New 12bit 500MHz Micsig scope WITH knobs [Mic-OPI] MHO5004-12bit / MDO5004-8bit

[egonotto]

Hello,

Unfortunately, I can't send the files from a plugged-in USB drive to the PC via FTP using the ES Explorer.

I recorded a video that has a resolution of 1920 x 1200. 94 seconds take up 66 MB.

Best regards
egonotto

[egonotto]

Hello,

the probes each have a unique serial number.
But the Passive Probe Compensation is not so stable.

Best regards
egonotto

[egonotto]

Hello,

if oscillographs were women, the MHO3 would have to be called Jolene and all other oscillographs could then credibly sing Jolene

Best regards
egonotto

[DaneLaw]

Hello,

if oscillographs were women, the MHO3 would have to be called Jolene and all other oscillographs could then credibly sing Jolene

Best regards
egonotto

I could imagine it's quite a looker with that 14" 1200p 16:10 screen, and just 3½ cm thinness.. Jolene' the mistress  https://youtu.be/L0eeSoU35wM?si=rjmtm888iyqZUf9h&t=66

Which apps do the MHO3 have in the app store.?
Likely the basic app programs like "Office" so you can work the data (CSV) in fx Excel, Word on the scope itself, there also seems to be ES-Filexplorer, and OTA -upgrade app, and this electronic interactive app for various measurements & calculation formulas, that Migsig tends to put on their scopes, but wonder if there is anything added specific to the MHO3?.

[egonotto]

Hello,

There are only four apps in the AppMarket. But you could probably install apps from the local memory or a USB disk. It would be practical to have an app that can exchange files with the PC and also recognize inserted USB disks.
I can't manage to copy files between the local memory and the USB disk.
It would be nice if the PC software could copy wave files directly to the PC.
I was also unable to put the MHO3 into developer mode.

Best regards
egonotto

[egonotto]

Hello,

my MHO3 had no filter due to a fault that has since been rectified.
ch1 is 1 mV/div and the FFT is from ch1.

Best regards
egonotto

[tautech]

Hello,

my MHO3 had no filter due to a fault that has since been rectified.
ch1 is 1 mV/div and the FFT is from ch1.

Why is it Ch1 V/div settings are not clearly displayed in a tab and you need state them ?

Each to their own but I only need glance at the V/div setting and mostly do the maths in my head for signal amplitude like we all did in the old days with CRO's without measurements.

So must we engage a channel measurement to know what the signal amplitude is ?

[egonotto]

Hello,

there is a band on the right-hand side which also contains the channel settings. However, not everything can be displayed at the same time. My selection in the picture was clumsy. I had only taken the picture for myself and only recently had the idea to post it. In the picture "1 V 10 MHz bandwidth open input.jpg" you can see which information is usually in the right band.

Best regards
egonotto

[tautech]

Hello,

there is a band on the right-hand side which also contains the channel settings. However, not everything can be displayed at the same time. My selection in the picture was clumsy. I had only taken the picture for myself and only recently had the idea to post it. In the picture "1 V 10 MHz bandwidth open input.jpg" you can see which information is usually in the right band.

Best regards
egonotto

V/div and s/div must always be visible and never hidden or in menus IMHO.
This would exclude any DSO from possible selection in my world.

[egonotto]

V/div and s/div must always be visible and never hidden or in menus IMHO.
This would exclude any DSO from possible selection in my world.

Hello,

yes, I'm almost of the same opinion. The only thing I don't share is the "exclude" part.
I don't regret buying the MHO3.

Best regards
egonotto

[DaneLaw]

If its the serial right side banner, then its just the arrow down below to get the native ch info banner.

For a modern dedicated bench oscilloscope with 12-bit vertical resolution, I find screen size & resolution very important, as that is my info-canvas and I don't wanna be undermined by something as  fundamental as the screen.
- can you work on a small screen with low resolution' - of course, works okay, as we have seen for decades.

I understand on a mobile handheld scope that there are limits on how big you can make the screen without making it cumbersome to move around and hold one-handed, but on a bench oscilloscope where size is relative..
nope, make the screen big, and put a big gorgeous high-resolution screen of good quality in it.! (that is so fundamental in a modern 2024 oscilloscope, not least when you get up in a certain pricelevel)

1920x1200p = above 2.3mio pixels at 14" (MHO3/MDO/ETO series)
1024x600 = a tad over 600k pixels at 10".. On a high-resolution benchscope, then at least suit it up with a matching big "high-resolution" screen.

On MHO3 I believe that screen is actually a 16:10 ratio, so you get even more vertical screen, vs a 16:9 for those precious vertical bits., which is definitely a plus.

The MHO3 Micsig GUI looks (for a good part) to be the same as previous Micsig models, just with some added bells & whistles (that IMO was long overdue) and obviously way higher resolution, as my battery-unit are 600p 8" screen and a fraction of the 1200p, as on MHO3
It's a UI that is based around a touch interface, - and then later they added knobs, the majority of Micsig oscilloscopes are without knobs, its only STOxxxxC/E and MHO3 & MDO line, that got knobs as far as I remember.

And one of the big hurdles (IMO, at least in previous Micsig models) I reckon Its a shame that Micsig didn't optimize more of their features for knobs & button interface..- on my unit there are 7x clickable potentiometer knobs - and 23 buttons incl. a shift-button that will open up for secondary features for each of these, so you have a lot of tools to work with if Micsig actually optimized for it.
I would have loved if one of the knobs was dedicated to intensity or heatmap or the variable filters, fx through the lightable shift-button.

An example of the UI on the older 8" STOxxxC/E  (I really like the variable bw-filtering, which goes from full bw down to 30KHz on my unit, with 1k Hz intervals,and where it seems to go down to as low as 30Hz on MHO3)

BW filt 3.18

[egonotto]

Hello,

here are new noise measurements.

Best regards
egonotto

[DaneLaw]

What is your peak waveform update rate on the MHO3, just in normal auto-memory-mode, where the scope controls the 360Mpts
I don't think Micsig operates with these elevated waveform update seq modes, as we see from some vendors, like fx DHO series from Rigol, where the promoted values, reflect a severely handicapped mode while in practice it was more like 1/20 that Dave was getting.

Im familiar with the official tolerances, but Micsig often put these quite conservative

[egonotto]

Hello,

it is 8.1 Hz with 360 MS
and 40 Hz with 10 ns/div and 1.8 kS
50 kHz with segmented memory 1 ns/div and 1.8 kS and 10000 segments.
But the intervals between individual trigger points are sometimes only about 1.1 us.

Best regards
egonotto

[DaneLaw]

If I recall correctly the spec sheet claims 230.000  wfm/s for the MHO3 with its 360mpts.  (in auto mem-mode??) though obviously peak, with a relatively fast timebase like 50ns and will vary greatly from timebase to timebase

// an older vid. +1min

[egonotto]

Hello,

what I still don't understand is why they use a Mic-OPI™ probe interface for the Aux Out.
It makes no sense to me. I don't know of any other oscilloscopes that use a probe interface for their outputs.

Best regards
egonotto

[egonotto]

Hello,

I can only achieve the 230,000 wfms/s in segmented mode. Otherwise maximum 40 wfms/s.

It looks like there are still errors. I also cannot change the brightness of the waveform.

Best regards
egonotto

[egonotto]

Hello,

with the new update, I am now achieving around 35 kwfms/s. But in bursts.
Now I can change the brightness of the waveform.

Best regards
egonotto

[egonotto]

Hello,

Dave's video about the SDS1000X HD prompted me to test the noise of MHO3 at comparable settings.

Best regards
egonotto

[joeqsmith]

Hello,

there is a band on the right-hand side which also contains the channel settings. However, not everything can be displayed at the same time. My selection in the picture was clumsy. I had only taken the picture for myself and only recently had the idea to post it. In the picture "1 V 10 MHz bandwidth open input.jpg" you can see which information is usually in the right band.

Best regards
egonotto

V/div and s/div must always be visible and never hidden or in menus IMHO.
This would exclude any DSO from possible selection in my world.

Agree.

The 100Mb file transfer doesn't really tell me much.  Can you try and stream the data off the scope (live) and let me know what you get for a sustained rate?    Try some of the music demos (again, I don't care about the X-Y but just looking for some idea on screen updates).   From your posts, sounds like it may be very slow.   Do their adapters (proprietary to BNC) hurt the performance?  Do they have a probe detector ring?  Does it support the standard 1X 10X id?  Auto scale?

[DaneLaw]

It uses the MicOpi probe interface.
Where you can use Micsig's own proprietary accessories that calibrate on the fly. https://www.micsig.com/SigOFIT/

[joeqsmith]

It uses the MicOpi probe interface.
Where you can use Micsig's own proprietary accessories that calibrate on the fly. https://www.micsig.com/SigOFIT/

I doubt I would have a use for any of their proprietary probes at home.  For general use, I just want the standard BNC that supports the full BW.  Sounds like the scope comes with the adapters but I didn't see if it hurts the performance.  Doubt it would at these lower frequencies but thought I would ask.   

[egonotto]

.....

The 100Mb file transfer doesn't really tell me much.  Can you try and stream the data off the scope (live) and let me know what you get for a sustained rate?    Try some of the music demos (again, I don't care about the X-Y but just looking for some idea on screen updates).   From your posts, sounds like it may be very slow.   Do their adapters (proprietary to BNC) hurt the performance?  Do they have a probe detector ring?  Does it support the standard 1X 10X id?  Auto scale?

Hello,

The file transfer reaches about 100 MB/s, which is 800 Mb/s. An FTP server is started on the Micsig and I use FileZilla on the PC, as suggested in the manual.

Enclosed is an XY demo:
https://youtu.be/xSEX9PKCCpo

Their BNC adapters have no probe detector ring.

The adapters are electrically comparable to BNC adapters, plug to socket. I cannot yet say how they work at higher frequencies.

Best regards
egonotto

[joeqsmith]

Thanks.  I am really wanting to know the sustained rate, not burst.   Do you have a way to download live data from the scope while it is collecting and then measure the transfer rate?  Maybe have it collect for a few minutes and see what you get.  I assume they support reading the data this way rather than FTP.   

Good to know on the BNC adapters.   

I wonder on the XY music, is the screen update rate so slow because you are capturing a lot of data?  Or is this pretty much what you are normally seeing? 

.....

The 100Mb file transfer doesn't really tell me much.  Can you try and stream the data off the scope (live) and let me know what you get for a sustained rate?    Try some of the music demos (again, I don't care about the X-Y but just looking for some idea on screen updates).   From your posts, sounds like it may be very slow.   Do their adapters (proprietary to BNC) hurt the performance?  Do they have a probe detector ring?  Does it support the standard 1X 10X id?  Auto scale?

Hello,

The file transfer reaches about 100 MB/s, which is 800 Mb/s. An FTP server is started on the Micsig and I use FileZilla on the PC, as suggested in the manual.

Enclosed is an XY demo:
https://youtu.be/xSEX9PKCCpo

Their BNC adapters have no probe detector ring.

The adapters are electrically comparable to BNC adapters, plug to socket. I cannot yet say how they work at higher frequencies.

Best regards
egonotto

[egonotto]

Thanks.  I am really wanting to know the sustained rate, not burst.   Do you have a way to download live data from the scope while it is collecting and then measure the transfer rate?  Maybe have it collect for a few minutes and see what you get.  I assume they support reading the data this way rather than FTP.   

Good to know on the BNC adapters.   

I wonder on the XY music, is the screen update rate so slow because you are capturing a lot of data?  Or is this pretty much what you are normally seeing? 

Hello,

I don't know if you can stream data directly. There is PC software, but it was made for older Micsig devices. When I use this software (similar to a web server with other scopes), the MHO3 crashes from time to time. However, the MHO3 has never crashed when I have not connected it to the PC software.

I tried various settings for the XY display and then used the best one. I set a low-pass filter at 200 kHz so that the lines are not too noisy. The signals came from the two wave generators of an Analog Discovery 2. The Analog Discovery 2 has a better XY display.
The waveform update rate used to be less than 40 wfms/s.
I contacted Micsig and a few days later they updated the firmware and I am now getting about 35 kwfms/s. These are faster bursts with a long pause.
My impression is that the MHO3 is not yet fully developed, but that Micsig is very helpful.

Best regards
egonotto

PS: My MHO3 has about 24 GB of memory free from the built-in 32 GB.