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Verify Power Amplifiers Distortion with FM Modulation Technique

Lambda

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Mar 22, 2020
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Thanks PMA. A lot of things to think about in this thread.
But i think FM testing in general is a good method to detect nonlinearety

(1kHz carrier modulated by 900Hz with modulation frequency 200Hz)
I hat do thinks ab this.
To me its 1kHz FM modulated with 200Hz and 90% or 900hz or modulation depth.
I know you said the same but with different words
 

BR52

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Apr 3, 2021
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"Think different" is my slogan as well. You know, I was born in 1955 ;).
I learned, only disscussions can avoid "tunnel effect". You are right in multi national teams language can be sometimes to harsh.
I am from Germany:facepalm:
 
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Dlomb11

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From an auditory point of view, all that "dirty" at high frequencies would theoretically be negligible. However I wonder, is it possible that a transducer (tweeter) introduces further IMD in audio band due to its non-linearity, when sourced with the amount of HF noise/distortion seen in these measurements?
 
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