12bit Rigol DHO800 Scope

Thread Starter

nsaspook

Joined Aug 27, 2009
16,328
Oh, it's for the Siglent, you threw me off track with that in the RIGOL thread
I was comparing the two for simple decodes in the beginning. Now the SIGLENT has another black-mark. :(

BTW there's a 'new' firmware for the DHO800 that magically alerted me on the upgrade menu. Don't upgrade if you have hacks. I don't so it's running here OK.
1706382015440.png
 

Wolframore

Joined Jan 21, 2019
2,619
I've just added a USB wifi dongle to my scope. It immediately found the update... very nice OTA update.

Here are the update notes:

v00.01.02.00.00 2023/11/2

1. Self calibration optimization update
2. Solve the problem of UltraLab startup connection failure
3. Solve the problem of failure to save waveform in wfm format
4. Add education model equivalent settings
5. Solve the problem of unresponsive touch on startup screen

v00.01.01.00.02 2023/09/12

1. Self calibration optimization update
2. Update Help Documents

Updating firmware does not affect any "unlocked" attributes
 

Thread Starter

nsaspook

Joined Aug 27, 2009
16,328
Just another DHO804 user here. I buy directly from a Chinese supplier, but it arrived without the rubber protectors on the BNC terminals, seems to be a new device with the 00.01.02 firmware, 12 hardware, and 2024/01/03 build.
Give us your review.
 

tautech

Joined Oct 8, 2019
498
Apparently the 12-bit Rigol lit the fire under Siglent and I just got their announcement of their new 12 bit scopes the other day. Competition at it best.
Well, officially the SDS800X HD 12bit range was released 28 Feb, a whole month ago, however finding them is becoming a bit of a lottery due to interest. US and EU were first to receive stock and the rest of us have just had to whistle while another production batch was run despite having orders in well before release date.
It's not like these just magically appeared as they have been in development for a while.
 

Thread Starter

nsaspook

Joined Aug 27, 2009
16,328
Well, officially the SDS800X HD 12bit range was released 28 Feb, a whole month ago, however finding them is becoming a bit of a lottery due to interest. US and EU were first to receive stock and the rest of us have just had to whistle while another production batch was run despite having orders in well before release date.
It's not like these just magically appeared as they have been in development for a while.
Thanks. Time to budget for another scope.
 

Sensacell

Joined Jun 19, 2012
3,785
The VESA mount blocks some of the air-flow so I fixed that later with longer screws and plastic standoffs.

First boot with all the inputs and probes for testing.

A mess of probes for two scopes.


Spacers added to the VESA mount to improve air-flow.
View attachment 303642
External HDMI monitor display.

Looks very good.
1 All interrupt triggers toggle the gpio pin.
2. Main processing run is high logic level. Every super-loop iteration sets the gpio pin low on exit and back high when it starts at the beginning.
3 and 4 are I/O signals.
Looking for program bottlenecks caused by interrupts or mainline programming from variations (gaps and changes in toggle densities) in the traces.


Everything works but there are some GUI and function quirks normally seen with 1.0 firmware. It's too early to really evaluate total functionality but I'm happy with it so far.
Looks like the future.

As these Chinese companies finally, slowly learn to do decent industrial design, their manufacturing power will rule the landscape.

The values is there.
 

Thread Starter

nsaspook

Joined Aug 27, 2009
16,328
Last edited:

Sensacell

Joined Jun 19, 2012
3,785
That would be nice but the industrial design, as usually, was IMO cloned from places like Tektronix.

But who cares?

I buy for value, I would LOVE it if they copied Tek's interface down to the last screw.
If the UI is great and it's 1/4 the price? done! sold!
 

Thread Starter

nsaspook

Joined Aug 27, 2009
16,328
But who cares?

I buy for value, I would LOVE it if they copied Tek's interface down to the last screw.
If the UI is great and it's 1/4 the price? done! sold!
"As these Chinese companies finally, slowly learn to do decent industrial design"

I'm just saying, that's not happening. It's a value priced clone like most of their products.

I've bought both and used both. The DHO is nice and I use it daily but it's not close to TEK in quality or total long term value.
 

Wolframore

Joined Jan 21, 2019
2,619

Thread Starter

nsaspook

Joined Aug 27, 2009
16,328
I like my DHO, it also cost much less than a Tek. I'm not sure that Sig and Rigol are really competing in the same market. I would take the DHO over a used CRT Tek any day.

Take a look at these:
https://www.teledynelecroy.com/oscilloscope/t3dso3000-series-oscilloscopes
https://siglentna.com/digital-oscilloscopes/sds5000x/

I'm pretty sure Siglent is being rebranded as Teledyne... they are capable of competing and designing good gear. It amazes me how much I get for $300 on a Sig or Rigol.
I have a rebranded Siglent from Teledyne, it's exactly the same scope and software with Teledyne branding and software locks. I used Siglent software on it for the MSO functionality.
https://forum.allaboutcircuits.com/threads/12bit-rigol-dho800-scope.195972/post-1868617
1711815234674.png
 

tautech

Joined Oct 8, 2019
498
I'm pretty sure Siglent is being rebranded as Teledyne...
Siglent have had a collaboration with LeCroy for at least 10 years and still do.
Some early products they developed together were never seen in the west as Siglents as LeCroy was given exclusive western marketing rights.
SDS3000 was an example, which later morphed into the improved SDS3000X version.

Rigol also had an early short term relationship with HPAK.
 

Sensacell

Joined Jun 19, 2012
3,785
"As these Chinese companies finally, slowly learn to do decent industrial design"

I'm just saying, that's not happening. It's a value priced clone like most of their products.

I've bought both and used both. The DHO is nice and I use it daily but it's not close to TEK in quality or total long term value.
I think it IS starting to happen! The Chinese are not dumb, they understand that the investment in design pays with a big returns - if its good. they are starting to really focus on developing thier design chops, when they do, watch out!
 

Thread Starter

nsaspook

Joined Aug 27, 2009
16,328
I think it IS starting to happen! The Chinese are not dumb, they understand that the investment in design pays with a big returns - if its good. they are starting to really focus on developing thier design chops, when they do, watch out!
No doubt about being smart but that means little in the semi market. Japan is smart but they are no longer the semi powerhouse they once were.

I'll just say the main problem is trust. Are they a trusted supplier that you could bet your company on, can you trust their long term availability and quality, is their supply chain stable, is the region geo-politically stable, etc ...
 

tautech

Joined Oct 8, 2019
498
I'll just say the main problem is trust. Are they a trusted supplier that you could bet your company on, can you trust their long term availability and quality, is their supply chain stable, is the region geo-politically stable, etc ...
Their trust in you or yours in them ?

After Siglent offered us NZ distributor in 2013 I can honestly say they give us all the support one could ask for.
Product reliability/warranty is near 100% and any problems or parts required are quickly delivered.
Supply chain is wonderful and when needed we can get stuff we don't normally stock in just 1 week.

Not having run a small company before 2013 their support and comms are excellent.
Do we see this from the majority of western suppliers ?
 

Sensacell

Joined Jun 19, 2012
3,785
Who needs trust when the stuff is so cheap it's disposable?
All it has to do is work for 3 years, have half decent performance and reasonably good industrial design.
 
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