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HR34 Signal level Question

Discussion in 'DIRECTV HD DVR/Receiver Discussion' started by cbayus, Sep 29, 2012.

  1. cbayus

    cbayus AllStar

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    Apr 20, 2007
    Does the HR34 require a stronger signal than a HR20?

    The reason for this question is that I have an installer coming with a HR34 and another HD DVR along with an upgrade to SWM coming on Tuesday. I currently have a HR20 and a old Hughes legacy receiver hooked to a 5-LNB Slimline dish via a legacy multiswitch. I have levels varying from the low 80's to mid 90's on all the needed transponders.

    Thanks in advance.
     
  2. veryoldschool

    veryoldschool Lifetime Achiever DBSTalk Club

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    Dec 9, 2006
    SWiM works differently and it sounds like you'll be getting a LNB swap so he should realign the dish as part of it.
     
  3. cbayus

    cbayus AllStar

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    Apr 20, 2007
    They may swap the LNB or not,but I will be getting a SWiM16. 9 tuners in total. 1 HR34, 1 HR20-700 and 1 unknown HR2x HDDVR.

    The real question I guess is do SWiM systems require a stronger signal than the legacy.
     
  4. veryoldschool

    veryoldschool Lifetime Achiever DBSTalk Club

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    Dec 9, 2006
    9 tuners changes things.
    The SWiM has an AGC so the power level remains more constant and works with -15 dBm, to -45 dBm from the LNB.
    He should run the IV test before he leaves and if it passes, you'll be good to go. If he's got to call in for a waiver to get past it, I might have some concerns.
     
  5. cbayus

    cbayus AllStar

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    Apr 20, 2007
    OK thanks.

    Let me make sure I understand how this works. From the dish to the SWiM16 is one signal level. Then the SWiM16 acts as a repeater and a transverter of the dish signal to the SWiM channels that are sent the the receivers.This second one from the SWiM16 to the receiver is another signal level.

    Another question. Can you direct me to more information on the internal workings on how SWiM works. I've found general information but I would like to learn the more technical aspects.

    Thanks for your assistance.
     
  6. veryoldschool

    veryoldschool Lifetime Achiever DBSTalk Club

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    Dec 9, 2006
    Not sure the SWiM gets "spelled out" anywhere, but:
    Think of it as a "pre-tuner".
    The receiver requests a channel over the 2.3 MHz comm signal, and the SWiM tunes to it and sends it to the receiver in a 100 MHz bandwidth frequency [these range from about 974 to almost 1800 MHz]. When the receiver wants another channel, the SWiM tunes and sends it to the receiver on the same frequency as before.

    Once you get it installed, you'll be able to see an additional SAT screen for SWM, with nine "TPs", where the first is the guide data common to all, and the next eight are for the tuners.

    Your SWiM-16 has two outputs, so each will have the guide data & eight others.
     

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