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EEVblog => EEVblog Specific => Topic started by: nitro2k01 on November 13, 2012, 06:51:50 pm

Title: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
Post by: nitro2k01 on November 13, 2012, 06:51:50 pm
EEVblog #384 - Agilent 4000X Oscilloscope Teardown (https://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 13, 2012, 07:37:47 pm
4 channel USB hub with one connected to the touchscreen.
Title: Re: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
Post by: kg4arn 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.
Title: Re: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
Post by: JackOfVA 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
Title: Re: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
Post by: ejeffrey on November 15, 2012, 07:47:21 am
Quote from: JackOfVA 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?

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 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

Title: Re: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
Post by: albertr on December 02, 2023, 02:43:58 am
Anyone knows the location for TX/RX pins of the serial UART used as a boot console on 4000X series scopes?

Thanks,
-albertr