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RE: What do you think?

Hi Bill
It's possible he measured in a bunker or basement but i have never seen a "normal house" measure more slope than about 9dB/oct and one was as low as 4dB/oct.
What i see often enough though is people using sequence based measurement systems that show extra an lf plateau like is shown.

When one see's the lf response curve rolling off and then flattening out, it is most often been the noise floor, not a long enough gate time or changes when say 5 measurements are averaged. Each time you double the number of measurements being averaged, you reduce the noise uncertainty by 2. Remember these sequence based systems do not have good noise immunity compared to TDS.



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  • RE: What do you think? - tomservo 05:33:12 02/12/16 (1)

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