Products > Test Equipment
Possible GW Instek GDS-1000B hack
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rf-loop:

--- Quote from: TK on May 01, 2019, 12:01:15 am ---I am not liking the refresh rate of the GDS1054B.  I am feeding an AM modulated signal and on both the Keysight 1000X and Rigol DS1054Z I can see a nice AM modulated waveform but on the GDS1054B I see single traces or at most 3-4 traces, but not the nice area filled trace like the other scopes.

The scope UI is very responsive like the Keysight, but I suspect the refresh rate is not near 50,000 wfm/s

--- End quote ---

Do you mean using time base setting for look AM modulated RF carrier waveform or for look signal LF modulating envelope. Bit different cases.
Then, what ever scope,  these up to wfm/s speeds are mostly valid only with some special settings and signals (including also Keysight).  Very easy true is 50, or 500 or 5000 instead of 50kwfm/s or what ever.

Other question is that how important is beautiful image vs image what still give enough  information about signal under test.

Also in many scopes need some "know your equipment" before can find most optimal settings. (as can see example in tens or hundreds of junktube  nonsense "reviews" when the author's self-criticism and knowledge is not enough to assess whether it is published for the whole world or not. The world is drowning in a shit and in "tube" a small good "golden" part need find from huge amount of waste.)



TK:
After the hack my GDS1054B is freezing when I try to execute Self Cal.  I connect the BNC cable from the CAL output on the back to CH1, press VERTICAL and it hangs.  Is anyone else experiencing a similar behavior?  My unit came with 1.23, downgraded to 1.12, hacked, then upgraded to 1.23

Signal Path Compensation runs perfectly.
Mortymore:
The calibration process will take some 5 minutes per channel, or so, and probably during calibration the scope may not respond to buttons pressed (just guessing here).
Have you waited longer than 5 or 6 minutes for him to finish calibrating one of the channels?
TK:
Yes, I waited for 20-30 minutes or more

EDIT: Downgraded to 1.12.  Still not working.  It might be the 300MHz uphack.  Is there any way to remove the licenses?
nctnico:
See: https://www.eevblog.com/forum/testgear/possible-gw-instek-gds-1000b-hack/msg2298513/#msg2298513
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