Part 3 - RoadTest the InfiniiVision 1000 X-Series Oscilloscope DSOX1102G

RE: Part 3 - RoadTest the InfiniiVision 1000 X-Series Oscilloscope DSOX1102G

beacon_dave — Wed, 02 Aug 2017 20:56:33 GMT

[mention:20de3d39ce8d4f81acb3a7a4693cbeac:e9ed411860ed4f2ba0265705b8793d05] - if you've not already found it, the digital voltmeter feature is a free download which can be found on the Keysight Technologies website at:

Download FREE Digital Voltmeter (DVM) for 1000 X-Series Oscilloscopes | Keysight (formerly Agilent’s Electronic Measurem…

RE: Part 3 - RoadTest the InfiniiVision 1000 X-Series Oscilloscope DSOX1102G

jc2048 — Mon, 15 May 2017 09:16:59 GMT

Good review. I like the frequency response analysis - that looks like an excellent tool for education.

"The significant region of the gain and phase remained the same, while the high frequency region of noise showed different behavior. This confirmed to me that the noisy behavior is due to noise and noise coupling in my breadboard circuit."

An alternative theory might be that the circuit output signal is getting so small at that point that the scope is struggling with its own input noise. If the reference level is 200mV, and you've got a circuit attenuation of a hundred or more, and you're using a x10 probe, the actual level at the scope input is down below a millivolt.

A possibility for improving the software would be to show on the display the limits, for the reference level chosen, outside of which the measurement wouldn't be reliable.

RE: Part 3 - RoadTest the InfiniiVision 1000 X-Series Oscilloscope DSOX1102G

ciorga — Sun, 14 May 2017 21:14:53 GMT

Hi Gerald,

I have emailed you directly four screenshots as saved by the oscilloscope on the USB drive. The brightness and contrast is the default that came setup on the oscilloscope.

Best Wishes,

Cosmin

RE: Part 3 - RoadTest the InfiniiVision 1000 X-Series Oscilloscope DSOX1102G

ciorga — Sun, 14 May 2017 18:00:46 GMT

Thank you Shabaz and John for the nice comments. Shabaz, it looks to me that the DSOX1102G does multiple self adjustments during the frequency analysis. I can see in the video that I posted that at the beginning the output signal is clipped and then it goes through a sequence of self-adjustments (I can even hear various "clicks" inside the oscilloscope) until the signal becomes sinusoidal. I think that it may be a combinations of adjusting channels vertical scale and the amplitude of the frequency generator.

Cosmin

RE: Part 3 - RoadTest the InfiniiVision 1000 X-Series Oscilloscope DSOX1102G

shabaz — Sun, 14 May 2017 13:05:06 GMT

Hi Cosmin,

Nice write-up! That looks like an interesting feature. I'm wondering if it auto-adjusts the volts/div setting internally while it performs the analysis, because the charts show >48dB dynamic range (255 steps). Either way, a very nice feature.

RE: Part 3 - RoadTest the InfiniiVision 1000 X-Series Oscilloscope DSOX1102G

jw0752 — Sun, 14 May 2017 04:45:28 GMT

Enjoying your clear and relevant posts. Thanks for this great road test of the Keysight DSO

John

RE: Part 3 - RoadTest the InfiniiVision 1000 X-Series Oscilloscope DSOX1102G

ciorga — Sat, 13 May 2017 20:03:03 GMT

Thank you DAB, Enrico and Gerald for the nice comments about this blog post. To answer your question Gerald, this Keysignt DSOX1102G oscilloscope has a very sharp and crystal clear display, in my opinion sharper than the Tektronix TBS 1202B-EDU oscilloscope. The full-size screenshots show this clarity; however, when scaling down the pictures to insert them in the blog the clarity became a little blurry (even if I don't scale them the clarity degrades a little when inserting the pictures in the blog or in this message post). I can email you a screenshot file saved directly by the oscilloscope; I tried to find a way to attach it to this message but I couldn't figure out how.

Best Wishes,

Cosmin

RE: Part 3 - RoadTest the InfiniiVision 1000 X-Series Oscilloscope DSOX1102G

geralds — Sat, 13 May 2017 19:31:01 GMT

Hi Cosmin,

super report.

A question:

Is it possible to see the waveforms more sharply? Or is this noise true?

e.g the rectangles, the sinusoidal

Best Regards,

Gerald

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RE: Part 3 - RoadTest the InfiniiVision 1000 X-Series Oscilloscope DSOX1102G

balearicdynamics — Sat, 13 May 2017 18:59:40 GMT

Cosmin, a very good job this multi-part roadtest

Enrico

RE: Part 3 - RoadTest the InfiniiVision 1000 X-Series Oscilloscope DSOX1102G

DAB — Sat, 13 May 2017 18:20:01 GMT

Excellent test report.

Very cool product.

DAB