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Siglent Technologies SDS1202X-E 200 mhz Digital Oscilloscope 2 Channels
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13hm13:
I purch'd this scope about 2.5 years ago. Haven't used it much because I'm a bit addicted to my old analog Tek 465.

That said, if any of you own this scope, share your thoughts. For example, how does it compare to similar priced Rigol models? How about day-to-day reliability?
Please share any tips and tricks with this scope.

One strange "anomaly" (??) of the Siglent I ran into was that if I swapped my probe from Ch1 to Ch2 -- the probe tips and gnd on the same DUT -- Ch2 did not lock trigger. I don't know how to do that.
If I have both Ch1 and Ch2 probes -- say comparing two logic-chip outputs -- then Ch 2 does lock (as does Ch1).

Have look at this waveform displayed on my Siglent. It is MCK output from an audio USB-I2S adapter (see bottom photo; the Owon meter was used in another experiment). I am using the alligator probe for gnd.

Anything look unusual?






coromonadalix:
Scope fFirmware is up to date ?
TheDefpom:
If you are triggering from a different channel then you need to select which channel that is in the trigger menu.

Also set the trigger level to get the best rising edge, where it is in the image could result in irregular triggers.
BillyO:
You also shouldn't really switch probes between channels because they will need to be re-compensated.  Probe compensation is channel is specific to each channel.

Wouldn't make a huge difference, but for the sake of best performance and all ..
13hm13:

--- Quote from: TheDefpom on February 17, 2023, 09:34:16 pm ---If you are triggering from a different channel then you need to select which channel that is in the trigger menu.

Also set the trigger level to get the best rising edge, where it is in the image could result in irregular triggers.

--- End quote ---
Yeah, for some reason I can't permanently set EDGE trigger for both channels. If I turn on edge for one channel, the other channel trigger is null. And so I must manually do it. Weird.

Also very weird is the cold start ...

If I've had the unit off -- unplugged - - for, say  over a few hours or longer, and re-start, I have very rough 15-20 minutes of 'settling-in time'. Nothing locks (trigger), As I rotate the vertical or  horiz., or other buttons, I can monetarily see the correct signal.  This even applies to something as simple as the 1k square wave /ground tab on the from. The first test of 'scope reliability.
And then -- after 20 min or so -- normal. Very weird!
I have not used this 'scope enough to establish some sort of what-is-normal behavior. And of course, the 'scope is out of warranty! Life lesson: open and test your new instrument thoroughly and extensively upon delivery! It might come outta the simulation factory ... possessed.
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