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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics. |
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In Reply to: Re: test for transients posted by 13th Duke of Wymbourne on July 18, 2003 at 21:29:55:
Hi Duke,10-4 on the settling time. Ran into that problem before.
The window is highly dependent on the frequency. I use a 1 uS
step size and a window of .2 seconds. This works quite well
with a 525 Hz base frequency for the square wave and a 2500 Hz
frequency for the little sine wave.To get down to -150dB, also need to check the result and see
that the start and stop times of the window occur at exactly 0.
If there is *any* DC offset, then make sure the start and stop
times are exactly whatever the DC offset is. By exactly, I mean
down below uV's.Starting to look at things now. I see what you mean about IM.
The IM products are *way* stronger than the harmonics of the
little sine wave. Its like looking at seedlings when there
is a forest (IM) around.
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Follow Ups
- Re: test for transients - mfc 07/18/0322:14:39 07/18/03 (3)
- Re: test for transients - 13th Duke of Wymbourne 21:05:22 07/19/03 (2)
- Re: test for transients - mfc 17:01:29 07/22/03 (0)
- Re: test for transients - john curl 15:09:36 07/21/03 (0)
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