Author Topic: Best portable 4ch scope  (Read 2317 times)

0 Members and 1 Guest are viewing this topic.

Online Fungus

  • Super Contributor
  • ***
  • Posts: 11479
  • Country: 00
Re: Best portable 4ch scope
« Reply #25 on: October 12, 2020, 06:12:19 am »
Any chance you can plug in a USB stick and grab screenshots? That's mighty useful and I don't want to have to connect up a laptop via USB or Ethernet just to capture screenshots. It says you use a mouse so I presume it has at least one USB port.

The micsig is an Android tablet, it runs Android apps (the oscilloscope is just a built-in app!)

This video is quite informative:



For "four channel portable 'scope" I don't think you do better than that.

(hell, I'm not even sure you can do much better in a desktop 'scope in that price range...)

« Last Edit: October 12, 2020, 06:48:54 am by Fungus »
 

Offline 2N3055

  • Super Contributor
  • ***
  • Posts: 3068
  • Country: hr
Re: Best portable 4ch scope
« Reply #26 on: October 12, 2020, 06:41:24 am »
1. E Plus has more acquisition memory.  C has 28MS total, E plus has 70 MS total. To me not worth doubling the price. All else is same AFAIK.
Then I agree. Not worth the price just for extra memory and waveform acq speed. Thanks for the confirmation.

Quote
2. Best view angle is at right angle or slightly above.  It has stand in the back that puts it at proper angle when on desk.
If the stand has it "leaning back" from straight up and down, then they presume your head will be above the scope, correct? Hence the comments about being "tall enough". I think I understand. The poor visibility would occur if your line of sight is below perpendicular of the screen. Do I have that correct?

Quote
3. It feels sturdy and good quality. Encoders are nice and firm. It has no major problems, but it's basic scope. It has no AC RMS measurement. It has no measurement statistics. You have table mode for decodes but only full screen. So it's ether graphic mode with waveform or table mode. You can't switch between graphic and table decoding without loosing data. There is no segmented memory. CAN is only basic CAN, there is no CAN FD.
That's OK, not buying it for protocol decode (have other solutions for that when necessary).

Quote
All in all, what i has works very well, it is good quality, battery runs for 5+ hours and is well worth the money for what it is. Question is : is it enough of the scope for you?
Sounds like it will do the job! I need a digital storage scope with four channels that can display analog waveforms to a few 10's of MHz. Traditional triggering is adequate. The ability to capture four signals and then zoom in/out and back/forth pretty much covers it. And it runs on a battery for 50%+ of a working day. If it's rugged enough to last a while - and it sounds like you think so - then we have a winner.

Any chance you can plug in a USB stick and grab screenshots? That's mighty useful and I don't want to have to connect up a laptop via USB or Ethernet just to capture screenshots. It says you use a mouse so I presume it has at least one USB port.

Hello!
just a quick recap

1.  :-+
2. Something like that. Mind you, it doesn't get invisible if you are below center line, but contrast starts washing out quickly. If it is on a shelf above you it's not that good. On a desk it's great pretty much anywhere. Word of warning, I'm 6'5"... :-DD
3. Protocol decodes do come with scope (check with dealer, in EU they all come free) and they work OK. In table mode you can interleave 2 decodes so you can see them in coherent time...
4. USB ? Sure it can. You also have internal 8 GB and can save REF traces, captures, screenshots and videos... Yes MP4 of something going on on the screen. It also has Ethernet and WiFi, and you can install internal FTP server so you can grab stuff from the PC directly...

Some other comments... It has very nice implementation of color grading, boots quite fast, BNCs are on the top (I was afraid they would get in a way but it's fine), you have a over the hand handle on left side to hold it safely, it has HDMI out (it looks great on 42" TV). Charger is powerful and seems good quality mechanically, but it's electrically noisy. A replacement medical grade PSU is recommended if you want to work plugged in. Battery is user changeable and available as spare part.

All in all, very handy little thing that seems to work just fine for a "grab and go" situations.. I have for half a year and it already paid itself off in just few interventions, where we could diagnose problem on the spot and just replace failed modules, instead of unmounting whole device and haul it back to office for diagnostics...

Regards,
SiniĊĦa
 
The following users thanked this post: fkfaraz

Offline DaneLaw

  • Regular Contributor
  • *
  • Posts: 72
  • Country: dk
Re: Best portable 4ch scope
« Reply #27 on: November 27, 2020, 02:40:16 am »


 their screen is too dim and has a very bad viewing angle.
Dim?, I'm getting above 400nits (414) when I check the brightness.. often need to turn it down indoors to 0-25%.

The biggest problem I have with the screen is the massive glare that can be a con, but they include an antiglare screen protector so one can take that approach.
But I do feel the latest OTA updates have made the touch- more inconsistent.
Here a slide with pictures of the screen and also the delay when on wireless.. Its around 0.200ms to 0.250ms in my test.
for 400bucks (1104C) with battery incl tax shipping etc I feel it's a steal, though +30USD for the Micsig bag..(love the mobility in lack of a bench)
But IM a noob with minor perspective and just trying to learn as I go, as a newcomer to DSOs but + for high res OLED panels in scopes (sooner the better  >:D )... that inky black looks wicked, and response rates are usually impressive on OLED panels, though perm retention, could be a hassle for scopes with static, though they don't need to run them as hard as we see on TVs or Mobiles/tablets, so could work,




Here beside a Samsung Tabs5e 1600P OLED

Video on the wireless feature from the scope to an Android tablet running the Micsig app. (works the same on Ipad or on PC) just a crude interface like you have on the scope itself. (any good third-party programs that can talk to these scopes?)
https://i.imgur.com/9K0mJxu.mp4

I think the screen is great for a scope in this price ballpark, as it ain't like the norm is much higher, Im left with the impression you need pursue fx models from R&S that from videos looks to have a gorgeous big screen (though reflective).

Here's a"direct-on" shot and one from the side.




I recall this is the lowest brightness.


and this is highest, I recall but some time since so not 100% sure and most of these pictures are dimmed down to not mess the cam-exposure.

and hmm, no problem to read EEVblog forum on the scope for information about scopes. :palm:.


A slideshow with many pictures of the Micsig screen
https://imgur.com/a/bZKztlL
Congrats with the Fluke, way out of my budget.




« Last Edit: November 27, 2020, 04:24:42 pm by DaneLaw »
 

Offline blueskull

  • Supporter
  • ****
  • Posts: 14214
  • Country: cn
  • Power Electronics Guy
Re: Best portable 4ch scope
« Reply #28 on: November 27, 2020, 03:06:01 am »
Congrats with the Fluke, way out of my budget.

I found out with some ferrite filter magics and some careful probe layout, the built-in inter-channel isolation allows me to reliably measure high side gate signals on even GaN/SiC power electronics, and this feature alone, if from Tektronix, would be in north of $40k (4*$9k probes and a $5k scope with TekVPI interface).

20dB less CMRR for 20dB less money, not a bad deal for me.
 
The following users thanked this post: 2N3055

Offline DaneLaw

  • Regular Contributor
  • *
  • Posts: 72
  • Country: dk
Re: Best portable 4ch scope
« Reply #29 on: November 27, 2020, 03:43:56 am »
Certainly don't sound like it, though "cost" is relative when it comes to pro-lab-gear.
as noted Im new to scopes, so more trying to make sense of it all, with a cheap 70USD FY6900/60mhz but sofar been impressed with the Micsig 1104C when you have the price in mind.   
Basic

Do like the mouse-support and you can plug scopevalues on the fly to datasheets on the units itself.


Though would have prefered that Micsig locked the 256intensity-grading feature to a specific knob (fx the top X or Y knob) perhaps with the shift button, as that grading-feature is vital, also appreciated the color-intensity grading aspect, and way more then I expected I would.

and I love that I have power in spades' with these 90watt capable adjustable DC + Powerdelivery + Qualcomm-QC powerbanks with 8x LG HG2 3000MAH in each..
And makes it very easy to just take a TypeC 12v PD-decoy-cable to DC. if you need more power away from home.. it only uses like 25watt
and the included AC to DC-charger (5A), is a spiky noisy fellow

- a plus with these low noise high current-powerbanks, and the 1104C also works fine with these cheap 35USD Hantek current clamps and quite accurate when you have it in current mode and amp values...



« Last Edit: November 27, 2020, 04:30:44 pm by DaneLaw »
 

Online Fungus

  • Super Contributor
  • ***
  • Posts: 11479
  • Country: 00
Re: Best portable 4ch scope
« Reply #30 on: November 27, 2020, 07:47:14 am »
Dim?, I'm getting above 400nits (414) when I check the brightness.. often need to turn it down indoors to 0-25%.

The biggest problem I have with the screen is the massive glare that can be a con, but they include an antiglare screen protector so one can take that approach.

I'm with you. I've had mine for a couple of weeks and there's no problem with brightness, only reflectivity.

The supplied screen protector completely fixes the reflectivity. They should install them at the factory.
 

Offline DaneLaw

  • Regular Contributor
  • *
  • Posts: 72
  • Country: dk
Re: Best portable 4ch scope
« Reply #31 on: November 30, 2020, 09:04:35 pm »
Are there no dedicated thread for the Micsig Tablet scopes here on EEVblog? (quite good value, IMO best bang for the buck hence the balance between portable and bench-scope on the market)  got no luck with the search and it ain't like it's a new scope, so would reckon it been analyzed upside down here.
More or less a thread where the community often evolves, where things like software, ethernet connectivity, and the UI-sockets with third-party software or even attempts hacking some of the very expensive decoding options that are not native-like 1553B & 429 that cost more than the unit itself..



Also, perhaps a thread for misc. problems that occurs with the Micsig scopes, like the PC software where the scaling was wrong and where you simply couldn't load the scope-suit SW unless you were in 100% scaling on windows.(fixed AFAIK)

I can see other users also asking in this thread for questions on the Micisig tablet scopes.
and sure you can always start one yourself, just puzzled and would reckon one were already here.
If there is a thread on another forum (english) would love the info.
« Last Edit: December 01, 2020, 04:01:46 am by DaneLaw »
 

Online Fungus

  • Super Contributor
  • ***
  • Posts: 11479
  • Country: 00
Re: Best portable 4ch scope
« Reply #32 on: November 30, 2020, 09:07:54 pm »
Are there no dedicated thread for the Micsig Tablet scopes here on EEVblog? (quite good value, IMO best bang for the buck hence the balance between portable and bench-scope on the market)  got no luck with the search and it ain't like it's a new scope, so would reckon it been analyzed upside down here.

I've been thinking of starting one. I bought a Micsig a few weeks ago and I'm very happy.

 

Online nctnico

  • Super Contributor
  • ***
  • Posts: 20151
  • Country: nl
    • NCT Developments
Re: Best portable 4ch scope
« Reply #33 on: November 30, 2020, 09:21:13 pm »
Are there no dedicated thread for the Micsig Tablet scopes here on EEVblog? (quite good value, IMO best bang for the buck hence the balance between portable and bench-scope on the market)  got no luck with the search

https://www.eevblog.com/forum/testgear/micsig-to1104-(similar-to-rigol-1104z)/msg1089548/#msg1089548

PS: You have failed your Google-fu classes!  >:D
There are small lies, big lies and then there is what is on the screen of your oscilloscope.
 
The following users thanked this post: DaneLaw

Offline DaneLaw

  • Regular Contributor
  • *
  • Posts: 72
  • Country: dk
Re: Best portable 4ch scope
« Reply #34 on: November 30, 2020, 09:26:12 pm »
Are there no dedicated thread for the Micsig Tablet scopes here on EEVblog? (quite good value, IMO best bang for the buck hence the balance between portable and bench-scope on the market)  got no luck with the search and it ain't like it's a new scope, so would reckon it been analyzed upside down here.

I've been thinking of starting one. I bought a Micsig a few weeks ago and I'm very happy.
I think you should, if there literally are no native thread on EEVblog for the Micsig tablet scope series, and your way more active than me' on EEVblog, after all, it is Android OS based scope, and quite a few people out there, that are quite competent in Android, so would be interesting to see what people could achieve while fronting inside Micsig custom Android ROM.

I tried some time back to sideload one or two apps, like IMGUR and also YT, so I didn't have to go thru the browser when uploading videos and pictures, but at first glance, it looks like this crude way of just sideloading of normal APK-apps are to some extent restricted.
Also been very, satisfied with mine.(sofar)
 

Offline DaneLaw

  • Regular Contributor
  • *
  • Posts: 72
  • Country: dk
Re: Best portable 4ch scope
« Reply #35 on: November 30, 2020, 09:32:40 pm »
Are there no dedicated thread for the Micsig Tablet scopes here on EEVblog? (quite good value, IMO best bang for the buck hence the balance between portable and bench-scope on the market)  got no luck with the search

https://www.eevblog.com/forum/testgear/micsig-to1104-(similar-to-rigol-1104z)/msg1089548/#msg1089548

PS: You have failed your Google-fu classes!  >:D

Yep, my search kung fu, needs Mr Miyagi
..needs to rub on and off, some more.
I reckon it was because I search for the modelnumber 1104C and STO1104C, needs to s it down a nudge.
Thx for the hint' will take a look.
 

Online Fungus

  • Super Contributor
  • ***
  • Posts: 11479
  • Country: 00
Re: Best portable 4ch scope
« Reply #36 on: November 30, 2020, 09:41:21 pm »
Looks like most of that thread is out of date now thanks to firmware updates and new models.

 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf