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Satellite Buffer

Discussion in 'General DISH™ Discussion' started by nkeeper, Apr 5, 2004.

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  1. Apr 5, 2004 #1 of 22
    nkeeper

    nkeeper New Member

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    I have been told that Dish buffers their signal at their end on all channels so that I am never really watching live TV. Is this true? If so, How does it work?

    Thanks.

    Richard
     
  2. Apr 5, 2004 #2 of 22
    cdru

    cdru Hall Of Fame

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    I would imagine that there is a miniscule buffer on the encoders just for processing purposes, but as far as I can tell, there are no buffers on my local channels. Flipping back and forth between the two, they are 2-3 seconds out-of-sync which would be an expected delay considering you have to encode them, send them to Colorado, and bounce them off a satellite.
     
  3. Apr 5, 2004 #3 of 22
    Chris Blount

    Chris Blount Creator of DBSTalk Staff Member Administrator DBSTalk Gold Club

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    There is some delay at Echostar during the encoding process but much of the delay is getting feeds from the locals stations to Echostar and then back to your dish.
     
  4. Apr 5, 2004 #4 of 22
    Geronimo

    Geronimo Native American Potentate DBSTalk Gold Club

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    The previous two posters said pretty much the same thing. I will add to that only that a DVT introduces another 2-3 second delay. I have heard the same audio 3 times in my house. Always a bit odd but understandable.
     
  5. Apr 5, 2004 #5 of 22
    Big Bob

    Big Bob Godfather

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    In reality, you are never watching "Live" TV anymore. All along the signal path, there are delays and buffers. But they all add up to less than a second in total.

    I wouldn't worry about it
     
  6. Apr 5, 2004 #6 of 22
    JohnH

    JohnH Hall Of Fame

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    Encoding and decoding introduces a substantial delay. So does recording on a hard drive and then reading it off of the drive, That said, I still get the content off of my 721 before the DirecTV signal comes out. :)

    As far as live goes, everybody knows you can't send pictures through the air. :)
     
  7. Apr 5, 2004 #7 of 22
    jgoggan

    jgoggan Hall Of Fame/Supporter DBSTalk Gold Club

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    I assume that even when you are caught up to "live" on a DVR unit, it is still streaming to the disk and then reading from the disk to decode, correct? I expected more of a delay than I get. If I compare two images side-by-side on the same TV -- one from my 501 and one from my 811 -- the 501 is delayed only a tiny fraction of a second. I actually thought that it would be a bit more. Impressive.

    - John...
     
  8. Apr 5, 2004 #8 of 22
    jpoklop

    jpoklop AllStar

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    I had both cable and Dish in my house. For comparison, the Dish signal (through a 501) was always about 3 seconds delayed from the same local channel on cable. I never worried about it, but you do get a strange echo from the other room.
     
  9. Apr 5, 2004 #9 of 22
    Cholly

    Cholly Old Guys Rule! DBSTalk Club

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    I've noticed a similar delay between my local CBS outlet's analog signal (via cable) and their digital OTA signal. Interesting...
     
  10. James Long

    James Long Ready for Uplink! Staff Member Super Moderator DBSTalk Club

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    That's why you have to buy a new TV every few years. They can only pre-load so much content before they sell it to you. Satellite systems help as the receiver comes preloaded with all the programs you will ever watch without needing to store them in the TV. The dish or OTA antenna is only used to receive sync information to let your receiver or TV know when to play back the shows.

    Copyright and other restrictions don't allow you to see the stored programming until the release time, and then only once. It is strongly encrypted to prevent hackers from stealing information such as who the final Survivor will be or the outcome of the Superbowl.

    There has been some movement to remove the restrictions on advanced viewing when it comes to weather alerts, especially fatal storms. Unfortunatly the government doesn't want to get into temporal policing ... so for now even life saving information is locked in your set until the moment it was scheduled to air.

    One further note: I wish I was this creative last Thursday. If you believe any of this, you may wish to consult reality. :D

    JL
    Post 1040 ... Don't let it tax your mind.
     
  11. garypen

    garypen Hall Of Fame/Supporter DBSTalk Gold Club

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    That's because digital signals move slower than analog signals due to the increased bias oscillating flux of the multipath frequency harmonic. I thought everybody knew that.
     
  12. jerry downing

    jerry downing Godfather

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    Can you get me next weeks lottery numbers?
     
  13. amit5roy5

    amit5roy5 Duplicate User (Account Closed)

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    Yes, there is a 2 second delay. Oh well! :(
     
  14. Cholly

    Cholly Old Guys Rule! DBSTalk Club

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    Yeehaw!! :lol:
     
  15. Codeman00

    Codeman00 Godfather

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    My HD channels are right on with by brother watching ball games closer to the area that the game is being played....in other words, ESPNHD and CBSHD are in sync with his cable ESPN and CBS. If I switch to the regular CBS or ESPN through my Dish Network, the signal is out of sync slower by 3 seconds or so. I can be on ESPNHD...watch a play then flip to ESPN and see it again. That makes no sense to me.

    ESPN Game Plan and Full Court are always lagging way behind the real local signal...5-6 sec.

    Can anyone explain all of that?
     
  16. JM Anthony

    JM Anthony Child of the 60's DBSTalk Gold Club

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    For a Franklin, I'll give you last week's winning numbers?
     
  17. garypen

    garypen Hall Of Fame/Supporter DBSTalk Gold Club

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    What I'd like to see explained, is why that would bother anybody.
     
  18. nkeeper

    nkeeper New Member

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    Feb 23, 2004

    Thanks for the info guys.

    Follow up question:

    I am being told that the receiver actually buffers 1-5 seconds of video before it displays it. They are talking about all regular DBS receivers (not dvr, pvr, tivo) that sit on top of our TVs. Just wanting to know if this is true and how it is being done. They said for example; the Dish 322, 111 and 301 do this.

    Thanks.

    Richard
     
  19. Codeman00

    Codeman00 Godfather

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    Well since you asked...I will explain.

    I'm a Purdue grad and a big college basketball and football fan. I live about 700 miles from campus and about 400 miles from my brother who will be attending there next year. We both watch the games on TV while sometimes staying on the phone the entire game...but only when the games are in sync. When they aren't, we can talk only during a timeout because he will know what happens 3-5 seconds before me.

    When I was on cable, this never happened..but now that I'm on satellite and not watching a HD channel, then there is lag.

    I don't really care that you don't understand my TV viewing habits ....I just would like to know why the lag happens.
     
  20. ypsiguy

    ypsiguy Icon

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    Ditto here between my 501 and 301, only a slight echo on audio, therefore a fraction of a second delay. Hopefully there will be no echo after I replace the 301 with the 510.
     
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