EEVblog Electronics Community Forum

EEVblog => EEVblog Specific => Topic started by: nitro2k01 on November 14, 2012, 05:51:50 am

Title: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
Post by: nitro2k01 on November 14, 2012, 05:51:50 am
EEVblog #384 - Agilent 4000X Oscilloscope Teardown (http://www.youtube.com/watch?v=iUBb4S8LoO0#ws)

It's subtle, but I noticed you kept the video speed-up going through the boot process. And it still feels like it's taking forever. :-DD
Title: Re: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
Post by: SeanB on November 14, 2012, 06:37:47 am
4 channel USB hub with one connected to the touchscreen.
Title: Re: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
Post by: kg4arn on November 14, 2012, 09:58:11 am
What's the switch for (S3400) @ 8:03?

OOPS  I see it now on the back panel of the scope.
Title: Re: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
Post by: JackOfVA on November 15, 2012, 05:40:37 am
Is the reason for a higher quality time base to improve the jitter, not overall frequency accuracy? The worse the clock jitter the more trace to trace dispersion - maybe not important at 1 MHz but at 300 MHz a cycle is 3.3ns, so a jitter of 33 ps would cause 1% trace to trace shift.

Or is there some magic software inside the DSPs that averages out or compensates in some other fashion for time base jitter?

Jack
Title: Re: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
Post by: ejeffrey on November 15, 2012, 06:47:21 pm
Is the reason for a higher quality time base to improve the jitter, not overall frequency accuracy?

Maybe they decided that since they were adding the 10 MHz out it would be embarrassing if a $20k scope had a really crappy reference output :)
Title: Re: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
Post by: wrieken on February 14, 2019, 03:59:31 am
Hi,

Does anyone here know what probes are good (non-Keysight) for the Keysight MSOX4054A 500Mhz version?

Thanks,

William