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FIOS TV pixellation fix - attenuate to SNR 31

Discussion in 'TiVo Series3 HDTV DVRs' started by AbMagFab, Nov 19, 2007.

  1. richsadams

    richsadams Active Member

    8,893
    2
    Jan 4, 2003
    30746 - Series3 w/2 Comcast/Motorola "S" cable cards - No problems
    30746 - TiVo HD w/1 Comcast/Motorola "M" cable card - No problems

    The only time I note tiling/macroblocking/pixelization is when the SNR is 36+ which is fairly rare and seems to happen on the local NBC channel more than any other.

    My results are also posted on this thread discussing many of the same issues (w/both FIOS and cableco's) with various suggestions for fixing things that have worked for some.
     
  2. kmalone576

    kmalone576 New Member

    24
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    Jul 1, 2007
    S3 - intermittent problems with 30746
     
  3. brigont

    brigont New Member

    20
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    Jan 28, 2008
    Yes,

    This is confirmed. If you are awaiting a Fios install and they have committed to giving you gear then you are ok (although I imagine they would have conducted all the installs with existing equiptment by now and everyone else on the calendar are playing the waiting game).

    No HD gear for all new orders and replacements for now...

    Brian



     
  4. brigont

    brigont New Member

    20
    0
    Jan 28, 2008
    Thanks richard,

    But no need... Daisy-chaining three 6db attenuators did the trick. I have been reviewing all recent recordings and don't see macroblocks anymore.

    Only time will tell.

    Brian

     
  5. NovaFIOS

    NovaFIOS New Member

    15
    0
    Feb 21, 2008
    I bought my TIVO on AMAZON but they also have a 30 day return policy as well as the TIVO service. I will keep the FIOS Moto Box and do a trial with the TIVO. While I like the TIVO software much better, I agree that pixelation on any channel especially HD would be a show-stopper for me. I just don't understand why Verizon and TiVo can't get their crap together.

    Verizon is coming this morning to install the S-Cards. Since I had so much trouble with the previous DVRs they agreed to waive the installation fee. If it works I can return the moto box to the local Verizon Experience Store. If not, I will keep it and return the TIVO.

    BTW I am in Northern Virginia. I have read other posts where people say they do not have any trouble? I am starting to wonder if this is a small number of people having these problems or is it everyone.
     
  6. Martin Tupper

    Martin Tupper Pontiff Emeritus

    2,403
    0
    Dec 18, 2003
    I'm with Fios in Falls Church, VA. I had this problem my Series 3. Had to add 18dB worth of attenuation.

    Just installed two new TiVoHD's and didn't have to attenuate at all with the same ONT, cable cards, and internal cabling.
     
  7. NovaFIOS

    NovaFIOS New Member

    15
    0
    Feb 21, 2008
    Ok, Verizon came and installed cable cards. The tech was very nice, (helped me hang a picture while he waited for Cards to initialize :) )
    First card took a bit, he had to call in and get some help to get the digital channels to show up, but they did come up, second card was up and running really quickly. I think, he was there for approximately an hour.

    So far I have not seen any sort of pixellation at all on any channels. I did notice on HD HBO that there seems to be a flicker at the top of the screen which could be annoying but i am going to wait to see if its all the time. Other HD channels were very crisp. Lower SD channels were as good as they were with the Motorola box.

    I am treating this as a trial. I have 30 days where I can return my TIVO and stop the service if anything comes up. The tech told me my signal was around 2 (whatever that means). He said a hot signal was around 4 so I shouldnt need any attenuators. I asked for some just in case and he gave me a few and also a splitter. He also gave me his card if I have any problems within the next 3 days.

    I also kept the Motorola box so that I can either return it myself, or reinstall it if I decide TiVo aint worth it. So far, it is. I was able to listen to some of my ITunes music the other day through my Home Theater system, sounded awesome, I am going to test the Amazon Unbox thingy, and I have scheduled a few recordings online.

    One thing that is a little annoying is that when changing channels sometimes, the screen goes blue for a sec and says "No Signal" then comes back. I think this happens when the video is changing formats - 720p - 1080i etc. Also, when going to the TiVo Screens it does this too. Anyone else experience this? I remember it did this on the moto box too until i adjusted to only be 720p and did the 4:3 override.

    Anyway, will let you know how things go.
     
  8. NovaFIOS

    NovaFIOS New Member

    15
    0
    Feb 21, 2008
    Ok, First Night with TIVO HD and FIOS and all I can say is "I FREAKIN LOVE IT". It is flawless, I have had absolutely no pixellation issues on any channel. I solved the channel changing flicker/delay by setting the Video Format to 720P fixed. Although my TV is capable of 1080i, I don't see a difference between 720 and 1080 and I have read some forums where it says 720 is better anyway. (unless you are at 1080P which noone broadcasts in anyway) Incidently, I had my motorola box set up this way as well.

    I am now enjoying the wonderful ease and stability of TiVo. I played around with some of the online scheduling features and also ordered an Unbox video, all of which were set up and waiting for me when I got home.

    With the use of TiviTunes and the universal audio thingy, I have tested playing some of my iTunes stuff which sounded great through my Audio System. (Good bye CD players).

    I am sorry others have had such issues, but I am very very happy right now. I highly recommend switching from the crappy Motorola box. :up:
     
  9. richsadams

    richsadams Active Member

    8,893
    2
    Jan 4, 2003
    I found one of these to be preferable over the Motorola box we used to have. ;)

    [​IMG]
     
  10. ciucca

    ciucca New Member

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    Jun 29, 2004
    All I can say is check back in a month and let us know how it's going :D
     
  11. NovaFIOS

    NovaFIOS New Member

    15
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    Feb 21, 2008
    Did you have it working only to have it not working later? :eek: As I said in previous post, I am treating the 30 day return and cancellation as a trial period but from what I have so far experienced, I am very pleased. I kept my motorolla just in case, but i would love to throw that piece of **** under a bus.

    BTW, I agree with richsadams ;)
     
  12. bkdtv

    bkdtv New Member

    7,902
    0
    Jan 9, 2003
    DC Metro Area
    NovaFiOS,

    Your experience mimics mine, although I did have to add a 10dB attenuator to eliminate pixelization on ~5 SD channels. I never had pixelization on the other SD and HD channels.

    The TivoHD should get even better with the software update expected in March.
     
  13. NotVeryWitty

    NotVeryWitty Too Big to Fail

    764
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    Oct 3, 2003
    Central Mass.
    bkdtv,

    Did I miss the announcement that makes you expect the update in March? (I did see last week's message from TivoPony that said an update was coming some time "soon", but IIRC he didn't promise a date.)
     
  14. kmalone576

    kmalone576 New Member

    24
    0
    Jul 1, 2007
    Just an FYI - my S3 and FIOS worked flawlessly together for more than 6 months (with no attenuators, etc) before I started having pixelation problems requiring playing musical attenuators. So having no problems for 30 days doesn't guarantee it will always work...
     
  15. sturdydog

    sturdydog New Member

    11
    0
    Nov 23, 2002
    Annapolis, MD
    My worked for many months as well then had problems for about 2 months and now works flawlessly with no attenuators while my HD unit has problems. Go figure. Personally I think it is software problems as hardware problems would be more consistent in my opinion.
     
  16. bkdtv

    bkdtv New Member

    7,902
    0
    Jan 9, 2003
    DC Metro Area
    TivoPony said they hoped to have the update out just after the Superbowl last month, but that a bit more work was required.

    I think March is a safe bet, but I don't have any new information.
     
  17. NovaFIOS

    NovaFIOS New Member

    15
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    Feb 21, 2008
    What is the software upgrade supposed to do? Is is supposed to make it more stable?
     
  18. bkdtv

    bkdtv New Member

    7,902
    0
    Jan 9, 2003
    DC Metro Area
    Part of your monthly fee goes toward software improvement to add features / functionality.

    TiVo added a revamped wishlist, eSATA external drive expansion, TTG, and MRV with the last software update. The next software update is supposed to eliminate bugs and improve performance. From the post above, we should see it very soon.
     
  19. ilh

    ilh New Member

    377
    0
    Dec 21, 2007
    I added another 6dB attenuation to bring my THD to 25dB (16dB attenuators, 3.5dB 2-way splitter, 5.5dB 3-way splitter) in an attempt to stop errors on 836 (HD Theater, 747MHz). I'm still seeing some corrected errors, but uncorrected seem better than with only 19dB attenuation. I'm finally down to 31-32dB SNR. I must have a beast of a ONT putting out lots of signal.
     
  20. bilbo

    bilbo New Member

    315
    0
    Dec 7, 2004
    i added 10db of attenuation to get my snr down to 31/32. before i got to that value of attenuation, i had no picture with 20db of attenuation (black screen), and i seemed to have pixellation at 16db of attenuation and uncorrected errors were tallying up at 16db (snr was about 27/28 -- did not notice what the signal strength was). it seems to have taken the pixelation i had away (which were occuring on the hd channels only as far as i can tell).

    this seems to be a pretty good setting so far -- i didn't try 13db. it sounds like from the comments that 31 or 31/32 is the sweet spot, and 32/33 is still too high. so i guess i am right on the edge, but i'm assuming it is best to use as little attenuation as necessary to correct the problem and get the snr at the "sweet spot."

    my pixellation problem has been fairly recent on the hd channels only, however (about the last four weeks -- i recorded lost on both abc's last night and ended up having to watch it in 4:3 standard-def because of pixellation on abchd). i had not had much of any problems before that {at least on the hd channels -- a few channels in the 150-160 standard definition digital range started pixellating about a year ago (i.e. sci-fi; this problem lasted for about four weeks but i believe bkdtv said verizon was doing some work in my area at that time)}.
     

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