Products > Test Equipment
Siglent SDS1000X-HD - Bugs and "features" thread.
tautech:
--- Quote from: uliano on November 12, 2024, 06:57:18 am ---I have latest and did self cal.
What's a default?
--- End quote ---
2nd row down middle button.
Screenshots and a description of settings and how to replicate are more helpful than a video where we can't clearly see the settings.
uliano:
Default 'll have to wait a few hours (I'm on my dayjob, now).
Settings are:
- all channels DC,
- 1 MOhm,
- 0.5 mv/div,
- 0V vertical offset (except for the moves I made in the video to offset C2 over and under 0 by a few hundreds microvolts),
- trigger is rising slope on C2 level + 400/500 microvolts. If I trigger on any other channel I get no events.
if I move the offset under or over 0V the spike disappears.
This happens more frequently after switching it on and becomes somewhat less frequent after a few hours of power on.
If I set C2 to AC it still happens but way less frequently, I even captured a single event while on GND.
The size of the spike is dependent on how many other channels are turned on. If I have only C2 or only 2 channels on the height of the spike is way lesser (but still captured by that trigger setting).
All other channels appear flawless.
tautech:
--- Quote from: uliano on November 12, 2024, 07:37:18 am ---Default 'll have to wait a few hours (I'm on my dayjob, now).
Settings are:
- all channels DC,
- 1 MOhm,
- 0.5 mv/div,
- 0V vertical offset (except for the moves I made in the video to offset C2 over and under 0 by a few hundreds microvolts),
- trigger is rising slope on C2 level + 400/500 microvolts. If I trigger on any other channel I get no events.
if I move the offset under or over 0V the spike disappears.
This happens more frequently after switching it on and becomes somewhat less frequent after a few hours of power on.
If I set C2 to AC it still happens but way less frequently, I even captured a single event while on GND.
The size of the spike is dependent on how many other channels are turned on. If I have only C2 or only 2 channels on the height of the spike is way lesser (but still captured by that trigger setting).
All other channels appear flawless.
--- End quote ---
Ch2 was set to Trigger so at max sensitivity you're triggering on noise.....nothing to worry about and the reason you are only seeing it on Ch2.
In the channel menu engage the 20 MHz BW filter and it will be gone...
uliano:
By setting the trigger on other channels (all other settings being equal) I've never seen *any* single spike. So no it is definitely something that's happening on the input circuitry of C2
AFAIR setting 20MHz BW doesn't eliminate the problem (confirmation this evening)
tautech:
--- Quote from: uliano on November 12, 2024, 08:01:53 am ---By setting the trigger on other channels (all other settings being equal) I've never seen *any* single spike. So no it is definitely something that's happening on the input circuitry of C2
AFAIR setting 20MHz BW doesn't eliminate the problem (confirmation this evening)
--- End quote ---
Okay, good info.
Run Self Cal again after appropriate warm up.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version