Signal-To-Noise of Sweep

tomrbland

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Sep 21, 2022
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Is it possible to display the S/N of a sweep? I may not be looking in the correct place for the info! For example if I'm doing a sweep in a noisy location and I want to know how much I can trust a measurement it's very helpful to see the S/N. It's something I used to use in TuningCapture all the time but haven't been able to find in REW.
 

John Mulcahy

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Apr 3, 2017
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There isn't a measurement S/N figure, but you can see the spectrum of the background noise (captured just before the sweep starts) on the Distortion graph and if you display the IR with the dB axis option the noise floor is easy to see.
 

tomrbland

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Thanks. I'll stick to those tools. I find a S/N reading particularly useful when trying to get measurements of subs (or if I'm trying to work out if I can get a measurement in over the noise of a cherry picker....)
 
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