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  1. #1
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    Convert rad^2/Hz to dBc/Hz

    How do you convert rad^2/Hz to dBc/Hz ?

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    Ok, it's 10 log (rad^2/Hz)^2 / 2

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  2. #2
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    Re: Convert rad^2/Hz to dBc/Hz

    in general, a measure in dB is 10 log (A/reference A)
    so things like voltage would be 10 log (voltage/reference voltage)
    and things like power would be 20 log(power/power reference)

    you must use a reference (or at least an implied reference) because you cannot take the log of a unit
    log (volts) or log(meter) cannot be done - you can only take the log of a number.

    What is the c in dBc?

    rad is a dimensionless angle measure - that is, rad is an angle without a unit.

    i do not know what rad^2/Hz is
    it makes no sense to me to convert an angle to a dBc

    please provide context for the question

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    Quote Originally Posted by Puppet123 View Post
    How do you convert rad^2/Hz to dBc/Hz ?

    - - - Updated - - -

    Ok, it's 10 log (rad^2/Hz)^2 / 2
    i don't think so
    you cannot take the log of a unit
    please provide context - what are you doing that brought up this question?



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  3. #3
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    Re: Convert rad^2/Hz to dBc/Hz

    Phase Noise calculations - it's all normalized to per hz so it's fine.
    Last edited by Puppet123; 20th February 2020 at 02:07.



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