Author Topic: EEVblog #384 - Agilent 4000X Oscilloscope Teardown  (Read 11398 times)

0 Members and 1 Guest are viewing this topic.

Offline nitro2k01Topic starter

  • Frequent Contributor
  • **
  • Posts: 843
  • Country: 00
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

  • Super Contributor
  • ***
  • Posts: 16272
  • Country: za
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

  • Supporter
  • ****
  • Posts: 271
  • Country: us
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

  • Supporter
  • ****
  • Posts: 350
  • Country: us
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

  • Super Contributor
  • ***
  • Posts: 3686
  • Country: us
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

  • Contributor
  • Posts: 12
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

 

Offline albertr

  • Regular Contributor
  • *
  • Posts: 56
Re: EEVblog #384 - Agilent 4000X Oscilloscope Teardown
« Reply #6 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
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf