Products > Test Equipment

Siglent SGD2042X rotary encoder poor performance

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joeqsmith:
Viewer posted a comment suggesting that the Siglent doesn't maintain the correct version numbers in their released firmware.  The suggestion is to program the Arb with the latest firmware even though it appears to already have the current release.   Its the pinned comment if interested.

Is there a way to save the firmware from the Arb to the USB stick before loading the new?  If indeed they are correct, the last thing I want to do is destroy the evidence.

Fungus:
Wonder where the Siglent reps are...?

joeqsmith:

--- Quote from: Fungus on March 24, 2022, 04:43:25 pm ---Wonder where the Siglent reps are...?

--- End quote ---

In the OP, seems they tried to contact them a year ago. 


***
SP

joeqsmith:
It looks like the video satisfied the group suggesting to reprogram the same firmware into the arb.   

Interesting how many suggest not using the encoder or turning it slower.   Looking at my home TE, much of it that has a dial offers a recess to insert your finger (see attached), or they have a suicide knob on them.   The Siglent doesn't have this feature so my finger tends to slip. 

When I run a signal generator standalone, it's not uncommon that I will use them dynamically.  I may sweep the frequency, duty cycle, voltage by hand for a quick test.  That encoder needs to be smooth and I don't want to think about it skipping and flipping directions.   It's difficult to create a linear ramp when the variable you are adjusting is changing directions.   

I've shown where even at home I will use LabView to automate my equipment.  That's great for some experiments but there are cases I just want a quick and dirty source.  The encoder really shines as a UI for these applications (there's a reason for them).   Siglent just doesn't seem to understand how they are used.     

For those suggesting to just buy better equipment,  we do.    It's not mine and I will not be pulling it apart to show the internals or attempting to hack it.   
**
poor wording.

joeqsmith:
Talking with a friend of mine, they also have the same arb and it too has the same encoder problem.


--- Quote ---SDG6000X shows the same crappy encoder behaviour.
--- End quote ---

Plenty of people commented how they do not have a problem with the encoder.   I was thinking to get a higher end Siglent for my home use but from the photos, I assumed it was the same encoder and your comment gave me no confidence that a new one would be any better.   I could get one and then modify it but one person wrote me about all the firmware problems they had ran into with theirs.     

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