Products > Test Equipment
Should I buy a Rigol MSO5000?
2N3055:
It is funny how there must always be this kind of topic..
It is also funny how Rigols and Siglents are held up to a higher standards than A-brand scopes costing 20x more.
So, since everybody else is repeating half-facts ad nauseum, let's repeat some facts:
1. Revision history for very expensive Keysight MSOX-3000T (18000 USD list price) is 27 PAGES LONG... Most of it bugs, some improvements over years.. Does that mean they are shit? No, it means they have great support...
2. R/S RTB2000 came out full of bugs, in some pretty basic stuff like sampling the waveform didn't work properly. It also had only basic math, comparable to Rigol 1000Z..For +5000€ price. After 3 years (that's three years) most of it was debugged, and math was upgraded (under pressure of users). It is a great scope now, and it has, also, great support. Nobody said " I paid 5000$ for this shit and had to wait 3 years for it to become bug free... Screw the Germans, they are crap.." NO. It was also "We have great support"
....
Just mention exploding PSUs, scopes that loose flash for no reason, very expensive multimeters that blue screen ....
And so on and so on...
And than, on the other side, for instance, we have a user here which bought a product that was few months old (so called "early adopter") and after few weeks, declared product is crap because it is buggy, that manufacturer is crap because they don't make perfect products first time with no bugs whatsoever....
Funny world, full of double standards.
Rigol MSO5000 was officially released in November 2018. 5 months ago..
And it's basic 70MHz version cost just a bit more than buying RTB2000 MSO option.
If you go and buy 4x 350MHz passive probes that would be 400€.. So you get a scope for 500€...
So let's be realistic on both counts: It is very inexpensive scope, and it is still very new. I personally never was early adopter and couldn't understand people who are.. All brand new platforms are buggy as hell, even from A-brands..
It is all about either having trust in manufacturer they will do it right eventually (and even with A-brands it takes time) or waiting for product to stabilise for a year or so and buy only things that are proven to be stable and dependable.
Full disclosure: Like nctnico, I also believe that if you need equipment for business, and if it makes your process faster and/or better you go and give more money for a product that serves you better.
I personally wouldn't buy MSO5000/7000 for business right now because I don't have time to be part of debug process..
I also don't like their user interface. I like Siglent's UI direction better. But that is a matter of taste too..
If in a year, MSO5000/7000 platform still doesn't have HIRES done right, if it still is not refined in a way that shows it is going towards being mature and stable platform than it will be that MSO5000 was unfulfilled promise and bad product. If they fix problems, it will be GREAT product and a good manufacturer.
We'll see in a year. Until then, jury is still out...
Regards,
2N3055:
--- Quote from: nctnico on April 06, 2019, 09:40:15 am ---But the RTB2000 only goes to 200MHz. 500MHz bandwidth without real 50 Ohm inputs is madness.
--- End quote ---
RTB2000 goes up to 300 MHZ and MSO5000 up to 350MHz.
They both need 50 Ohm termination...
tautech:
--- Quote from: Martin72 on April 06, 2019, 09:28:49 am ---Having any passive probe on high frequency ruins everything.
The derating curves are nothing unusual, you can make it a little bit "better", but you can´t fight against the "nature" of a passive probe
--- End quote ---
Yet some are better than others.
Open this in another tab and compare against the Rigol probe spec above.
https://siglentna-qwavztc8hvq2w.stackpathdns.com/wp-content/uploads/2019/02/SP3025A_3050A_Users_Guide.pdf
V derating and impedance profiles have an edge. ;)
petemate:
Im really glad that there is this much debate on the topic. Its a great way for me to reflect on my decision, which at the moment is leaning towards "wait 6-12 months".
One question regarding the missing hi-res acquisition that most people agree is an issue: There are 8 bits at 8GSPS. Thats not going to change with the chipset. As far as I know, hi-res mode is just averaging of a number of sequential samples, providing the possibility to get "increased resolution", since the average of n samples can produce a value that is in-between each sample value. Why would this be a hardware issue? I get that you can do it in HW, but why can't it be added as a software fix?
Martin72:
--- Quote --- I personally never was early adopter and couldn't understand people who are.. All brand new platforms are buggy as hell, even from A-brands..
--- End quote ---
But without them, bugs which might appear during daily measuring (and creates countless different measure-situtations) would be hard to find.
I own one since end of november and since december-march I was in contact to the rigol support, telling problems, what could be better and so on.
--- Quote --- but why can't it be added as a software fix?
--- End quote ---
It was implemented in the first firmware update but doesn´t have the effect I expected from:
https://www.eevblog.com/forum/blog/new-rigol-scope/msg2266332/#msg2266332
But they know it, I´ll send them the pics, let´s see what will happen.
--- Quote ---They both need 50 Ohm termination...
--- End quote ---
And it will looks like this:
https://www.eevblog.com/forum/blog/new-rigol-scope/msg2270838/#msg2270838
--- Quote ---I personally wouldn't buy MSO5000/7000 for business right now because I don't have time to be part of debug process..
--- End quote ---
Same here, my colleagues shouldn´t be part of it - we need things that works proper for i.e. acceptance tests.
But if some bugs were eliminated, it could be a cheap tool for daily measurings and if some gets broken, just buying new instead of repairing.
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