12bit Rigol DHO800 Scope

rsjsouza

Joined Apr 21, 2014
382
Congratulations @nsaspook !

Believing that an oscilloscope at this price point will not have compromises is very naïve - the price and its overall performance is what makes this product attractive. Hopefully they honed the SW issues before this initial release (I admit their track record is not stellar in this, but there's hoping).

If it succeeds, Rigol will once again set the tone for the upcoming years in the entry level oscilloscope market - Siglent will have to work very hard to catch up.
 

ronsimpson

Joined Oct 7, 2019
2,796
At work I use scopes where a probe costs more than your new scope.

At home I have $500 used scopes that have worse specs. My scopes have slower sampling rate and less memory and less bits. As much as I like HP/Agilent/Keysight and Tektronix, this is a good choice for 500.
 

cmartinez

Joined Jan 17, 2007
8,123
NICE! ... I've always wanted a four channel scope ... although 100 MHz is on the low side of the performance I'd like to have. Then again, $500 bucks is very much worth the risk, especially for a RIGOL.
 

SamR

Joined Mar 19, 2019
4,913
Enjoy! I got my Siglent 2104X+ 4ch 8 or 10 bit 100MHz a year ago for slightly less (before tax) with the 50MHz built in AWG plus it does neat things like Bode plots. Only thing I wish it would have is a higher peak to peak output on its AWG. But I also have their 30MHz bench AWG that does 20Vpp and there are signal amplifiers if needed. Not doing anything that needs more than 30MHz but it can always be upgraded (or hacked). The Siglent does have the ability to do 16 channel logic IF you buy their wiring harness and Upgrade the firmware for it. Maybe one of these days... Much nicer than my starter Siglent SDS 1102CML+ 100MHz 2ch scope except that the last firmware upgrade for it magically turned it into an 1152CML+ 150MHz scope. Update us when it comes in with a report on it.
 
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tautech

Joined Oct 8, 2019
373
Enjoy! I got my Siglent 2104X+ 4ch 8 or 10 bit 100MHz a year ago for slightly less (before tax) with the 50MHz built in AWG plus it does neat things like Bode plots. Only thing I wish it would have is a higher peak to peak output on its AWG.
All inbuilt AWG's offer only limited amplitude yet X Plus AWG does have the 50 MHz claim to fame.
But I also have their 30MHz bench AWG that does 20Vpp and there are signal amplifiers if needed. Not doing anything that needs more than 30MHz but it can always be upgraded (or hacked).
Correct, SDG1032X can be convinced to become SDG1062X and few in this class can match either models risetime.
The Siglent does have the ability to do 16 channel logic IF you buy their wiring harness and Upgrade the firmware for it. Maybe one of these days...
There are DIY LA probe options for X Plus and as they are a passive probe assembly connecting into a PCI-e socket, none of the LA assembly is proprietary however the 10 way flat ribbon coax is very difficult to find.
As for the LA licensing, you have 30 trial uses after which this is also hackable. Search online for a Python script which creates unofficial official license codes. < Yes you read that right.
 

tautech

Joined Oct 8, 2019
373
True but he's no fly by night BS video guy, his opinions hold sway on test equipment because he's paid the dues of being around for a while and has the equipment and some expertise to back it up.
Edit/correction made.
More experienced engineers cringe at some of his work.
 

Thread Starter

nsaspook

Joined Aug 27, 2009
12,309
1695850783525.png
1695850814944.png
The VESA mount blocks some of the air-flow so I fixed that later with longer screws and plastic standoffs.
1695850898096.png
First boot with all the inputs and probes for testing.
1695850952204.png
A mess of probes for two scopes.
1695852714622.png
1695851033599.png
Spacers added to the VESA mount to improve air-flow.
1695851081099.png
External HDMI monitor display.
1695851134373.png
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.
1695853156762.png

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.
1695852542147.png
 
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cmartinez

Joined Jan 17, 2007
8,123
View attachment 303636
View attachment 303637
The VESA mount blocks some of the air-flow so I fixed that later with longer screws and plastic standoffs.
View attachment 303638
First boot with all the inputs and probes for testing.
View attachment 303639
A mess of probes for two scopes.
View attachment 303645
View attachment 303641
Spacers added to the VESA mount to improve air-flow.
View attachment 303642
External HDMI monitor display.
View attachment 303643
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.
View attachment 303646
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.
View attachment 303644
Showoff! :cool:
 

Thread Starter

nsaspook

Joined Aug 27, 2009
12,309
It decodes the FM80 oddball 9 bit serial correctly (the SDS 1202X-E doesn't have a 9 bit decode option) but has no CANBUS decode, yet (I hope).
1695859094357.png
1695859062356.png
 
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