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Internal difference between a DC passing and DC blocking splitter

Discussion in 'General Satellite Discussion' started by slice1900, May 13, 2013.

  1. slice1900

    slice1900 Well-Known Member

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    Feb 14, 2013
    Iowa
    Can anyone explain or point to some resources that detail the exact difference between a DC passing and non-power passing splitter?

    I know there are some electronic components used in the splitter to accomplish the splitting (resistors, transformers, something like that, I'm not an EE guy) and the losses from those components are the reason signal outputs are typically between 3.5db and 5db lower on each side, depending on frequency, versus the 3db loss you'd see if the splitter was "perfect".

    How is the splitting of the DC voltage accomplished? Is that passing through some electronic components as well, or does the DC signal component bypass all that, and behave pretty much as if you'd used a "Y" adapter with one input and two outputs?
     
  2. P Smith

    P Smith Mr. FixAnything

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    Jul 25, 2002
    W.Mdtrn Sea
    usually blocking path(es) has ceramic capacitor of a few pF
     
  3. gov

    gov Legend

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    Jan 11, 2013
    Inductors, yada, yada, yada, reluctance, etc. back EMF, whatever.



    :coffee
     
  4. gov

    gov Legend

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    {sparky school was 30 years ago, I'm having a good day to remember that much}

    {there is also something to do with blue stinky magic smoke}


    :eek2:
     
  5. P Smith

    P Smith Mr. FixAnything

    21,341
    127
    Jul 25, 2002
    W.Mdtrn Sea
    [it's too early to drink booze :( and post the gibberish]
     
  6. gov

    gov Legend

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    Jan 11, 2013
    12 stepper, I'm like that all the time now . . .


    :righton:
     

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