Rigol DS1074Z inside Picture

[HarleyYan]

Could you try following parameter ?
Storage ==> CSV  //  DataSrc ==> MEM  //  Param ==> ON and sample depth > 60Kpts

Yep, same as you
its failed to save 

i already feed back this problem to Rigol, they said it will be fixed in next firmware version.

[crt]

i already feed back this problem to Rigol, they said it will be fixed in next firmware version.

Please inform me when new firmware is release 

p.s
DS1000Z owner should read this
https://www.eevblog.com/forum/testgear/sniffing-the-rigol%27s-internal-i2c-bus/1080/

[HarleyYan]

Okey, i will post it here if i get the new version.
It's really a good news for rigol users:)
They did a great job!

[metalphreak]

Guys, my scope just arrived. It has V00.02.00 SP1 FW on it (I can't seem to get the advance system info key combo to work...).

Anyway, my scope randomly decides to restart spontaneously 

Is there any later firmware? Where do I need to go on the Rigol site to request an update?


Can also confirm the bug below happens on mine too

[iloveelectronics]

My DS1104Z has V00.01.00.SP10 software version on it. The bug in the video doesn't happen on mine. My scope actually came with an even earlier version and I got this version I'm using in early September from the dealer in Beijing where I ordered the scope from.

[Electro Fan]

Guys, my scope just arrived. It has V00.02.00 SP1 FW on it (I can't seem to get the advance system info key combo to work...).

Anyway, my scope randomly decides to restart spontaneously 

Is there any later firmware? Where do I need to go on the Rigol site to request an update?


Can also confirm the bug below happens on mine too

Please tell us more about the 1074Z.  Thanks!

[evanh]

I've started posting some bugs - https://www.eevblog.com/forum/blog/eevblog-522-rigol-ds1000z-oscilloscope-quick-look/msg294218/#msg294218

It's already a nice scope though.  Well worth the price.  A few more firmware updates and it'll be perfect.

[alank2]

Did anyone ever figure out how to get into the advanced system info menu?

Also, I've tried to measure rise time on my DS1074Z and I've got to say I am pretty pleased so far!  I have the 70MHz model and:

Rigol 350MHz Probes (RP1300) - I mostly get 1.7ns rise time, but have seen a 1.6ns.
Rigol 150MHz Probes (RP2200) - I mostly get 1.9ns to 2.0ns rise time, but have seen a 1.8ns.

I am not using a decent rise time pulse generator - just a tactile button with some capacitors that switches from ground to +5V.

Shouldn't this rise time be MUCH slower for this model as in 5ns?

Is it possible the 1104Z and 1074Z are the SAME unit just with a different sticker on them?

[marmad]

Is it possible the 1104Z and 1074Z are the SAME unit just with a different sticker on them?

Quite possible. There has been no difference ever discovered between the DS2072 and DS2102 - except the front panel sticker.

[Mark_O]

Is it possible the 1104Z and 1074Z are the SAME unit just with a different sticker on them?

Quite possible. There has been no difference ever discovered between the DS2072 and DS2102 - except the front panel sticker.

And the price tag!   

[Mark_O]

Shouldn't this rise time be MUCH slower for this model as in 5ns?

Only if the bandwidth was actually 70 MHz.

Rigol 350MHz Probes (RP1300) - I mostly get 1.7ns rise time, but have seen a 1.6ns.
Rigol 150MHz Probes (RP2200) - I mostly get 1.9ns to 2.0ns rise time, but have seen a 1.8ns.

One thing to keep in mind there is you have only 5 sample points/div.  So I wouldn't put much stock (any at all) in the tenths of a nanosec rez.  You're splitting imaginary hairs.

[alank2]

Only if the bandwidth was actually 70 MHz.

So far I am pleased - I won't have to try to find a way to "unlock" it to 100MHz...  If it is 1.7ns that is 350/1.7 = 205 MHz.

It may lack in sample speed, but it is nice to know it won't be limited by bandwidth too.

[eV1Te]

Could you try following parameter ?
Storage ==> CSV  //  DataSrc ==> MEM  //  Param ==> ON and sample depth > 60Kpts

Yep, same as you
its failed to save 

i already feed back this problem to Rigol, they said it will be fixed in next firmware version.

I received my DS1074Z-S today, with the firmware version 00.02.00.SP1
I have emailed Rigol about firmware update since this one has some bugs. Where am I suppose to request firmware by the way? (I just emailed their European sales office, it was the only email I could find)

- I can not enter the advanced system info menu either with this firmware.
- I can't save waveforms or CSV with large number of points, limited to very small memory, gives error otherwise.
- If I turn the scope off with the signal generator turned on, it will boot up with it turned on as well (remembers settings), but the status LED will not be on (signal is enabled but no indication that it is on).
- All advanced math functions (integrate, abs, sqrt etc.) only work when 2 channels are enabled (even though they should only need one channels), seems that you need to have specific combination of channels enabled: Ch1, Ch3 or Ch2, Ch4. Other combinations of active channels results in error message.
- In menu: Utility -> System, there is option "VerticalExp", with no explanation in the manual or in the help menu in the device. Can be set to "Ground" or "Center", which determines the reference when you zoom in on a vertically offset signal. Ground is standard, Center means that the entire trace shifts vertical position when you change vertical gain.

This was a few things I found during the first 2 hours of testing.

[sync]

So far I am pleased - I won't have to try to find a way to "unlock" it to 100MHz...  If it is 1.7ns that is 350/1.7 = 205 MHz.

It may lack in sample speed, but it is nice to know it won't be limited by bandwidth too.

Sorry, I don't think this conclusion is valid. The BW = 0.34/t_r is only valid if the scope has a gaussian response. For example the DS1102E doesn't. See
Jump to 15:20. Measured 2ns rise time which would be 170MHz. But the real bandwidth is 136MHz.

I made tests with a 74AC14 based oscillator into a 50ohm coax and a feed-through terminator. This is from my 100MHz DS1052E. The ringing is symmetrically around the top. My 100MHz analog scopes shows the same.


This is from my DS1074Z. The existing overshoot is reduced. It's slower.


Here with a RP2200 probe connected at the feed-trough terminator. First with the ground lead. Second with a BNC to probe adapter. The probe overshoots and therefore the measured rise time is lower.




Measuring the bandwidth by rise time may not work and measuring the rise time with a probe may not work too.

Edit: I doubt that it's possible to measure <2ns time times with only 1GSa/s correctly. What you see is the result of interpolation.

[Mark_O]

It may lack in sample speed, but it is nice to know it won't be limited by bandwidth too.

A limitation in sample speed IS a limitation in bandwidth. 

Don't forget Mr. Nyquist.  Unless you enjoy spending your time chasing ghosts. 

[alank2]

A limitation in sample speed IS a limitation in bandwidth. 
Don't forget Mr. Nyquist.  Unless you enjoy spending your time chasing ghosts. 

I should have said analog or input stage bandwidth, but yet indeed sample speed is always a concern.

Sorry, I don't think this conclusion is valid. The BW = 0.34/t_r is only valid if the scope has a gaussian response. For example the DS1102E doesn't.

Even so, it is much better than I would have thought given it is only a 70MHz scope.  Even if you take 350/1.7=205.9 and then multiply it by 80% (like the error in the DS1052) you still get 164.7MHz.  Far exceeds what I would have expected.

[seronday]

Frequency Response plot of a Rigol DS1074Z for those who may be interested.

The DSO will display wave forms up to at least 300Mhz in single channel mode.
The Edge trigger is very stable up to at least 400Mhz with a signal level down to approx 0.8 div p-p.

[cybermaus]

Frequency Response plot of a Rigol DS1074Z for those who may be interested.

IS the -3dB rule valid for test equipment too? Then this would be a 90MHz scope I guess.
Would be nice if someone could do the same on a DS1104Z.


Edit: PS: Did you see this post.  This guy has a sticker-labeled DS1074Z-S, but firmware claims DS1104Z-S, which is the model he ordered. He speculates they rebatched them in the factory due to stock issues.

[seronday]

Yes, the bandwidth is specified at the -3dB down point.

[alank2]

Frequency Response plot of a Rigol DS1074Z for those who may be interested.
The DSO will display wave forms up to at least 300Mhz in single channel mode.
The Edge trigger is very stable up to at least 400Mhz with a signal level down to approx 0.8 div p-p.

Interesting.  I'm beginning to wonder if looking at the rise time of a pulse is of much use if that graph is true.

[Hydrawerk]

- In menu: Utility -> System, there is option "VerticalExp", with no explanation in the manual or in the help menu in the device. Can be set to "Ground" or "Center", which determines the reference when you zoom in on a vertically offset signal. Ground is standard, Center means that the entire trace shifts vertical position when you change vertical gain.

This was a few things I found during the first 2 hours of testing.

This is a standard function found in many scopes. Nothing special. You can fing it even in an Agilent user manual or so...

[alank2]

Does the 1000Z have a screen saver?

[sync]

Frequency Response plot of a Rigol DS1074Z for those who may be interested.

Thanks! This confirms my suspicion that the frequency roll off is quite flat.
What signal source do you used?

[eV1Te]

- In menu: Utility -> System, there is option "VerticalExp", with no explanation in the manual or in the help menu in the device. Can be set to "Ground" or "Center", which determines the reference when you zoom in on a vertically offset signal. Ground is standard, Center means that the entire trace shifts vertical position when you change vertical gain.

This was a few things I found during the first 2 hours of testing.

This is a standard function found in many scopes. Nothing special. You can fing it even in an Agilent user manual or so...

You are probably right, I was just little confused since it was placed together with firmware information and installation of serial keys.
I did however send the list of the most essential bugs to Rigol today, they did confirm that my firmware version was the latest at the moment 00.02.00.SP1

Does the 1000Z have a screen saver?

I have not seen any on my scope, but on a modern LCD you should not need one?

[alank2]

I have not seen any on my scope, but on a modern LCD you should not need one?

Good point, just thought there might be since it is on the ds2000...