have Uverse and a 3600 2Wire, but it works fine. :shrug:
     
  4. dsexton

    dsexton Mentor

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    May 2, 2007
    Thank you again VOS. Looking at all the equipment needed and the cost, I may decide to try to stick with the ethernet connections to the HR20 and HR22 if I can get everything working right. Today I have noticed problems with my Nomad. It keeps dropping the connection while it is preparing a recording for download. It has successfully downloaded some programs but has repeatedly dropped the connection of preparing a recording from both the HR34 and the HR22. The Nomad is connected through a Linksys 8-port switch, which also connects the HR20 and HR22. After experiencing the problems, I first hid the HR34 from the Nomad; that worked for one recording but not a successive one, so the first one working must have been coincidence. After that I reset the router, the BBDeca, and the switch by unplugging and restarting. So far I have been monitoring the progress of the Nomad since the reset and it hasn't dropped again, but I won't know if the problem is resolved until I check again in the morning.

    I have not reset the entire network setup since the installation of the HR34 last weekend. I have 3 switches, the BBDECA, and the Uverse 3801 plugged into the router. Prior to last weekend I had static IPs assigned to the HR20 and HR22 and had put in 4.2.2.2 for the DNS--I switched my whole network from the Uverse DNSs since I was having so many problems with Uverse. The DNS switch on my computers did actually improve latency. A recent firmware upgrade seems to have fixed some wireless issues (my wireless is through Linksys WRT610N) but I am wondering if it may have introduced some networking problems. I had not tried the Nomad since the Uverse firmware update. When the DTV changes were made last weekend, I noticed the old HRs now have dynamic IP addresses and I am wondering if I should reconfigure to the old static addresses and use the router address as the DNS. If so, should I also set up the HR34 with a static address?
     
  5. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    I've got Uverse too and am using the 2Wire 3600, but also had the 3800 for a while.
    I use the wireless CCK/DECA, and don't bother to change anything from "straight out of the box" settings. "Well OK" I did select another WiFi channel than the auto detect one, but that's it and the only issue I've been fighting has been on the Uverse side as they have been randomly dropping the DSL signal. This has been a tough thing to find, but "hopefully" Friday's service call has finally got it as my noise margin is the best I've seen, and my error log shows none for 2 days 5 hours and 53 mins. :lol:
     
  6. BobGeeX

    BobGeeX Cool Member

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    In reference to my post and your answer of 4-28. The "system" crashed yesterday with 771A error message on the new HR34. Tried "red button" reset and "power plug" reset without success. Finally pulled the power on the SWM-16 and system came back up. Had Directv tech out this afternoon and like the original tech he was not knowledgeable on how to properly connect a HR20-100. He initially changed the hookup, putting in the Band Stop, and using the "new" Deca - would not work. I had the "old" Deca with me, put it in and it worked fine and the earlier pixelation problem was gone also. We repeated the process on another HR20-100 - same result - did not work with "new" Deca but did work with the "old" Deca. So, at least in our config the HR20-100 is not liking the new Deca . . . I gave the tech a copy of the VOS connection drawing - hopefully he will pass it around.
     
  7. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    Curious as to what the "new DECA" was verses the old DECA.
    Are these the small black ones, verses the larger white ones?
     
  8. May 1, 2012 #268 of 824
    BobGeeX

    BobGeeX Cool Member

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    Yes, works with the white Deca and not the black Deca. System has been stable for over 24 hrs. Grand kids are happy. Thanks VOS.
     
  9. May 2, 2012 #269 of 824
    Transeau

    Transeau Cool Member

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    Rancho...
    VOS,
    I'm curious as to how much loss the PI introduces? My system is stripped down to the basics now, a SWM-3 LNB, a "Green Label" 2way splitter, about 30' of RG-6 to an HR24, about 50' of RG-6 to an HR34 and the PI. Yet my phy levels are still -24 and -25. I'm not having any issues, but I would like it as close to optimal as I can get.
     
  10. May 2, 2012 #270 of 824
    veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    First you don't need to worry about those phy levels since you've got another 20 dB before your going to have problems, and even if you got them down to zero your Phy rate Mesh numbers wouldn't change, as you're in the range, like a TV picture doesn't get better once it has enough signal, where more signal doesn't return any better picture.
    Your levels are this way now.

    "Now" as I go through your numbers, I come out with about 10 more loss than you should have. The PI can't be the cause of it. It's hard to know much about the PI as I took mine apart and the coax goes into a sealed "splitter like" package. I'm guessing this is mostly for shielding as they "tap" the DC in and have a DC block on the output.

    The 2-way should have about -8 dB loss [as I've measured mine] and the 80' of RG6 should be down about 4 dB @ 550 MHz.
     
  11. May 3, 2012 #271 of 824
    infounlim

    infounlim Mentor

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    Am I incorrect in thinking that all SWM16's are DECA compatible? I just purchased one from an Amazon seller and there is no green label on the back. The specific model number appears to be SWM16R0-03.
     
  12. May 3, 2012 #272 of 824
    veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    I don't think there is a -16 that isn't.
     
  13. May 9, 2012 #273 of 824
    Sunner73

    Sunner73 AllStar

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    If a drop from the splitter wasn't available and since there is going to be a loss "one place or the other", what option would be the best "overall" choice?

    1) WCCK w/loss for the Deca,
    OR
    2) The loss of SAT signal caused by the extra (2way) splitter with a CCK?
    .
     
  14. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    The SWiM has a solid 30 dB range for loss, so there is some flexibility for the number and size of the splitters in conjunction with the coax loss.

    The WCCK has a pass through for the SAT signals, but adds 10 dB of loss for the DECA signals, so there will always be some trade-offs, no matter which way you go.

    Maybe explaining what you have and a rough guess as to the coax lengths might help to figure out the differences between the two signal losses.
     
  15. Sunner73

    Sunner73 AllStar

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    I've attached a drawing of how my system would look like for your referencing. I was hopeful of using a WCCK as it would give me the pass-thru capability but I'm still not sure if I should be using a 2 way splitter and a deadend CCK instead.

    So what do you think would be my "best" option?
     

    Attached Files:

  16. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    That looks very good, with the only change I'd look at is to move the PI to the #3 legacy port to power the SWM8.
    DECA & SWiM don't seem to like "looking" at the PI, without something like a lot of coax or a splitter in between.
    "Other than this tweak", I don't see anything else I'd change.
     
  17. David Ortiz

    David Ortiz Save the Clock Tower!!

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    I don't believe the WCCK has power-passing ports, so the PI would have to be flopped with the WCCK at the very least. Also, the HR34's ethernet port can be used to bridge to your router. You could eliminate the WCCK entirely.
     
  18. Sunner73

    Sunner73 AllStar

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    So ... can I use the same PI29 thru the legacy 3 port?

    If so then disregard the following....

    I seem to recall that when powered thru the legacy 3 port a 20V supply was to be used, any truth to that?
     
  19. veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    You can use [like others] the 29 volt PI on the legacy port.
     
  20. Sunner73

    Sunner73 AllStar

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    Since my router would be near the HR34 can I "actually" eliminate the "WCCK/CCK" altogether? Would the Deca system be supported by DTV without one?
     

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