FFT block size

Stefan Jaik

Posted on 09.12.2013 19:41
We want to use FFT-Analysis with out Sirius-HS Systems. With 1MHz Samplingrate and the max. selectable Blocksize 64k the FFT-Frequency resulution ist only 7,6Hz. Not enough for out test enviroment. Could you implement Blocksizes of 131k, 262k and 524k to get a better FFT-resolution? 
Marjan Grilj

Posted on 10.12.2013 07:36
Hello Stefan,

It's possible to define FFT math channel that have this option. Go under Math > Spectral analysis > FFT and define needed resolution.

Best regards
Stefan Jaik

Posted on 12.12.2013 20:43
Hello Marjan, thanks for reply.
Yes, the FFT math setup works. But mainly we use FFT for a quick check (eg. 50Hz noise check) in a active measurement. It would be fine to do this without leaving measurement. Is there a chance to select larger Blocksizes in the measurment FFT Window?
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