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Products => Test Equipment => Topic started by: ice595 on January 15, 2016, 11:11:33 pm

Title: DS1054Z front end switching noise?
Post by: ice595 on January 15, 2016, 11:11:33 pm

So, I've got my Rigol DS1054Z a couple of days ago and hacked it to 100MHz.
As I was playing around with it, I discovered that the front end on all 4 channels seems to pick up a bit of noise.
I've disconnected all the probes and set coupling to GND and set 20MHz BW limit off.
it seems like channel 2 is "less" noisy that the others.
does anyone have this problem? ???

Title: Re: DS1054Z front end switching noise?
Post by: TheSteve on January 15, 2016, 11:29:11 pm

Its normal. The Rigol DS1054Z isn't perfect, but it was cheap...

Title: Re: DS1054Z front end switching noise?
Post by: gmb42 on January 16, 2016, 12:36:53 am

See http://www.eevblog.com/2014/04/10/eevblog-601-why-digital-oscilloscopes-appear-noisy/ (http://www.eevblog.com/2014/04/10/eevblog-601-why-digital-oscilloscopes-appear-noisy/) and https://www.eevblog.com/forum/testgear/mso1074z-s-14-months-after-purchase/ (https://www.eevblog.com/forum/testgear/mso1074z-s-14-months-after-purchase/) for more information.

Title: Re: DS1054Z front end switching noise?
Post by: Mechatrommer on January 20, 2016, 02:10:15 pm

my ds1054z arrived today... fresh unmodded 50MHz with limitation...
1st pic: before cal
2nd pic: after cal
same setting as OP... (except 2nd pic i forgot to reset to 1X)