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Author Topic: EEVblog #978 - Keysight 1000X Hacking  (Read 47395 times)

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Offline bitseeker

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #400 on: June 27, 2017, 07:44:30 AM »
That sounds like classic HP gear. You can push them beyond the specified limits, but there's no guarantee they'll deliver the stated accuracy when doing so.
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Offline Brumby

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #401 on: June 27, 2017, 09:35:34 AM »
But, you theoretically could get a "souped-up" WaveGen that has questionable specs.

This is an example of why I get a little hesitant about any field hacks.

I know the effort here is to try them out and characterize the result, but I always get a niggle in the back of my head that something unexpected will surface at a most inopportune time - and that it might not be obvious if it does.

Kudos to those making the effort, though.  It is really interesting and very educational about contemporary circuit design of such equipment.
 

Offline markus-k

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #402 on: July 03, 2017, 06:09:38 PM »
Maybe not directly related to the topic of this thread, but at least scope hacking related: Has anyone ever tried or investigated what it takes to get Linux working on this or any other Keysight scope? I couldn't find anything yet. The ARM chip should run linux no problem, of course there aren't any drivers for the ASIC etc. The usefulness could be questioned for sure, but at least it could be a fun project for us Linux fanboys.
 

Offline TK

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #403 on: July 06, 2017, 11:55:49 AM »
Hardware mod for CH2 is done.  200MHz using the software hack infiniivisionLauncher.exe from Secure.  It can get comfortably up to 200MHz and 215MHz is kind of the absolute max regarding frequency measurement.

I got an MSOX2004A the other day and I compared the modded EDUX to the MSOX2004A (software hacked to 200MHz).  The MSOX2004A can get up to around 350MHz.


What is is most important is the -3 dB point or the scopes rise time. The MSOX2004A should have a -3 dB point around 230 MHz.
Can you measure that on both? Feed in 1 Vpp with a 50 ohm termination and increase the frequency until you you get to .707 Vpp. The amplitude should also remain quite flat as the frequency is increased with no sudden peaks or drops.

edit - I should add that I believe it may be possible to get the MSOX2004A up to 500 MHz bw with some part swaps, this isn't confirmed though.
The EDUX with the DSOX1102G mods + software hack has the -3 dB point @ 220MHz.  It is not flat, after 100MHz amplitude increases slightly and the goes down slowly up to -3dB point
 

Offline Free_WiFi

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #404 on: July 24, 2017, 06:15:21 AM »
Im too much lazy to follow the entire post about this ,however my question is :
If i will hack my own x1000 scope ,then after this operation, the calibration would be alive in my scope or i will be obligated to re-calibrate it again ?
 

Offline TK

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Re: EEVblog #978 - Keysight 1000X Hacking
« Reply #405 on: July 24, 2017, 07:15:57 AM »
Im too much lazy to follow the entire post about this ,however my question is :
If i will hack my own x1000 scope ,then after this operation, the calibration would be alive in my scope or i will be obligated to re-calibrate it again ?
Factory or last user calibration will be OK.  But if for any of the reasons recommended by Keysight you need to perform self test or user calibration, you need to set the scope to EDUX mode (revert the 2 SMD resistors back to original values as shipped from Factory), then calibrate and reinstall the DSOX hack
 
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