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SIGLENT SDS1102CML - First Impressions
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Pippy:
Just bought one of these scopes (the SDS1102CML) and it's not to bad I guess. Firmware could be better but se-la-vie.

They have a problem with their software channel filter, at lower frequencies rather than do proper low-pass-filtering it slightly rounds off the edges (which is correct) but then cuts the amplitude down (which is wrong).

This is looking at the scopes own 1kHz reference ..

illyesgeza:

Can anybody who has a SIGLENT SDS1102CML dso help me?
Please save the data from channel 1 from the scope's calibrator signal with the horizontal position on 250us in LongMem mode to a file
The file size would be 2M
I'd like to post it to me
Thanks
illyesgeza:
Look at this two signals. The difference is longmem on and longmem off.
800khz / 20khz = 40, but the samplingrate was 500KS/s and 25MS/s
25 / .5 = 50
There is a bug in the FFT calc.
Deckert:

--- Quote from: illyesgeza on July 09, 2013, 10:08:12 am ---Look at this two signals. The difference is longmem on and longmem off.
800khz / 20khz = 40, but the samplingrate was 500KS/s and 25MS/s
25 / .5 = 50
There is a bug in the FFT calc.

--- End quote ---

Agreed - I noted the same discrepancy in my review of the Siglent/Atten 'scope using the 3.x firmware. So this is an issue they did not fix in the 5.x firmware? When I tested this on the Rigol DS1102E, I noted that the Rigol simply switches back to short-mem "Normal" mode when you enter FFT mode.

--deckert
ChildOfVision:
Again, a few questions about SDS1072, not 1102, sorry (I believe those are 99% identical scopes anyway...):

1) How can I use RS232 for some practical, useful and fun (of course) things?

2) In order to use EasyScopeX, I have to download a huuuuge NI-VISA package  :((>600M?) - Easyscope is just a few MB, so how can I use this software with minimum additional software - what should I download?

What other software can I use with SDS? Can I use LabView (it already includes NI-visa) - is it better than EasyScope (I don't plan to do nothing special; to see waveforms on PC monitor, change colors of images, simple measurements (but on bigger screen :)), simple analysis. If it is better than ES, I will rather downl....  :-[ hmm... buy full version of LabView instead of ES+NI-VISA!

3) Does somebody know how to calculate/estimate number of waveforms per sec (I don't have any fancy equipment!)?

4) Can I kindly ask, if somebody has ECG simulation image (in scope's format) that I can put on USB-stick and see it on my scope, I will be veeery grateful if he/she puts that file here!?

TIA!
Child
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