RIGOL DS1102Z-E

[trmntr]

I freeze the trace and the trigger displays WAIT..
When I change the time base to 5ns, the brightness decreases!!!

so our actions were different

As for versions, I'll duplicate:
go to "storage" there select CSV or Param and save the file. Then open the saved txt and in the first paragraph it is written about the device parameters
but i'm pretty sure all the specs will be the same

[PatrickB]

Thank you trmntr
Yes, all parameters are the same

[trmntr]

Has anyone tested the operation of an external trigger?
There are cases when it turns out this does not work on the device

[Piton]

It's like that for everyone. It is necessary to reset to the factory settings: if you have not forgotten, then the 5th button on the top on the left side, you must hold it when you turn it on. After downloading, there will be a menu in Chinese.

[phamthai2503]

Hello, I currently want to buy an oscilloscope to serve my laptop repair needs. There is 1 store in my country selling Rigol DS1102Z-E (100% New) $280  , and there are 2 more options of Second-hand goods (95%) Rigol DS1102E (100Mhz) $200  + Rigol DS1152E (150Mhz) $208
Which should I buy? please advise me! Thank you

[Fungus]

Hello, I currently want to buy an oscilloscope to serve my laptop repair needs. There is 1 store in my country selling Rigol DS1102Z-E (100% New) $280  , and there are 2 more options of Second-hand goods (95%) Rigol DS1102E (100Mhz) $200  + Rigol DS1152E (150Mhz) $208
Which should I buy? please advise me! Thank you

DS1102Z-E

[Prizmatic]

Got mine 2 weeks ago. I bought it knowing about the 5ns timebase issue, TBH its not as bad as I expected. I only need 2 channels and for the price I think its a very good scope for hobby use. Fan noise is a bit higher than I'd like, my only real grumble.

[PatrickB]

DS1x02Z-E owners, do the following manipulation:
- apply a sinusoidal signal (or other) of 10MHz or 20MHz on both channels
- set the memory depth to 6kpts
- set the time base to 10ns
And tell me what you think about the display of traces on the screen.

[trmntr]

PatrickВ, show us a screenshot of your

[Fungus]

DS1x02Z-E owners, do the following manipulation:
- apply a sinusoidal signal (or other) of 10MHz or 20MHz on both channels
- set the memory depth to 6kpts
- set the time base to 10ns
And tell me what you think about the display of traces on the screen.

Can you post screenshots so people who don't own one can see the problem, too?

[PatrickB]

Watch the videos on https://www.dropbox.com/scl/fo/9els7w9e8dfxifkrp9bcj/h?dl=0&rlkey=t6g6y4lli5cviuu50as7yxx2n
With the first video, you will see with which scope settings (10ns, 6kpts and 10MHz signal on both channels), the flickering of the traces appears or not.
In the second, you will see that this problem is visible with certain signal frequencies on the 2 channels.
Of course if the brightness is at 100%, you may not see this bug but it exists nevertheless.

[PatrickB]

Have you noticed the same faults on your RIGOL DS1000Z-E oscilloscopes?
Of course if you have 100% brightness, you won't see them.

[trmntr]

One of the users of the monitor.net.ru resource replied that he had not noticed such an anomaly.
I can’t check myself, there is no signal generator.

[PatrickB]

I don't think this is a problem just with my scope.
But that's what I want to check this. I'm waiting for answers from Rigol...
I'll let you know if I get any answers.

phamthai2503 do you use the same scope?

[phamthai2503]

I don't think this is a problem just with my scope.
But that's what I want to check this. I'm waiting for answers from Rigol...
I'll let you know if I get any answers.

phamthai2503 do you use the same scope?

  I haven't bought it yet bro

[PatrickB]

phanthai2503, for the use I make of my oscilloscope and if I had to buy one, I would take a Siglent SDS1x04X-E. It is more expensive but...
I'm sure the DS1102Z-E is fine for some uses but not for me, especially when the signal frequency exceeds the BF

[trmntr]

... especially when the signal frequency exceeds the BF   

could you explain here?

[phamthai2503]

phanthai2503, for the use I make of my oscilloscope and if I had to buy one, I would take a Siglent SDS1x04X-E. It is more expensive but...
I'm sure the DS1102Z-E is fine for some uses but not for me, especially when the signal frequency exceeds the BF

When I found out about Signent, last week's price was very good

Siglent SDS1104X-E      375$ 1 week ago (Black Friday), today 468$
Siglent SDS1202X-E      352$ 1 week ago (Black Friday), today 440$
Siglent SDS1104X-U                                                     today 383$ 
Siglent SDS1102CML+   330$ 1 week ago (Black Friday), today 365$

[Piton]

I bought mine Rigol for $274. Now it costs $329 in this store plus $69 shipping to Ukraine.

[trmntr]

Mysterious price increase.)  What is it motivated by?  Usually certain things lose their value over time, but here there is some kind of anomaly. My ds1102z-e also cost me $329, however, there was free shipping.

[nightfire]

I got mine as it was introduced to the market for around 250 € via Amazon in germany. This was at the begin of the whole Covid story- nowadays, after some supply chain disruptions and proces of energy going up, the same article suffers from inflation and stuff...

[PatrickB]

BF means low frequency (LF)

Regarding trace flashing, Rigol changed the motherboard but can't solve the brightness problem with the time base at 5ns.
Rigol took back my oscilloscope.

[trmntr]

Rigol took back my oscilloscope.

Was the money returned?  What are you taking instead?

[rsjsouza]

I don't see such dramatic flickering on my DS1202Z-E (the 200MHz version)

[PatrickB]

trmntr:
Yes, Rigal refunded me the full purchase price.
I will buy a Siglent, the SDS1104X-E or SDS1204X-E. I don't really need the 200MHz. I have not found similar models, which suit me, in the Rigol range.
These 2 models are more expensive than the Rigol.
But Santa Claus is coming soon, I am thinking.


rsjsouza:
The flickering/flickering of the traces was, according to Rigol, an electronic failure.
Fortunately, this failure does not occur on the entire DS1x02Z-E range.


I had no luck with this failure but what prompted me to return my oscilloscope was the loss of luminosity with the time base at 5ns.
I still think that the DS1x02Z-E range is a good entry level at a very correct price, content of the possibilities of this device and that it is suitable for many users. Unfortunately for the use that I have, this defect is very annoying for me.