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

[egonotto]

Hello,

250 MHz with 500 mV. The MHO3-2504 really seems to have a bandwidth of 250 MHz.

Best regards
egonotto

[DaneLaw]

Hello,

I don't know why the images are only 1348 x 843 pixels.
Enclosed 1 V/div and 1 mV/div with open inputs. This means +-5 V and +-5 mV, as the MHO3 has a grid of 10 * 12.

Best regards
egonotto

Seems weird, as the screen dump pictures are very distorted..how do you get these pictures?

Would love some RL picture of the scope, with that huge 1200p screen and how big it actually is in real life....

[egonotto]

Hello,

FFT

Best regards
egonotto

[DaneLaw]

Hello,

FFT

Best regards
egonotto

All your pictures are extremely distorted from a 1200p.



Micsig older knob-battery-model STOxxxC/E but 600p screen (4:3)

FFT


on that unit, its the same Android OS (I reckon) so for wireless yoi just open up your wifi like on a tablet and then you look up your WLAN IP and connect to that or download their APK (Android) IPA (iOS) or EXE (Windows) if you wanna control it remotely..
Or you can go into the scopes own rudimentary app store and install the app you want..depending on what you wanna do.
If it simply pictures and videos.. and getting wireless access to your scopes rootfolders.. Android FTP app.. works well. (I would guess it also on this scope as it seem to be build on Micsig's Android GUI)

[egonotto]

Hello,

the MHO3-2504 does not have Wi-Fi. But you can redirect screenshot to a USB drive. The instruction manual is poor. I don't know how to connect the MHO3 to the PC via USB, I can't get the ES file explorer to work, I can't get internal files.
Attached is a screenshot of the USB drive

PS: You have to install the ES file explorer first. Then one get the internal files

Best regards
egonotto

[DaneLaw]

Hello,

the MHO3-2504 does not have Wi-Fi. But you can redirect screenshot to a USB drive. The instruction manual is poor. I don't know how to connect the MHO3 to the PC via USB, I can't get the ES file explorer to work, I can't get internal files.
Attached is a screenshot of the USB drive

PS: You have to install the ES file explorer first. Then one get the internal files

Best regards
egonotto

Yeah, my bad - it do seem like it's not built-in from scratch like previous Micsig versions, their MHO3 manual refers to plug-in < Wifi USB module. (not sure if any somewhat modern Android WIFI dongle will do?)

https://static.eleshop.nl/mage/media/downloads/MHOHighResolutionOscilloscope3SeriesUserManual.pdf  (ctrl+f and search for wifi)

Weird decision from Micsig, as their MHO3 manual do explain about portable WLAN hotspot, tethering etc.. all things I also recall also are on the older Micsig scopes.
so without a dongle atm, seems to rely on LAN cable.

[egonotto]

Hello,

I'm afraid decoden and segmented don't go together.

What's nice is the variable low-pass and high-pass

Best regards
egonotto

[egonotto]

Hello,

After several unsuccessful attempts, I managed to connect to the PC via USB-C. Not every cable and not every port will work. But as they say in Germany: "Duck good all good"

Best regards
egonotto

PS: 1 V/div 10 MHz bandwidth open input and 2.4 mV rms noise.
PS: Sorry but this screenshot is much easier to make. The one with the good image quality means a lot more effort.

[egonotto]

Hello,

slowly I like the MHO3-2504 more and more. If Micsig and Siglent were to build a device with the best of both together, others would have to dress very warmly.

Best regards
egonotto

[DaneLaw]

Hello,

After several unsuccessful attempts, I managed to connect to the PC via USB-C. Not every cable and not every port will work. But as they say in Germany: "Duck good all good"

Best regards
egonotto

PS: 1 V/div 10 MHz bandwidth open input and 2.4 mV rms noise.
PS: Sorry but this screenshot is much easier to make. The one with the good image quality means a lot more effort.

How do you exactly make that screenshot? as it almost got a low degraded thumbnail grading.

I cant forget that the MHO3 doesn't got WIFI built in from scratch    and you need to rely on some "WIFI USB module" that the manual doesn't specify, from where.
Weird decision in my book, when you have in mind, Micsig's whole portfolio of wireless apps & use cases and how much the MHO3 manual highlight many of these wireless things you can do with this scope..
sure' it's likely copypasted from older Micsig models, as it's clearly the same fundamental Micsig GUI.

Obviously a reason, maybe they expect to sell users that accessory or you can constantly keep the WLAN protocols up to date by purchasing new modern WLAN USB dongle, but no no no.. they could do both. (pluggable + built-in) as its only a scope, very limited what WLAN speeds you actually need.

I would love to see some real life pictures of the unit, with that massive 1200p 14" screen and the 3½ cm thinness on its stand...
Could imagine it would look a little like an oscilloscope-pendant to these  all-screen PCs like Surface Studio2 or Apples Imac.

[egonotto]

Hello,

Yes, the MHO3 looks impressive and is quite heavy. My problem with it is that I have no room for it. It's very wobbly at the moment. The screen is bigger and has a higher resolution than the R&S MXO4. It's a real shame that it doesn't have WLAN. I tried a very old USB WLAN adapter, but there was no response.

Best regards
egonotto

PS: I took the screenshot from the PC program (there is a button for this). this is convenient and the file is saved to my ramdisk.

[DaneLaw]

PS: I took the screenshot from the PC program (there is a button for this). this is convenient and the file is saved to my ramdisk.

Aha, I see - so it's Micsig's "Remote Display" exe app, that your screen dumping from, and in lack of WLAN you'r simply connecting with a USB cable.
If that is the case, and its also the resolution you're getting on Remote Display, then it's quite telling about the very crude attempt (sofar) to implement this MHO3 into that software, and likely running the same low feed as the case with lower res Micsig scopes' when they connect through WLAN.

I know it's early days for this series, and I shouldn't be too critical, and not many would turn to a remote display approach with such a massive gorgeous 1200p 14" screen and if they wanted a remote display - it would likely be trough HDMI/video-out to circumvent that degraded feed.

Are the MHO3 options built in from scratch.? (ref. attached screen-dump from the manual)
Micsig tends to do that, at least to an extent since 2019.. on my unit, it was 429/1553B that was labeled as not installed, but I haven't checked those in practice.

[egonotto]

Hello,

 ARINC-429, MIL-STD-1553B are not installed.

Although the spec sheet says:
Standard decodes: RS-232/422/485/UART, CAN, CAN FD,
LIN, SPI, I²C, ARINC-429, MIL-STD-1553B

But I can choose it.

The Software is from 17.8.2023

Best regards
egonotto

[egonotto]

Hello,

I have the impression that not many people own an MHO3 yet.

Best regards
egonotto

[egonotto]

Hello,

if decoding with segmented memory would still be possible and they would add HIRES and maybe WLAN as a luxury on top, then that would be a great device.

Best regards
egonotto

PS: And an API so that you could add the skills yourself.

[scoper007]

Send Micsig message, give them your SN for the MHO 3, they'll provide the 429 and 1553B for free, just like I got for my MHO3-5005. Cheeeeers.

[radiolistener]

I wonder, is it possible to implement SDR radio firmware for this oscilloscope, it already has high performance RF frontend, processing FPGA and display... 

[egonotto]

Send Micsig message, give them your SN for the MHO 3, they'll provide the 429 and 1553B for free, just like I got for my MHO3-5005. Cheeeeers.

Hello,

thanks. I haven't contacted Micsig yet, because 429 and 1553B are still selectable. You can turn on these decoders. I just couldn't test further due to a lack of signal.

If you activate a decoder and use segmented memory, are the individual segments decoded on your device?

With SPI, the segments on my MHO3-2504 are not decoded.

Best regards
egonotto

[egonotto]

Hello,

Aux Out

Best regards
egonotto

[egonotto]

Hello,

probe-loop.

I have no idea what is being captured. It's near my laptop.

Best regards
egonotto

[egonotto]

Hello,

I have the impression that the beam is getting thicker at the edge.

Best regards
egonotto

[egonotto]

Hello,

1 kHz bandwidth that is a little low for RF. A 1 kHz rectangle no longer looks so rectangular.

Best regards
egonotto

[egonotto]

Hello,

I got the license for 429 and 1553B from Miscig. They also sent me a Chinese SCPI programming manual. Unfortunately, I was not able to establish contact with the MHO3 with the programs of Peter Dreisiebner. But with putty it went.

Best regards
egonotto

[egonotto]

Hello,

I forgot to mention that the LAN connection is very fast. With FTP, a 720 MB file took a good 6 seconds. So over 100 MB/s.

Best regards
egonotto

[DaneLaw]

Hello,

I forgot to mention that the LAN connection is very fast. With FTP, a 720 MB file took a good 6 seconds. So over 100 MB/s.

Best regards
egonotto

Do you still have video ability on MHO3 / hopefully in 1200p?
On the older Micsigs, it's on the main screen desktop, where you roll down the menu like it's a standard fx Samsung Android tablet, and there you got video or picture symbol and then a little timer, up in the right corner will count the time, and when you wanna stop recording your waveforms etc, you just click that small timer info-symbol up left, and you don't have to go out to the main menu..

I didn't encounter any external storage limits when I checked it a year or two back, I could connect gen4 NVMe 2TB drives and all 2TB were shown on the scope as accessible. (STOxxxxC/E)
Just as long I had the NVMe drive in a TypeC to NVMe enclosure, it would obviously not run under NVMe speed protocols, but that goes without saying for an external NVMe drive through the scopes USB socket, but it worked fine as an external storage drive at reduced speed.