Author Topic: Rigol MSO8000 first impressions  (Read 1100 times)

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Offline Sighound36

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Rigol MSO8000 first impressions
« on: December 10, 2019, 07:49:17 pm »
Having had extensive use of both the Rigol MSO5000 & 7000 models you could say I have a soft spot for these model ranges, I find them easy to use, responsive, and nicely constructed (at their relevant price points), they (the) 5 and 7 thousand series scopes had some nice features and made decent daily user scopes for a wide range of measurement applications.

No they are not 12bit+ machines with ultra low noise floors, we have other scopes for these particular areas we need to look deeper into, but that is not so often these days. However they do offer a lot of real usable performance for the cost.

The 8000 particularly feels really good, greatly improved GUI (even over the 7000) , for myself the eye and jitter measurements are especially useful.That said having a decent 2Ghz + BW at this cost range is very appealing as well. Coupled with a 500Mp deep memory and 10G/s (single channel) shared between the rest.

To put this into perspective if we take the Tek and R&S models which have USEFUL eye and jitter at this BW you are looking at around the £30K mark for the RTB2000 (plus high res option another £1500) though I did not realize at first it is an 8 bit adc that is software enhanced to 16bit) with 2 Ghz BW and memory upgrades, I2S options plus power analysis with the correct probes you are looking at £40K. Now I am not suggesting for one moment that the MSO 8000 is a giant killer in relation to the big four offerings, its not. But what you do get is a very decently appointed scope with decent everyday usable features with seriously good BW and deep memory and a decent sample rate plus eye and jitter facility.

The Jitter/eye option on the Tek 5 series is £4K plus £1800 for the I2S/L/RJT suite, for the 6 series the same apps cost £6300 + £1800 for the audio app. That is the price of the basic MSO8000!

That said they are pretty decent scopes without question, my point is what do you exactly require for the applications you use daily? R&D is a different matter!

Last week the 8000 arrived although we have been busy, have managed to try a few bits and pieces on the scope see below, we have been pleasantly surprised, especially with the GUI and overall feel of the unit, I know the 7000 uses the same casework, but the 8000 is another level.

Will be trying out some multi domain analysis later in the week as well so will post this up to

Used a HP4433B vector signal generator with OXCO option fully warmed up along with scope, using 18Ghz T-flex 405 cables.

Outputting a 2Vpp sine wave (10.60dbm on the HP), scope set to averaging, Freq counter on, period and second freq counter in the measurement bar on lower left hand screen, along with cursor information box.

First up Bodnar rise time reference test a very respectable 168ps

500Mhz 2Vpp base line start point

Followed by the 1Ghz even at 1.5Ghz (still showing1.92v), then the -3db point on this scope (1.42V) on this scope of 2.216Ghz not bad for a 7200 euro scope. All options are available thanks to the man of a thousand coding scrips  :-+

Next I really wanted to see how far I could push this scope before decided enough was enough

Now 2.5ghz still a very usable 1.07v!

This surprised me a viable waveform at 3.2Ghz all be it @-11db seriously though 2.9Ghz is actually very usable! maybe not for precise measurement but its usable and more than visible!

Lastly an FFT plot using a 2.5Ghz signal at the same 2Vpp (from 500Mhz) you can see they are identifiable peaks up to 3.7Ghz

From the brief period I have spent with this new model, the MSO 8000 is shaping up to be a serious scope for sensible mid range pricing with some big ticket features.

One issue I found , the main frequency counter stops at 2.460Ghz, (it actually reads backwards at higher BW, though it is only supposed to have a 2Ghz BW!) the measurement/analyze section does not suffer the same fate.



« Last Edit: December 11, 2019, 04:46:18 pm by Sighound36 »
 
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Offline tv84

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Re: Rigol MSO8000 first impressions
« Reply #1 on: December 29, 2019, 05:13:12 pm »
Curriculum of one of Rigol's MSO8000/7000 programmers

MSO8000 (maybe also 9000):
"Project description: MartialEagle is an upgrade of the previous flamingo project. The target of the project is 20G sampling rate, 8 channels, 15.6-inch 1080P. A new generation of oscilloscopes with a strong touch experience."

MSO7000:
"Project description: The flamingo project is a major update of the rigol oscilloscope, which completely abandoned the oscilloscope level that has been used for nearly 20 years since the company was founded. Taiwan, software and hardware have been completely updated, the software for the first time using the linux + QT development program under the arm, the project goal is a sampling rate of 10GSa/s, a multifunctional digital oscilloscope with a storage depth of 500Mpts and a bandwidth of 500MHz."
 
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Offline Sighound36

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Re: Rigol MSO8000 first impressions
« Reply #2 on: January 23, 2020, 10:56:29 am »
Time for some follow up on the Rigol MSO 8000. It's been around a month now and confidence in the unit is pretty high now having been used for many a project it has acquainted itself very well.

This time a few benchmarks to see plus I thought it might be good see how it stacks up against 'real' scope as Martin72 puts it  :)
So a Tektronix MSO64 with 8Ghz BW 25G/s,  16 bit in high resolution mode, segmented memory etc full jitter/eye and power analysis apps, installed so no small task as the Tek is one very decent piece of equipment price around £80+K in this format

Starting off with basic noise floor measurements on both scopes.

Rigol MSO 8000 full bandwidth 2Ghz, no high resolution mode, precision on only, 50mv per div and 200ps in the time domain trigger level set to 2mv, nothing connected histogram on also Vrms shown as well as deviation showing

First image I did at the same time as the Tek then realized I had only 49.5mv per div showing so I took another measurement this morning sorry

The third image is the Tek MSO64, set to 2Ghz BW, no high resolution mode, 50mv per div and 200ps time domain, 2mv trigger and only 500G/s showing (lol) with histogram plots and Vrms, amplitude etc.

As you would expect the Tek is pretty good, but the Rigol isn't bad either

We have been developing a new power supply for a high speed clock application so I have been using both to measure the development process and will keep you posted on the comparison between the two. 


 
« Last Edit: January 23, 2020, 11:00:55 am by Sighound36 »
 
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Offline coppice

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Re: Rigol MSO8000 first impressions
« Reply #3 on: January 23, 2020, 11:11:26 am »
Curriculum of one of Rigol's MSO8000/7000 programmers

MSO8000 (maybe also 9000):
"Project description: MartialEagle is an upgrade of the previous flamingo project. The target of the project is 20G sampling rate, 8 channels, 15.6-inch 1080P. A new generation of oscilloscopes with a strong touch experience."

MSO7000:
"Project description: The flamingo project is a major update of the rigol oscilloscope, which completely abandoned the oscilloscope level that has been used for nearly 20 years since the company was founded. Taiwan, software and hardware have been completely updated, the software for the first time using the linux + QT development program under the arm, the project goal is a sampling rate of 10GSa/s, a multifunctional digital oscilloscope with a storage depth of 500Mpts and a bandwidth of 500MHz."
Isn't machine translation wonderful?  :) (Taiwan roughly translates to platform).
 

Offline Sighound36

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Re: Rigol MSO8000 first impressions
« Reply #4 on: January 23, 2020, 02:54:14 pm »
Following on from the earlier post here are a couple of word clock square wave forms taken on both scopes using T-Flex 405 cabling (50 Ohm) BNC Some further comparison images for you.

Frequency is 44.1Khz , both scopes set to 250Mhz band width, 330m/v vertical scale, trigger is 1.23, both in high resolution mode, the Tek has 12.5G/s here to the Rigol's 10G/s, and both are using 500kpts of memory.

First image is the Rigol, second is the Tek

« Last Edit: January 23, 2020, 02:59:13 pm by Sighound36 »
 
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