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

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

  1. P Smith

    P Smith Mr. FixAnything

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    well... at least in 1650-2150 range the Ka tpns are recognizable … what sat ?
     
  2. tdbone1

    tdbone1 Member

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    you mean 99 or 103?
    i not sure how to tell.
    im still not sure if im supposed to be on 79degree skew on its reading or if it should be 101degrees.
    i know dishpointer says 79degrees as thats where i got the number but does dishpointers numbers (for my zip code) actually mean for me to put 79 on the skew settings on the dish?
    i mean 90degrees = no skew.
    90degrees - 79degrees = 11degrees diff.
    i do believe i need to adjust the skew 11degrees off 90 but couldnt the 11degrees mean 101degrees on the slimline dish physical readout ot does it mean i need to set it to actually 79degrees on its readout?
    btw i will be getting a receiver within the next week or 2 :)
    at least for the dish aligning part
     
    Last edited: Feb 26, 2019
  3. P Smith

    P Smith Mr. FixAnything

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    skew angle is easy to comprehend,
    if you stay behind a reflector looking to sats;
    now (better get your cellphone with some dishpointing app) imagine a line of Clark Belt [CB] with sats;
    narrow your vision to that part of CB where are the three sats reside;
    make imaginary line from sat 101W to a south point on horizon;
    now do same imaginary line of vertical axel of LNBF;
    the lines must goes same angle
     
  4. Mar 3, 2019 #224 of 260
    tdbone1

    tdbone1 Member

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    i ordered:
    (4) MSPLIT2R1-03 to replace my (2) MSPLIT8R1-01 to save some space.
    (1) Zinwell WB68 6x8 Multi-Switch to replace my SWM16.
    couldnt get the HR24 receiver ordered yet.
    just have to wait a little bit more on that.
     
  5. Mar 3, 2019 #225 of 260
    P Smith

    P Smith Mr. FixAnything

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    no worry, we will wait
     
  6. Mar 3, 2019 #226 of 260
    tdbone1

    tdbone1 Member

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    when the 4 (2 way splitters) get here im going to put one rtlsdr dongle on each of the lnbf outputs to the swm16 and then im going to use my limesdr-mini to sweep from 200mhz to 2200mhz so i will be able to disect the spectrum pretty good.
    not sure why i ordered the WB68.
    :)
     
  7. Mar 5, 2019 #227 of 260
    tdbone1

    tdbone1 Member

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  8. Mar 6, 2019 #228 of 260
    P Smith

    P Smith Mr. FixAnything

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    we are waiting ...
     
  9. Mar 6, 2019 #229 of 260
    dreadlk

    dreadlk Hall Of Fame

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    If I am understanding the SWM channelized system correctly you don’t really have full control of what transponders will be assigned to what SWM channels.
    At least with the wb68 you will always know what transponder you are looking at.
     
  10. Mar 6, 2019 #230 of 260
    veryoldschool

    veryoldschool Lifetime Achiever Staff Member Super Moderator DBSTalk Club

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    For?

    Grass to grow?

    Paint to dry?
     
  11. Mar 6, 2019 #231 of 260
    P Smith

    P Smith Mr. FixAnything

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    sea waves watering the shore...
     
  12. Mar 6, 2019 #232 of 260
    tdbone1

    tdbone1 Member

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    just ordered the HR24-500 off ebay and its coming with (2) sup-2400's
    the SWM16 is probably going to be the best to use when a PI29 is connected directly to the DC input only and leave the SWM port 1 and SWM port 2 disconnected.
    i then just use splitters in between the 4 lnb ports and the 4 swm16 ports.
    to my understanding the WB68 can not be used with a power inserter.
    it has to be powered by a receiver?
    anyhow that problem should be covered soon when the hr24 gets here.
    in the end i believe the hr24 will be used only to precisely align the dish then pull it off and use just power inserter, swm16 and a 4 output lnbf.
    i was examining the signals today with my other rtlsdr devices and i think i have 99, 101 and 103 set perfectly so the hr24 wont be to much use right now.
    what im waiting on (was supposed to be here today) is the other (3) 2-way splitters. i did receive (1) and i sure like it better then the (2) 8-way splitters i have now.
    when i do have in my possesion the (4) 2-way splitters im going to use (2) R820T2 on the "Ku" bands for even and odd transponders (which i seen already and they look great).
    for Ka-Low and Ka-Hi do they also have even and odd transponders or is that only for Ku?
    the voltages and polarities is just for controlling Ka-Low and Ka-Hi and not for even and odd transponders right?
     
  13. Mar 6, 2019 #233 of 260
    slice1900

    slice1900 Well-Known Member

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    Yes WB68 is powered by a receiver, but any power inserter from 12 - 24 v (probably higher like the SWM16's PI-29 would work, but no promises) plugged into one of its outputs will power it.
     
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  14. Mar 6, 2019 #234 of 260
    tdbone1

    tdbone1 Member

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    now this picture's spectrum is different then when i had two sdr dongles hooked up earlier.
    i had some IF in the low area of the spectrum between 200mhz and 700mhz. so im not sure why it is disappearing with my limesdr-mini.
    here is my latest pic of only the limesdr-mini
    [​IMG]
    i will add a picture of what im seeing when i use 2 sdr devices at one time. looks alot different.
     
  15. Mar 6, 2019 #235 of 260
    tdbone1

    tdbone1 Member

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    this is with (two) R820T2 sdr dongles hooked up at same time
    when spectrum has change i moved both dongles over at same time
    13v and 18v
    [​IMG]
    13v22khz and 18v22khz
    [​IMG]
     
    Last edited: Mar 7, 2019
  16. Mar 7, 2019 #236 of 260
    tdbone1

    tdbone1 Member

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    i have a Directv SWiM 21v PI also i could use or would the 29v PI be a better choice?
    "Output Ports" = the (non-lnbf ports)?
    "Output Ports" = the 8 ports that would connect directly to the receiver?
     
  17. Mar 7, 2019 #237 of 260
    tdbone1

    tdbone1 Member

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    ok im not sure whats going on here.
    is my limesdr-mini (top) broken below 1ghz?
    [​IMG]
    top = limesdr-mini
    middle = r820t2
    bottom = e4000
    all on same MSPLIT8R1-03 which is connected between lnbf and swm16 on the 13v22khz port
    the other 3 swm ports (18v22khz, 13v and 18v) are connected to the lnbf normally.
    only the 13v22khz has the splitter with 3 sdr dongles coming off it.
     
  18. Mar 7, 2019 #238 of 260
    P Smith

    P Smith Mr. FixAnything

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    First, I would rent for a day or a week normal SA, say Avcom PSA-37D, would take pictures of each of 6 modes in the three ranges (no RB): LHCP/RHCP 250-750/950-1450/1650-2150, then label them by sats/polarity and keep as reference base.
    Then will mark SB [spotbeam] tpns as many will not visible at your place.
    After that see how you could define pictures of your SDR boards...
     
    Last edited: Mar 7, 2019
  19. Mar 7, 2019 #239 of 260
    tdbone1

    tdbone1 Member

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    im already on it without the rental.
    it (looks) to me that when you add an sdr device (one at a time) to the splitter it is giving that device a different area of the spectrum.
    when my (3) other 2-way splitters get here today i will have (4) 2-way and (2) 8-way splitters total.
    i will then be able to test more as i have a total of 4 rtlsdr devices and 1 limesdr-mini
    i will then be able to know quite a bit more info and will post more findings.
     
  20. Mar 7, 2019 #240 of 260
    slice1900

    slice1900 Well-Known Member

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    Use the 21v PI. Connect it to one of the 8 ports that the receivers go to, those are the "outputs". The voltage it feeds in will allow it to send power to the LNB via the four "inputs" that connect to the legacy LNB. Feeding 21v into the outputs in this way will make it think it has a receiver connected which is asking for 18v no tone - the way the 13v/18v thing works is that anything over some middle voltage of 15 volts or so is considered "18v" and anything under it is considered "13v".
     
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