Author Topic: New Rigol DS7000  (Read 43035 times)

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Offline mindy

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Re: New Rigol DS7000
« Reply #200 on: February 10, 2019, 12:34:34 pm »
Hello,

So far I'm happy with MSO7k performance & functionality, but I'm a bit concerned of my device calibration and wondering is this something what can be fixed by a Firmware upgrade or I should be filling a warranty card for my brand new scope :(
I'm unable to get a perfectly flat 1k square with included passive probes RP3500A, I'm getting a small dip at the beginning of each wave.
Can this be a source of a small overshoot observed on a signal generator?

When I tried a DIY 1k probe on a 50 \$\Omega\$ input with 1:20 attenuation I got a perfectly flat square wave.
Does anyone have a similar experience or can suggest if it's still in a acceptable error margin or should I be concerned and send it for a repair?
BTW tried to re-calibrate multiple times but this does not helped
« Last Edit: February 10, 2019, 07:29:15 pm by mindy »
 

Offline Fungus

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Re: New Rigol DS7000
« Reply #201 on: February 10, 2019, 11:15:40 pm »
I'm unable to get a perfectly flat 1k square

I'd say that was due to the probing technique, nothing to do with the 'scope.

Can this be a source of a small overshoot observed on a signal generator?

What does a piece of 50 Ohm terminated coax cable give you?

should I be concerned and send it for a repair?

No.
 

Offline mindy

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Re: New Rigol DS7000
« Reply #202 on: February 11, 2019, 10:55:33 am »
I'm unable to get a perfectly flat 1k square

I'd say that was due to the probing technique, nothing to do with the 'scope.

I've tried to use a spring for my probe ground to minimise signal ringing on measuring signal from my integrated AWG what made little to none effect.
I saw very similar result (overshoot) on a different (external) signal source as well.
But the most important is a compensation 1k square wave which clearly shows a dip and can not be fully compensated.
This should eliminate an inductive loading from the equation as compensation signal ground is connected internally.
Obviously I'm not going to solder my probe tip to compensation clip for a better contact, but I did my best to make sure that it has a good contact.
Any further tips to try before concluding that either Probe OR Scope is defective?

Can this be a source of a small overshoot observed on a signal generator?

What does a piece of 50 Ohm terminated coax cable give you?

As I mentioned I tried a quick test (1k 0.25W resistor directly connected to compensation signal & Channel 1) and I got a perfectly flat square wave. Then I'll have more time I'll make a bit more robust probe with compensation and parasitics taking into account. Differential probe would do even better. But my concern right now is about 1M ohm range / included Probes quality.
 

Offline nctnico

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Re: New Rigol DS7000
« Reply #203 on: February 11, 2019, 12:09:13 pm »
You can try a coax cable and a 50 Ohm feed-through terminator. A 1M input usually has various frequency cross-over points which need to be adjusted. Perhaps you are seeing the crossover between the LF and HF path of the 1M input. The 50 Ohm input path may be entirely different.
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 

Offline KlausF

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Re: New Rigol DS7000
« Reply #204 on: February 11, 2019, 01:08:11 pm »
Nice device, but imho way too expensive, regrettably.
 

Offline Fungus

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Re: New Rigol DS7000
« Reply #205 on: February 18, 2019, 12:41:49 pm »
This is most likely a product of a Chinese company.

Yes, it's labelled on the front, "Rigol"

https://en.wikipedia.org/wiki/RIGOL_Technologies
 

Offline Karel

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Re: New Rigol DS7000
« Reply #206 on: February 18, 2019, 01:58:40 pm »
The difference between theory and practice is less in theory than
the difference between theory and practice in practice.
Expensive tools cannot compensate for lack of experience.
 

Offline swansonbroth

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Re: New Rigol DS7000
« Reply #207 on: May 16, 2019, 06:21:25 am »
Hi there,


is there a way to get all the options and a bandwith upgrade up to 500 MHz for my DS7014 over a GEL File?
 

Offline tv84

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Re: New Rigol DS7000
« Reply #208 on: May 16, 2019, 08:55:13 am »
Use the same method as in the MSO5000 thread. Just need to craft the correct 7000 patch.
 

Offline swansonbroth

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Re: New Rigol DS7000
« Reply #209 on: May 16, 2019, 09:06:09 am »
@tv84

did you have a workaround or how is the procedure?
 

Offline tv84

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Re: New Rigol DS7000
« Reply #210 on: May 16, 2019, 12:48:49 pm »
did you have a workaround or how is the procedure?

I didn't do any patch for the 7000. If anyone wants to create the patch, I can provide the bytes to be changed.
 

Offline wat

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Re: New Rigol DS7000
« Reply #211 on: May 18, 2019, 04:47:25 pm »
Hello all,
something similar to the previous post, but not necessarily locking it to a GEL file: what's the best way to enhance ;) a MSO7014? (FW 00.01.01.07.01)
I read the "Hacking the MSO5000" forum, all of it.
Now, having the ssh enabled (root/root), I would think the -fullopt should be easiest way, and I can see in the "start.sh", line 82, the flamingo app being launched:
Code: [Select]
/rigol/flamingo_console $PowerOn  -wpu_compress &
shall I just add the -fullopt there? Will it work?

Otherwise I don't think I have enough experience to create a GEL file myself to patch the app,
but I'll be happy to move on another forum ("Hacking the 7000"?) and provide assistance to someone more capable and create a tutorial for it.

Thanks
 

Offline rsjsouza

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Re: New Rigol DS7000
« Reply #212 on: May 19, 2019, 10:11:34 pm »
what's the best way to enhance ;) a MSO7014? (FW 00.01.01.07.01)
Sell it and buy a used DSOX3014? :-DD

(Sorry, I really couldn't resist the opportunity or, as we say in my home country: we lose the friend but don't lose the joke)
Vbe - vídeo blog eletrônico http://videos.vbeletronico.com

Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 
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Offline KlausF

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Re: New Rigol DS7000
« Reply #213 on: June 08, 2019, 10:17:58 pm »
Too tired for reading so much. Waiting for a video review.
 

Offline tv84

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Re: New Rigol DS7000
« Reply #214 on: August 20, 2019, 08:27:52 pm »
Just tested:

A fresh fully licensed MSO7000 with the latest v00.01.01.09.02 FW doesn't show any sign of working with the JITTER/EYE options!!

What a mega bummer!!!  :palm:  :palm:

Even the MSO5000 shows some signs of JITTER based on the MSO8000 developments...


Maybe this 7000 thing is dead and it doesn't even know it!
 
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Offline tv84

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Re: New Rigol DS7000
« Reply #215 on: August 25, 2019, 07:35:39 pm »
Bandwidth on a "opened up" MSO7000 using a Leo Bodnar fast rise time pulse generator 10Mhz (40picosec version):

First image of the pulse genny  taken with acquisition set to average, measure set to normal mode, BW @250Mhz as you can see the average is just a shade of 1ns for rise time which would indicate a BW around the the 350Mhz mark using 2 averages.

Second trace as above with BW limit removed all other setting identical, now the result is 455 picosec rise time which is pretty close to around 820Mhz.

The 3rd one is a 25HMz rolling linear sweep, 500mV p2p.
« Last Edit: August 30, 2019, 06:29:46 pm by tv84 »
 
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Offline SpaleKG

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Re: New Rigol DS7000
« Reply #216 on: September 27, 2019, 10:37:16 am »
Bandwidth on a "opened up" MSO7000 using a Leo Bodnar fast rise time pulse generator 10Mhz (40picosec version):

First image of the pulse genny  taken with acquisition set to average, measure set to normal mode, BW @250Mhz as you can see the average is just a shade of 1ns for rise time which would indicate a BW around the the 350Mhz mark using 2 averages.

Second trace as above with BW limit removed all other setting identical, now the result is 455 picosec rise time which is pretty close to around 820Mhz.

The 3rd one is a 25HMz rolling linear sweep, 500mV p2p.

Can you share resources for unlocking MSO7000? Do you have GAL with enabled SSH? Or if you have any patched GAL for MSO7000.

did you have a workaround or how is the procedure?

I didn't do any patch for the 7000. If anyone wants to create the patch, I can provide the bytes to be changed.

I would like to try to create patch for 7000. Please provide what needs to be changed.


Thanks,
Spale
« Last Edit: September 27, 2019, 10:42:02 am by SpaleKG »
 

Offline tv84

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Re: New Rigol DS7000
« Reply #217 on: September 27, 2019, 10:53:12 am »
I would like to try to create patch for 7000. Please provide what needs to be changed.

Use the method for the MSO5000 as described here:

https://www.eevblog.com/forum/testgear/hacking-the-rigol-mso5000-series-oscilloscopes/msg2682411/#msg2682411

You will need to patch the app accordingly.
 

Offline wat

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Re: New Rigol DS7000
« Reply #218 on: October 01, 2019, 08:49:07 pm »
Thanks to tv84, here is an happy owner of an "upgraded" MSO7014!!!
500MHz and all the options enabled!

I have the latest FW downloaded from the Rigol main website:
https://rigol.com/supports/software-firmware-download_3.html  (Google Chrome is great to translate pages in Chinese!)

 

Offline Sighound36

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Re: New Rigol DS7000
« Reply #219 on: October 01, 2019, 08:53:56 pm »
Thanks to tv84, here is an happy owner of an "upgraded" MSO7014!!!
500MHz and all the options enabled!

I have the latest FW downloaded from the Rigol main website:
https://rigol.com/supports/software-firmware-download_3.html  (Google Chrome is great to translate pages in Chinese!)

Welcome to the club actually you have pretty close yo 1Ghz BW as well Tv84 is rather good isn't he  8)
 

Offline wat

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Re: New Rigol DS7000
« Reply #220 on: October 01, 2019, 09:02:48 pm »
Thanks to tv84, here is an happy owner of an "upgraded" MSO7014!!!
500MHz and all the options enabled!

I have the latest FW downloaded from the Rigol main website:
https://rigol.com/supports/software-firmware-download_3.html  (Google Chrome is great to translate pages in Chinese!)

Welcome to the club actually you have pretty close yo 1Ghz BW as well Tv84 is rather good isn't he  8)

I would say awesome, yeah!
 

Offline tv84

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Re: New Rigol DS7000
« Reply #221 on: October 27, 2019, 09:50:27 pm »
Backup scripts for MSO/DS7000

Here.
 


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