Would someone with a scientific calculator please check this figure?

Discussion in 'Pro Audio' started by Lorin David Schultz, Sep 16, 2006.

  1. +4dBV = +1.8dBm. Is that right? I don't have a scientific calculator
    so I had to rely on a GG search.

    --
    "It CAN'T be too loud... some of the red lights aren't even on yet!"
    - Lorin David Schultz
    in the control room
    making even bad news sound good

    (Remove spamblock to reply)
     
    Lorin David Schultz, Sep 16, 2006
    #1
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  2. Lorin David Schultz

    Eeyore Guest

    dBm into 600 ohms ? Definitely not.

    Start - Run - Calc seems to work for me !

    Try using dBu instead there's no confusion then.

    +4dBV = 1.585 V = +6.21dBu

    Graham
     
    Eeyore, Sep 16, 2006
    #2
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  3. Lorin David Schultz

    Scott Dorsey Guest

    Try %xcalc -rpn & instead. It's much nicer.
    --scott
     
    Scott Dorsey, Sep 16, 2006
    #3
  4. Lorin David Schultz

    Mike Rivers Guest

    Only if you know into what impedance the V is going into. Forget dBm
    unless you really know what you're talking about.

    My favorite calculator when I need to answer a question like yours on
    line is at:

    http://www.sengpielaudio.com/calculator-db-volt.htm
     
    Mike Rivers, Sep 16, 2006
    #4
  5. C'mon Mike, you know me well enough to know that I *never* know what I'm
    talking about. Besides, I... um, what was I talking about again?

    For some reason I always mix up dBu and dBm. I don't know why I have so
    much trouble with such a simple concept. I meant dBu.


    Cool! That's handy. Thanks for the tip.

    Thanks also to Don and Graham. I appreciate you spending your valuable
    time assisting a mathematically challenged dullard like me!

    --
    "It CAN'T be too loud... some of the red lights aren't even on yet!"
    - Lorin David Schultz
    in the control room
    making even bad news sound good

    (Remove spamblock to reply)
     
    Lorin David Schultz, Sep 16, 2006
    #5
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