Rigol HDO1000 and HDO4000 12bit oscilloscopes launched in China

[Njk]

Unless the -U series specs have changed, it also has a slower waveform capture rate. 30 k/s normally (vs. 50k/s for the regular DHO1000), and 500 k/s in the not-so-useful UltraAcquire mode (vs. 1,500 k/s).

Yes, that seems an obvious consequence of the memory size reduction. But 1000U has separate user's manual. For some reason, they had decided to publish a new manual rather than to update the existing one (the easiest way). Perhaps there are more functional restrictions.

[Martin72]

The HDO1000U serie has released recently.

If I were rigol, I would have taken care of the old series first.

[Kurt_!]

The HDO1000U serie has released recently.

If I were rigol, I would have taken care of the old series first.

Yes, that would be right.
There is still a lot to do!
But they would rather build 10 more Ozis before they......

[thm_w]

There is nothing new here, the manual is from 2023.
There is also no point to purchase it unless it goes on clearance, as the cost of DHO1204U is currently the same as the DHO1074 which is superior.

Probably specifically made for a university bid, as related to Daves recent video.

[Njk]

If I were rigol, I would have taken care of the old series first.

Sure but I think in this case it's OK. It's an evolutionary version. The real problem is that they are seemingly unable to finish any product because of frequent revolutions (Android, processors, etc., and the rumors about new chipset in the pipeline are circulating). But U looks like an abridged HDO1000. Indeed, it might be related to something like a university bid. Anyway it's a minor change that does not naturally require a dedicated SW branch, so it's unlikely the developers are much disturbed by this. BTW HDOs does not look abandoned so far, there is a long list of fixes in the latest release notes (of 2024/03/27). What's terribly wrong with that scopes at the time?

[ebastler]

What's terribly wrong with that scopes at the time?

A very slow "recording" mode with abysmal waveform (trigger) rates comes to mind, which Rigol have apparently tried to gloss over with the "UltraAcquire" mode for better numbers in the spec sheet. Also, a rather limited FFT implementation (no averaging or max hold) with a buggy Flattop window function -- I don't think the recent firmware upgrade has changed that?

More fundamentally, I find it very odd that Rigol offers a product family in this price range (up to the DHO4000!) which does not provide any options for digital inputs, built-in function generator or control of an external generator. I would have expected to see enhanced models with these capabilities before Rigol launch a scaled-back -U version. Especially given the fact that these options are available in the low-end DHO900 series, which is based on the same software platform.

[thm_w]

DHO900S is a $770 scope. You've added $330 to the price of a DHO800 just to get a wimpy built in LA and Sig gen. Not worth it.
I'd rather put that money towards a good external gen, which yes you are right should really be supported via network or USB control.

[rpro]

What's terribly wrong with that scopes at the time?

A very slow "recording" mode with abysmal waveform (trigger) rates comes to mind

Fast enough (on DHO800 at least)  for some use cases....e.g., see attached.

[ebastler]

Fast enough (on DHO800 at least)  for some use cases....e.g., see attached.

Thanks for sharing the video. It shows 270 waveform captures in 3 seconds or so, around 10 ms per capture. But each actual sweep only takes 500 µs. So what is the scope doing in the meantime?

[ebastler]

DHO900S is a $770 scope. You've added $330 to the price of a DHO800 just to get a wimpy built in LA and Sig gen. Not worth it.
I'd rather put that money towards a good external gen, which yes you are right should really be supported via network or USB control.

I am not advocating the DHO900 in particular. Rigol's design choice to divide the available sampling rate between the analog and digital inputs is very unusual and quite disappointing, so I agree that the built-in LA is compromised. But I would expect to have proper LA inputs in the DHO1000 and 4000 series which don't hamper the analog performance, as offered in the MSO5000 or even the DS1000Z Plus.

Regarding the signal generator, personally I also prefer an external one without too many compromises. If Rigol could implement the option to drive an external Rigol generator for automated Bode plots, that would be ideal in my opinion. But for whatever reason they have never offered this in any of their scopes.

[rpro]

Fast enough (on DHO800 at least)  for some use cases....e.g., see attached.

Thanks for sharing the video. It shows 270 waveform captures in 3 seconds or so, around 10 ms per capture. But each actual sweep only takes 500 µs. So what is the scope doing in the meantime?

Waiting for the next burst, among other things.

[ebastler]

Thanks for sharing the video. It shows 270 waveform captures in 3 seconds or so, around 10 ms per capture. But each actual sweep only takes 500 µs. So what is the scope doing in the meantime?

Waiting for the next burst, among other things.

Alright. So how fast can the scope record when the occurence of signals is not the limiting factor?

When I had a DHO1074 for a while, the best I could get was less than one shot every 5 ms, even for much faster signals and trigger rates. And the stored time stamps for the recorded traces did not seem real, they did not match stop-watch time.

Here's my list of some reasons for eventually returning the scope. Not sure whether anything has been changed by a firmware update in the meantime? Of course, others might not consider these as critical and will be happy enough with the Rigol.

[xs.over]

Could anyone please share DHO1000 firmware version older than 00.02.13.00.07
Thanks in advance

[egonotto]

Hello,

I have
00.02.00 from 2022-11-07
00.02.04 from 2022-12-14
00.02.07 from 2023-05-17
00.02.11 from 2023-08-17
00.02.12 from 2023-10-18
00.02.13.00.07 from 2024-06-17

Which version do you want?

Best regards
egonotto

[xs.over]

00.02.00 from 2022-11-07
00.02.04 from 2022-12-14
00.02.07 from 2023-05-17
00.02.11 from 2023-08-17
00.02.12 from 2023-10-18

Hello, Buddy.
I'd be glad if you could share these versions of FW upgrade files with community.
Actually, I'm looking for old FW upgrade versions because I've got my hands on DHO1000 series oscilloscope with a pretty old firmware installed 01.01.26
Guess this may be the reason why it can't get thru regular FW upgrade procedure with latest firmware upgrade file.
Thanks in advance

[egonotto]

Hello,

I send you a message good luck.

Best regards
egonotto

[ebe23]

Hi,
Anybody noticed Firmware 2.14 for the DHO4000?

Found it while collecting informations about the scope.

[thm_w]

Thanks, works ok here on hacked DHO1000, release notes:

00.02.14 2025/06/23
     - Fixed inconsistent fine adjustment step of vertical gears
     - Fixed cursor cannot reach input position
     - Modified inconsistent significant digits of cursor results
     - Added probe attenuation setting in channel interface
     - Fixed DEV value of measuring item being 0
     - Fixed waveform clearing issue during scrolling
     - Fixed abnormal YT waveform display
     - Fixed crash on all measurements
     - Improved XY trace clarity
     - Fixed large difference when saving screen waveforms
     - Fixed significant digit inconsistency when recalling measurement values
     - Fixed failure to set webcontrol time
     - Fixed occasional boot with no waveform
     - Fixed waveform disappearance after STOP in SCAN mode
     - Added function to add measurements via rotary knob  - this lets you use two knobs to select, not that useful
     - Fixed glitches in ROLL mode
     - Fixed USB disconnect issue
     - Fixed offset issue shortly after self-calibration
     - Fixed CH1 auto-open when loading last values
     - Fixed first I2C decode failure
     - Fixed unable to fine-tune ZOOM at large time-base
     - Fixed inability to save uppercase folder via commands
     - Fixed wrong probe recognition of PCA1030
     - Fixed boot failure when loading last values
     - Fixed abnormality in setting probe ratio
     - Fixed no prompt after PVA7250 calibration
     - Added follow ruler function
     - Fixed mismatch between ZOOM and MAIN waveforms
     - Fixed first trigger failure when loading last values
     - Fixed change in measurement value after adjusting vertical gear

"- Added probe attenuation setting in channel interface"
This is nice to have, also defaults to 10x can't remember if it did that before.

[Kurt_!]

I just wrote to Rigol again recently...
Finally, I heard back. I can't believe it.
I have to test it in the next few hours!
But now I need to sleep.

[sorenkir]

No problems with this update. All options remain.
Fan speed hack to be redone.

I don't remember checking with the previous version, but now the video trigger works!

Michel.

[sorenkir]

There have also been changes to the RS232 decoding.
It doesn't seem to work properly anymore: decoding fails after the first byte...

[Kurt_!]

It's best to write to Rigol right away.

The last settings saved also leave a lot to be desired. (Brightness, window right, all values ​​are displayed.)

[Frex]

Hi all,

I also upgraded my upgraded DHO1074 with success.
Anyway, I noticed that self calibration finish always with a "failed" message.
 I looked all channels and on all scales and nothing seem to be wrong.
 I don't remember that it was doing that before....
Does anyone seen this after the upgrade?
Regard.

FRex

[Kurt_!]

Hi all,

I also upgraded my upgraded DHO1074 with success.
Anyway, I noticed that self calibration finish always with a "failed" message.
 I looked all channels and on all scales and nothing seem to be wrong.
 I don't remember that it was doing that before....
Does anyone seen this after the upgrade?
Regard.

FRex

Everything's OK for me.
Of course, it reset all the values.
2xTested

[voltsandjolts]

Everything's OK for me.

Good for me too. DHO1074 Firmware 2.14