sl3s + 21v pi + frequency sweep from 150mhz to 2150mhz

Discussion in 'DIRECTV General Discussion' started by tdbone1, Jan 21, 2019.

  1. tdbone1

    tdbone1 Member

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    what is the swim command to turn into sup-2400?
    toggle commands for polarity and ka/ku bands
     
  2. slice1900

    slice1900 Well-Known Member

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    How do you know? All we know is that there are four Ku tpns that carry it, but we have no idea what is or is not carried on the Ka tpns.
     
  3. slice1900

    slice1900 Well-Known Member

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    The SUP-2400 / BBC is controlled by DiSEqC, not SWM. It isn't used in SWM installs. I don't know that anyone has ever documented the command to enable/disable the inversion, you'd need to get a receiver that can operate in legacy mode and snoop the DiSEqC to find out.
     
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  4. P Smith

    P Smith Mr. FixAnything

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    If it is, then it would be simple research to reveal the DiSEqC cmds as I did for legacy WB68 what control 72W/95W inputs.
     
  5. P Smith

    P Smith Mr. FixAnything

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    Seen that Ka PIDs :p
    Actually, if you know how the FW meta info built... there are links from top (announcements) to control messages to FW data streams/PIDs. And there are no points to Ka sats/tpns/PIDs.
    Just in case, for further wandering: Ka tpns carry no APG SI tables , exclude a "beacon" PID with short info (sat/provider/tpn).
     
  6. P Smith

    P Smith Mr. FixAnything

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    It's more a transposition. Hence the name including LOF=2400 MHz to shift IF /VHF/UHF ranges.
     
  7. P Smith

    P Smith Mr. FixAnything

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    You din't pay attention to the count and tpn## … history of monitoring it does show it could be changed on-the-fly.
     
  8. P Smith

    P Smith Mr. FixAnything

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    same as for legacy: 13/18 VDC
     
  9. slice1900

    slice1900 Well-Known Member

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    Have YOU seen the Ka PIDs? To my knowledge, no one has ever locked onto Directv's Ka transponders to report what is found there. If you have, why have you never posted how you did it, what you found, etc.? If you haven't, you are just guessing what is there.
     
  10. slice1900

    slice1900 Well-Known Member

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    I'd consider it an inversion. The entire range 250 - 2150 MHz is inverted (as are all transponders) when the 2400 MHz LO is applied. The transposition is the goal/result, but it was caused by an inversion.
     
  11. P Smith

    P Smith Mr. FixAnything

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  12. P Smith

    P Smith Mr. FixAnything

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    May be you'll find answers in my memoirs :)

    Just for widening your knowledge I want to remind you about AMC patent by DTV.

    BTW, someone posted TSReader diagrams from mentioned tpns when we discussed comparison same HD channel's bandwidth between two providers 10 years ago or so
     
    Last edited: Feb 11, 2019
  13. tdbone1

    tdbone1 Member

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    This is what i ordered off ebay today.
    [​IMG]

    under $40

    can someone tell me if i will be able to put the lnb in different modes without the actual receiver?
    im talking about the 13v, 18v, and 13v22khz and 18v22khz
     
  14. dreadlk

    dreadlk Hall Of Fame

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    Sorry but there is no way you can put it in different modes without a receiver or an AIM meter. It's easy enough to do with a single port power pass dual splitter that goes up to 2150 Mhz.
    just connect the receiver to the power pass port and use the other port for your SDR.
     
  15. tdbone1

    tdbone1 Member

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    like with an HR-24?
    thats kind of what i been looking at an older receiver that uses the 250-750 sup-2400 and also 1650-2150 sup-2400 for ka-low and ka-high?
    if i get an hr-24 i think it will also work with my sl3s.
    the sl3k is what i just ordered.
     
  16. slice1900

    slice1900 Well-Known Member

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    Using 13v/18v and the same with 22 KHz tone you can access anything the LNB receives. There are no "different modes" for it beyond the four possible outputs from its built in multiswitch. Not sure why you bought a SWM16, that really isn't going to be of any use to you.
     
  17. P Smith

    P Smith Mr. FixAnything

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    yeah, the you new _legacy_ LNBF support 4 tuners and controlling by normal 13/18VDC & 22 KHz tone independently on each output;

    remember, Ka bands tpns will be in 250-750 MHz range (what is doesn't matter for using your LimeSDR device);

    if you like inverted range, then dissect commands controlling SUP-2400
     
  18. tdbone1

    tdbone1 Member

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    and 1650-2150 MHz also (for ka bands that is)?
     
  19. slice1900

    slice1900 Well-Known Member

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    Yes Ka lo (99cb & 103cb) is 250 - 750 MHz, Ku (101 and for the time being 119) from 950 - 1450 and Ka hi (99ca & 103ca) is 1650 - 2150 MHz.

    You don't have any need for the SWM16 or the SUP-2400 to access those with your SDR, you can connect it directly to the LNB and it will choose between the four polarities (shown on your SWM16) depending on the voltage & tone you provide.
     
  20. tdbone1

    tdbone1 Member

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    Jan 21, 2019
    You mean once i have a receiver?
    What will be default band and tone be with no receiver?
    What will the sdr see when i connect power inverter to swm16 and will the sdr connect to legacy port?
     

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