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SES 3

Discussion in 'Free To Air (FTA) Discussion' started by photoman76, Jan 3, 2013.

  1. photoman76

    photoman76 Thread Starter SatelliteGuys Family

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    It appears that SES 3 will finally replace AMC 1.
    SES has applied to the FCC to replace AMC 1 with SES 3.
    The application has not been approved yet, but SES has asked for expedited authority so I think they want to begin transition soon.
    Also, the filing indicates that ku on SES 3 will not be skewed like AMC 1 so the transition will take longer to finish.

    http://licensing.fcc.gov/myibfs/download.do?attachment_key=979353
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  2. Lone Gunman

    Lone Gunman Active SatelliteGuys Member

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    I hope this is correct as there's been a bunch of sports feeds there that I haven't been able to get without horking up everything else in the arc. I know a bunch of PPL have setup stationary dishes specifically for 103w Ku but I really didn't want to do that so I've just done without those feeds in the past. Be nice to be able to get them with standard skew settings.
  3. Tron

    Tron SatelliteGuys Family

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    Good news, thanks Photoman!
  4. photoman76

    photoman76 Thread Starter SatelliteGuys Family

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    Some details from the filing:

    "SES requests expedited Commission grant of this application to permit an orderly transition of customer traffic from AMC-1 to SES-3. Extra time is expected to be needed for this transition because AMC-1 and SES-3 have different Ku-band polarization characteristics."

    "Specifically, the AMC-1 Ku-band transponders have a polarization cant of 26 degrees. See 1994 GE-1 Order, 9 FCC Rcd at 1273-74, ¶¶18-19. In contrast, the SES-3 Ku-band transponders have horizontal and vertical polarization with no cant."
  5. Anole

    Anole SatelliteGuys Guru

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    Not sure I've heard anyone say "cant" in the last 20 years.
    Seeing it in writing is even more disturbing. ;)

    The auto spell checker wanted to argue about it, too. :)
  6. gpflepsen

    gpflepsen Supporting Founder Supporting Founder

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    And who thought, no, almost bet the farm that the cant would remain the same on the replacement sat? ;) This is good news!
  7. SatPhreak

    SatPhreak Active SatelliteGuys Member

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    I really hope that the skew will be "normal", I haven't set up a dedicated dish for 103w yet, but hopefully I'll get some NBC before winter ends.
  8. Anole

    Anole SatelliteGuys Guru

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    I can't believe they used the word: "cant" !

    (not to be confused with can't, which means: can not)

    At first, I thought Dictionary com didn't know the word.
    Then I scrolled down, and they do.
    It's is NOT a common word in American English, unless it's relegated to some specific niche.

    Here are some typical meanings that will make "cant" more clear.

    - tilt
    - pitch
    - slant
    - turn
    - tip
    - incline

    Or to be less obtuse, once SES3 is up, you won't have to skew your LNBF any more. :)


    Honestly, does anyone know where the term is commonly used?
  9. FaT Air

    FaT Air HOA Free Zone Pub Member / Supporter

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    Government forms?
  10. rgk

    rgk Member

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    It's a somewhat common term in rail and roadway design regarding banked turns.
  11. SatelliteAV

    SatelliteAV SatelliteGuys Family Pub Member / Supporter

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    Cant is also used in medical and engineering terminology (base word for cantilever?).
  12. phlatwound

    phlatwound FTA Bumpkin Pub Member / Supporter

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    I have never heard a good explanation as to why this sat's skew was out of whack to begin with...anyone know?

    And I have always heard the word "cant" used in reference to sawmill lumber here in Hillbillistan. Here is a description I found on the webbytubes:

    "A cant is a partially sawn log with at least one flat side. That is, you can have a one-sided cant (sawn on one side only and the other three sides still round), a two sided cant (sawn on two sides, usually opposite sides), three sided, and four sided."
  13. primestar31

    primestar31 SatelliteGuys Family

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    I believe they had a failure of the KU side antennas complete deployment, right after the sat was placed in orbit. So, they deployed partially, giving the odd skew.

    At least I think i read that somewhere.
  14. qwert1515

    qwert1515 SatelliteGuys TheList Staff Member HERE TO HELP YOU!

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    NewsTruck who worked in an uplink truck posted a while back about the skew:

  15. Jim S.

    Jim S. SatelliteGuys Family Pub Member / Supporter

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    The guy who works for SES who posts on the Fridge says that it was set at an angle as an attempt to combat rain fade. It didn't work.

    I don't know if I buy that. I can't imagine why a company engaged in the aerospace industry couldn't come up with enough computer power to simulate the effect rather than just going ahead and launching a satellite based on an unproven theory!
  16. primestar31

    primestar31 SatelliteGuys Family

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    Yet, we've had many a person that has said that a (small, lol) 1.2 meter dish, even with "normal" skew is capable of receiving even the skewed KU transponders perfectly fine.

    That being true, why would even larger uplink dishes care if the NEW satellite is deployed with normal skew? Is we see from the documents, it's going to have normal skew. So, something has to give. If it's an issue, there's going to be a big future for sat techs to re-skew a LOT of uplink dishes...
  17. SatelliteAV

    SatelliteAV SatelliteGuys Family Pub Member / Supporter

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    There will be many busy station engineers optimizing the feeds. A 26 degrees skew misalignment will certainly be adjusted.

    Quite a difference in link margins, uptime and reliability requirements between a downlink providing services for hundreds of thousands if not millions of viewers and that of a hobbyist.

    Once again, there is best practice operation and "it works so it must be right"... :D
  18. Panavision

    Panavision Active SatelliteGuys Member

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    Normal skew will be welcome! By the way, as a TV director, I sometimes deal with a canted shot as it pertains to a handheld camera angle. Also known as a dutch angle. Useful for concerts and wild things.
  19. Larobpra

    Larobpra Pub Member / Supporter Pub Member / Supporter

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    Normal skew will be great. I spent a while today changing LNBs and adjusting things to get Cozi and still have the RTV mux on 83 and others that I lost when I initially got Cozi to come in the other day.
  20. Tron

    Tron SatelliteGuys Family

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    Yep it will be great to skip the 'Ghetto Skew" adjustment when I want to look at COZI :) ...

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