Author Topic: REVIEW - Rigol MSO5000. Tests, bugs, questions  (Read 23482 times)

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Offline neon416

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #75 on: January 24, 2020, 05:00:47 pm »
It's about strange frequency response in 400-600 MHz range.

The analog fronted after BNC in MSO5000 have not populated serial RLC network components in comparsion of MSO7000. May be installation of this components can get more flat responce after 400 MHz? I think LC is tuned on to ~500 MHz but I have not MSO7000 to check them values.
 
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Offline Sighound36

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #76 on: January 24, 2020, 05:40:33 pm »
The best you will get out of a 5000 opened up is 470Mhz, the 7000 around 830Mhz
Seeking quality measurement equipment at realistic cost with proper service backup. If you pay peanuts you employ monkeys.
 

Offline thm_w

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #77 on: January 25, 2020, 12:54:54 am »
The best you will get out of a 5000 opened up is 470Mhz, the 7000 around 830Mhz

They are saying maybe some HW filtering is the cause. I would be skeptical and suspect MSO7000 is using higher quality PCB or front end components, but in terms of the ASICs it should be possible.

What is the noise floor performance? especially compared with Rigol DS2000A, Siglent SDS2000X?

Worse than Siglent (<350uV?), they have very good noise floor.
Hopefully once they get hi-res working properly it will improve a bit, but the benefit of the 5000 is very high sample rate.

A low noise front end amp would probably be a good addition..
 

Offline Sighound36

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #78 on: January 27, 2020, 04:05:38 pm »
We have tried quite a bit to extend the 7000 as far as is possible FW wise although we can obtain the magical 1Ghz model, the best I can see is 830Mhz.

You are correct the hardware inside the 7000 is superior, however I feel they (Rigol) have not fully worked to the best way to bring their ASIC into full focus yet!

The 8000 they seem to be getting there with extracting the potential on the chip more I feel
Seeking quality measurement equipment at realistic cost with proper service backup. If you pay peanuts you employ monkeys.
 
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Offline neon416

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #79 on: February 01, 2020, 03:15:50 pm »
The best you will get out of a 5000 opened up is 470Mhz, the 7000 around 830Mhz
It sounds like true, but look at this picture


MSO5000 have 500 MHz bandwidth on -3dB, but 900 MHz on -6dB. I think bandwidth as in 7000 may be obtained by simple RLC correction network in frontend which is not soldered on PCB in 5000. Or not))

[attachimg=1]
Thank you EEVblog channel!
« Last Edit: February 01, 2020, 03:32:10 pm by neon416 »
 
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Online tv84

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #80 on: February 01, 2020, 03:38:07 pm »
Or extend 7000 BW by desoldering?
 

Offline skander36

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #81 on: March 07, 2020, 08:39:31 am »
Hi ,
Someone observed that in versions 00.01.02.00.02 & 00.01.02.00.03 , when AUTO function  is used , it will activate CH 3 even if is not signal on this ? Nothing improve after calibration .
This can be avoided in Utility ->More->Autoconfig->Only active ch. but at next boot is back.
In 00.01.01.04.08 this is not happened .
AUTO function is supposed to save your time but now turning off CH3 an resizing trace to center will not help .
« Last Edit: March 07, 2020, 10:26:10 am by skander36 »
 

Offline NoisyBoy

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #82 on: March 07, 2020, 01:29:15 pm »
Yep, exactly same problem with the new firmware.  The only workaround is to change the startup to the last state rather than the default. 
 
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Offline skander36

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #83 on: March 07, 2020, 01:35:51 pm »
Yep, exactly same problem with the new firmware.  The only workaround is to change the startup to the last state rather than the default.
Thank you for the tip !
 

Offline pmaggi

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #84 on: April 05, 2020, 02:04:12 pm »
One possible bug... when performing fft analysis, if you use Vrms instead of dB, peak search doesn't work, although you adjust the threshold...
This happends with FW 00.01.02.00.03
 

Offline pmaggi

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #85 on: April 05, 2020, 03:19:40 pm »
my mistake, it works perfectly. I forgot to adjust the excursion
Sorry
 

Offline Back2Volts

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #86 on: April 19, 2020, 02:50:34 pm »
I was looking for the SIGROK download when I noticed there has been a very recent update to PULSEVIEW,  and looking a little back in the blog I noticed that, on the driver library, they have added support for the MSO5000.   I wonder what that does.   Does any one have any idea about it?
 

Offline el_man

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #87 on: April 21, 2020, 06:58:03 pm »
I was looking for the SIGROK download when I noticed there has been a very recent update to PULSEVIEW,  and looking a little back in the blog I noticed that, on the driver library, they have added support for the MSO5000.   I wonder what that does.   Does any one have any idea about it?

Could you be more specific. Thanks
 

Offline neon416

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #88 on: April 21, 2020, 07:06:35 pm »
Or extend 7000 BW by desoldering?
How? It's serial RLC net.
 

Offline thm_w

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #89 on: April 21, 2020, 09:34:21 pm »
I was looking for the SIGROK download when I noticed there has been a very recent update to PULSEVIEW,  and looking a little back in the blog I noticed that, on the driver library, they have added support for the MSO5000.   I wonder what that does.   Does any one have any idea about it?

https://github.com/sigrokproject/libsigrok/commit/f6129c8f0c92e45de5d70b4101bf2bd759a5fdf7
https://github.com/sigrokproject/libsigrok/blob/4c5f70063ad6ae311809ee7818ddc9070fbe05cf/src/hardware/rigol-ds/api.c

Should be able to read analog and digital channels, not sure what if any limitations there are for triggering/etc.
Try it out and let us know.
 

Offline Phils

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #90 on: May 05, 2020, 03:50:17 pm »
Hello!  Bought Mso5072 firmware was 00.01.02. 00.03, when measuring in signal mode sinus with a voltage of 0.5 volts, the probe x10 after pressing the auto button oscillograph can not synchronize the signal, installed firmware ..... 08 opened all the options, calibrated, the problem is the same. If I switch the probe x1 there are no problems with synchronization. I still have dso4102c there all right... The seller offers to return the oscillograph, can I fix it myself?
 

Online TK

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #91 on: May 05, 2020, 03:58:20 pm »
Hello!  Bought Mso5072 firmware was 00.01.02. 00.03, when measuring in signal mode sinus with a voltage of 0.5 volts, the probe x10 after pressing the auto button oscillograph can not synchronize the signal, installed firmware ..... 08 opened all the options, calibrated, the problem is the same. If I switch the probe x1 there are no problems with synchronization. I still have dso4102c there all right... The seller offers to return the oscillograph, can I fix it myself?
The signal is noisy, looks like ground connection is missing.  It will trigger on the spikes and you end up seeing an out of sync signal, but the scope is triggering correctly.
 
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Offline Phils

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #92 on: May 05, 2020, 04:10:31 pm »
There is no grounding in the 220 volt socket if I include HFR  no problem in the  oscillograph no, but there is a buzz as to why dso4102c is fine. Maybe capacitors on the main voltage do not work?
« Last Edit: May 05, 2020, 04:21:05 pm by Phils »
 

Offline thm_w

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #93 on: May 05, 2020, 08:47:46 pm »
There is no grounding in the 220 volt socket if I include HFR  no problem in the  oscillograph no, but there is a buzz as to why dso4102c is fine. Maybe capacitors on the main voltage do not work?

When you have the probe set to 1x the bandwidth is reduced, and maybe these spikes are as well.
Measure something else other than the 220V socket. Use the internal function generator, the cal signal, or some other circuit you have. Don't rely on 220V mains voltage to be consistent as a reference.

edit: as TK pointed out its gen already, can see scope probe connected to the gen 1 output.
« Last Edit: May 05, 2020, 10:03:51 pm by thm_w »
 

Online TK

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #94 on: May 05, 2020, 08:51:14 pm »
There is no grounding in the 220 volt socket if I include HFR  no problem in the  oscillograph no, but there is a buzz as to why dso4102c is fine. Maybe capacitors on the main voltage do not work?

When you have the probe set to 1x the bandwidth is reduced, and maybe these spikes are as well.
Measure something else other than the 220V socket. Use the internal function generator, the cal signal, or some other circuit you have. Don't rely on 220V mains voltage to be consistent as a reference.
I think the signal source is the internal waveform generator, not the 220V mains.  The reference to 220V mains not having ground is probably due to an old installation.  If the source is the internal waveform generator, then I would like to know how it was connected to CH1 input.
 
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Offline neon416

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #95 on: May 05, 2020, 10:52:51 pm »
There is no grounding in the 220 volt socket if I include HFR  no problem in the  oscillograph no, but there is a buzz as to why dso4102c is fine. Maybe capacitors on the main voltage do not work?
Try to connect probe tip to SG output case (ground). If you whatever see this spikes - problem is in EMC, if not - in SG signal.
 

Offline Gandalf_Sr

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #96 on: May 06, 2020, 12:05:40 am »
I'm on 01.03.00.01 and there is a still a bug for the external HDMI.  Mine won't output a signal even though the output is switched to on.  After the scope has run a few minutes (5 maybe), it will work but only after restarting the scope.  When I've tried to get it working too early, I get a distorted HDMI picture that's all red-toned
If at first you don't succeed, get a bigger hammer
 
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Online TK

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #97 on: May 06, 2020, 01:11:41 am »
There is no grounding in the 220 volt socket if I include HFR  no problem in the  oscillograph no, but there is a buzz as to why dso4102c is fine. Maybe capacitors on the main voltage do not work?
Try to connect probe tip to SG output case (ground). If you whatever see this spikes - problem is in EMC, if not - in SG signal.
:popcorn:
 

Offline NoisyBoy

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #98 on: May 06, 2020, 02:21:39 am »
I'm on 01.03.00.01 and there is a still a bug for the external HDMI.  Mine won't output a signal even though the output is switched to on.  After the scope has run a few minutes (5 maybe), it will work but only after restarting the scope.  When I've tried to get it working too early, I get a distorted HDMI picture that's all red-toned

I have my monitor attached to the MSO5000, from a cold start, I was able to get a perfect display as soon as I can get to the menu to turn the external display on, no restart involved.  You have to consider the possibility of a hardware issue.  My hardware is ver 1.00.00

I presume it is a HDMI cable straight to the monitor in your case with no switch involved?
 

Offline Phils

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Re: REVIEW - Rigol MSO5000. Tests, bugs, questions
« Reply #99 on: May 06, 2020, 04:45:33 am »
Changed all the entries 1-4. Changed the output of generator 1 and 2, which does not change. Today I'll check at work, there is a grounding in 220v
 


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