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HMC30 details from CES

Discussion in 'DIRECTV General Discussion' started by Citivas, Jan 8, 2011.

  1. harsh

    harsh Beware the Attack Basset

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    The MoCA Alliance offers this white paper from 2005:

    http://mocalliance.org/industry/fie...x_Alliance_Field_Test_Report_Executive_Su.pdf

    Page 9 of the following report says that the MoCA 1.1 standard raises the bar to a MAC rate of "up to" 174Mbps:

    http://mocalliance.org/industry/white_paper/Branded_Implication_Paper_MoCA.pdf

    Notable is that the 100% passing MAC rate is 95Mbps.

    The relationship between PHY rates and MAC rates vary all over the map but the MoCA 2.0 specification suggests that the MAC rate is going to be about 40% of the 1Gbps PHY rate.

    PHY rates are sure look good and they are useful for "tuning", but the MAC rate is the only statistic that counts in the end.
     
  2. hdtvfan0001

    hdtvfan0001 Well-Known Member

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    Not sure how relevant anything from 2005 and/or MoCA 1.1 would be on this topic.

    At CES...we were talking to the Entropic folks about MoCA 2.0.
     
  3. harsh

    harsh Beware the Attack Basset

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    Have you tested six WHDS simultaneous sessions at once? That would be a rough approximation of having two HR34s on the same cloud (discounting RVU overhead).

    Client devices don't have the option of falling back on satellite tuners.
     
  4. sigma1914

    sigma1914 Well-Known Member DBSTalk Club

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    Have you tested any streams on Directv WHDVR in your home?
     
  5. hdtvfan0001

    hdtvfan0001 Well-Known Member

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    Actually in an HR34 environment, that's exactly how it works... all clients, including RVU-enabled HDTV's rely on the HR34 tuners instead of their own. So your statement only adds to your continued misinformation on this topic.

    Also, I have personally observed all 6 of those WHDS HD DVR units at Rich's location concurrently operating (multiple times), and...no problems seen whatsoever. End of story.
     
  6. sigma1914

    sigma1914 Well-Known Member DBSTalk Club

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    First hand knowledge of how Directv works sure adds much more credibility to discussions here. ;)
     
  7. harsh

    harsh Beware the Attack Basset

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    Does the HR34 support MoCA 2.0.
     
  8. hdtvfan0001

    hdtvfan0001 Well-Known Member

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    The prototype or the production version?

    No and not announced.

    [There are other newer (than 1.1) version MoCA devices in the world already]
     
  9. ndole

    ndole Problem Solver

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    :rolling:
     
  10. Richierich

    Richierich Hall Of Fame

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    Now That's Funny!!! :lol::lol::lol:
     
  11. harsh

    harsh Beware the Attack Basset

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    In the first sentence you state emphatically that I stated exactly how it works. In the sentence that follows immediately you insist that I don't understand. It would appear that you are the one that is confused.

    My statement came from the idea that RVU clients can't fall back on their tuners as a DIRECTV receiver might and hence, having the necessary DECA bandwidth available is more of an imperative than for WHDS.
    I asked about seven, but six seems good enough.
     
  12. Richierich

    Richierich Hall Of Fame

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    hdtvfan0001 meant to say 7 and not 6 as he has seen all of my DVRs banging away flawlessly while MRVing with a SWM16.
     
  13. sigma1914

    sigma1914 Well-Known Member DBSTalk Club

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    :nono:
     
  14. harsh

    harsh Beware the Attack Basset

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    DECA being one example that uses adopted extensions to the 1.1 standard.

    http://www.digitaltvnews.net/content/?p=14112

    That being said, interoperability of extensions is often iffy at best. You and I are both old enough to remember the days of competing modem standards and the hairball that was "Class 2" versus "Class 2.0" facsimile control protocols.

    More to the present situation, consider the mess that exists with HDMI and the morass of selective implementations and how they've been tripped up by 1080p24 and 720p 3D.

    I see a similar problem brewing from implementation of the ATSC's extension of the broadcast TV standard to include AVC encoding.
     
  15. hdtvfan0001

    hdtvfan0001 Well-Known Member

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    No confusion here at all.

    I stated how it works - nothing more - the tuners are in the HR34 - not the clients - as posted and discussed by many on numerous occasions at and since CES.

    Not to worry - The probability that I would ever state (emphatically or otherwise) that you have any substantive knowledge regarding anything DirecTV is electron microscopic. :nono:
     
  16. harsh

    harsh Beware the Attack Basset

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    And I meant to say seven instead of what I actually typed.
     
  17. hdtvfan0001

    hdtvfan0001 Well-Known Member

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    Actually...I saw just 6...the 7th wasn't turned on when I was there - the bathroom was off limits.... :D:lol:
     
  18. spartanstew

    spartanstew Dry as a bone

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    You didn't get to see Rich's Golden Throne?
     
  19. hdtvfan0001

    hdtvfan0001 Well-Known Member

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    Nope.

    But I did get to stay at a Holiday Inn Express last week, and I saw the HR34 at CES...so that's something. :D
     
  20. Doug Brott

    Doug Brott Lifetime Achiever DBSTalk Club

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    OK .. pulling it back a bit into the discussion ..

    I haven't seen any evidence that DECA is problematic @ 6 streams. There was one poster some time back that thought it wasn't as good, but there was no way to check the reliability of the information because the speed diagnostics were not yet in the firmware. That has since changed, but that poster has also since gone to Ethernet via a Gigabit Switch. The information is empirical at best .. and inaccurate at worst. The PHYS data was needed but not available.

    So backing that one case out (due to the uncertainty of the results) .. is there any other evidence of this being a bandwidth problem via DECA. I simply don't foresee this being any bigger a problem with RVU as it is with MRV ..

    richierich .. wanna walk around your monster house and crank up a remote stream on each system and see what the results are? Basically A pulls from B, B pulls from C, .... G pulls from A .. Should be 7 streams for 7 systems (assume all are DVRs).
     

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