Author Topic: EEVblog #384 - Agilent 4000X Oscilloscope Teardown  (Read 6812 times)

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Offline nitro2k01

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EEVblog #384 - Agilent 4000X Oscilloscope Teardown
« on: November 13, 2012, 06:51:50 pm »


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
Whoa! How the hell did Dave know that Bob is my uncle? Amazing!
 

Offline SeanB

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Re: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
« Reply #1 on: November 13, 2012, 07:37:47 pm »
4 channel USB hub with one connected to the touchscreen.
 

Offline kg4arn

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Re: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
« Reply #2 on: November 13, 2012, 10:58:11 pm »
What's the switch for (S3400) @ 8:03?

OOPS  I see it now on the back panel of the scope.
« Last Edit: November 13, 2012, 11:36:47 pm by kg4arn »
 

Offline JackOfVA

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Re: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
« Reply #3 on: November 14, 2012, 06:40:37 pm »
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
 

Offline ejeffrey

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Re: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
« Reply #4 on: November 15, 2012, 07:47:21 am »
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 :)
 

Offline wrieken

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Re: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
« Reply #5 on: February 13, 2019, 04:59:31 pm »
Hi,

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

Thanks,

William

 


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