EEVblog Electronics Community Forum
Products => Test Equipment => Topic started by: Mechatrommer on September 09, 2018, 06:03:42 pm
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while looking for handheld/portable scope... i cant find they are mentioned here, so i just throw it here in case someone looking, if already mentioned, then this is double post ;D. from the last year search, still the recommended unit are the 1 - 5MSa/s Arm DSO variant, there is another 10MSa/s, but below is claimed to be 100MSa/s. if we go Nyquist boundary, this is 40MHz scope. 600V input etc etc, you can read...
DSO NANO3
New Mini Size Portable Digital Oscilloscope 1.8 inch LCD Display 20MHz 100MS/s
$44 at https://www.ebay.com.my/itm/New-Mini-Size-Portable-Digital-Oscilloscope-1-8-inch-LCD-Display-20MHz-100MS-s/253585913047?hash=item3b0ae5f4d7:g:7bMAAOSwfXFbM1YL (https://www.ebay.com.my/itm/New-Mini-Size-Portable-Digital-Oscilloscope-1-8-inch-LCD-Display-20MHz-100MS-s/253585913047?hash=item3b0ae5f4d7:g:7bMAAOSwfXFbM1YL)
similar look and spec, 800V input
DSO168 Handheld mini pocket digital oscilloscope 20M bandwidth 100M sampling
$42 at https://www.ebay.com.my/itm/DSO168-Handheld-mini-pocket-digital-oscilloscope-20M-bandwidth-100M-sampling/123119301045?hash=item1caa7b71b5:g:8JIAAOSwIIha76hM (https://www.ebay.com.my/itm/DSO168-Handheld-mini-pocket-digital-oscilloscope-20M-bandwidth-100M-sampling/123119301045?hash=item1caa7b71b5:g:8JIAAOSwIIha76hM)
review, only a few, not really comprehensive...
youtube=N_7O2fKFwEQ
youtube=C0itfcpflpU
youtube=ubxJCffi9yQ
now this is another... 200MSa/s @ $78.. 800V input 2KSamples memory 128KBytes ... can be "stocked" whatever that means (i guess "stored")
DSO338 NANO PRO 30MHz 200MSa/s Mini Portable IPS LCD Digital Oscilloscope
https://www.ebay.com.my/itm/O120-DSO338-NANO-PRO-30MHz-200MSa-s-Mini-Portable-IPS-LCD-Digital-Oscilloscope/302852716371?hash=item46836db753:g:Y80AAOSw2qdbe6TR (https://www.ebay.com.my/itm/O120-DSO338-NANO-PRO-30MHz-200MSa-s-Mini-Portable-IPS-LCD-Digital-Oscilloscope/302852716371?hash=item46836db753:g:Y80AAOSw2qdbe6TR)
edit: wait, i think it has function generater, that 2000 waves he's talking about that can be stocked...
no review in youtube that i can find yet...
fwiw...
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One channel, 20MHz bandwidth, doesn't seem totally unreasonable.
I bet the firmware is horrible though.
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I bet the firmware is horrible though.
LOL, it is. For instance they show identical RMS value 1.77V for various (sine/triangle/square) 5VPP waveforms :palm: Seems like they just do "KISS approach", RMS = VPP/(2*sqrt(2)) for any waveform :-DD
Picture from eBay sales link (https://www.ebay.com.my/itm/DSO168-Handheld-mini-pocket-digital-oscilloscope-20M-bandwidth-100M-sampling/123119301045?hash=item1caa7b71b5:g:8JIAAOSwIIha76hM)
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Some of the previous instances of these DSOs were only useful to see some lines on a screen; their interface was truly terrible, but they were based on microcontrollers and were quite slow. At 20MHz, I wonder if they copied part of Labnation's oscilloscope.
https://www.lab-nation.com (https://www.lab-nation.com)
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https://www.lab-nation.com (https://www.lab-nation.com)
some funny thing on the spec, "MHz/s" sampling rate and i've never seen an FPGA that is not "100% silent" https://www.lab-nation.com/#specifications (https://www.lab-nation.com/#specifications) and at $229? its not a wonder of the world. just add another $100 and we get 1GSa/s DSO
One channel, 20MHz bandwidth, doesn't seem totally unreasonable.
I bet the firmware is horrible though.
one channel is the real limiting factor, but for new learner who just want to see a signal, $40-80 is another ration saving alternative. looking at the circuit and how they do it 100MSa/s @ $40 will be interesting... maybe i can get one if i have money and time to burn.
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I used a DSO Quad for about a year. It was very useful, compared to not owning any oscilloscope at all, but the user interface is a disaster.
The firmware on those got a lot better after some open-source types worked on it a bit but the button presses needed to adjust anything is like a video game. Long press button A, short press button C, three clicks left on E, etc.
one channel is the real limiting factor
Yep. No ability at all to correlate two signals is a deal breaker.
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one channel is the real limiting factor, but for new learner who just want to see a signal, $40-80 is another ration saving alternative.
In 40-80$ range there are much better (USB) scopes with bigger screens (rofl) and two channels as well:
48MSps 2 channel Hantek 6022BE ~50$ on Aliexpress
You can get 100MSps 2 channel Owon-VDS1022 for 80$ on Amazon
New learner does not need pocket scope, he will be fine using his PC as scope screen.
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You can get 100MSps 2 channel Owon-VDS1022 for 80$ on Amazon
If so, stretch a few more $ and get the VDS1022I for the advantage of its galvanic isolation, your PC will thank you one day!
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https://www.lab-nation.com (https://www.lab-nation.com)
some funny thing on the spec, "MHz/s" sampling rate and i've never seen an FPGA that is not "100% silent" https://www.lab-nation.com/#specifications (https://www.lab-nation.com/#specifications) and at $229? its not a wonder of the world. just add another $100 and we get 1GSa/s DSO
Exactly. I have really no idea how they are still in business - either their software is really much better than the average or they have educational deals.
If you like the form factor of a tablet and touchscreen, the Micsig tBook mini can be had for the same $100 added.
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If you like the form factor of a tablet and touchscreen, the Micsig tBook mini can be had for the same $100 added.
thats a $500 unit https://www.ebay.com.my/itm/Micsig-Tablet-Oscilloscope-100MHz-4CH-1GSa-s-tBook-TO1104-Battery-Serial-Decode/253802984379?hash=item3b17d633bb:g:~NIAAOSwRoZZiMBH (https://www.ebay.com.my/itm/Micsig-Tablet-Oscilloscope-100MHz-4CH-1GSa-s-tBook-TO1104-Battery-Serial-Decode/253802984379?hash=item3b17d633bb:g:~NIAAOSwRoZZiMBH)
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If you like the form factor of a tablet and touchscreen, the Micsig tBook mini can be had for the same $100 added.
thats a $500 unit https://www.ebay.com.my/itm/Micsig-Tablet-Oscilloscope-100MHz-4CH-1GSa-s-tBook-TO1104-Battery-Serial-Decode/253802984379?hash=item3b17d633bb:g:~NIAAOSwRoZZiMBH (https://www.ebay.com.my/itm/Micsig-Tablet-Oscilloscope-100MHz-4CH-1GSa-s-tBook-TO1104-Battery-Serial-Decode/253802984379?hash=item3b17d633bb:g:~NIAAOSwRoZZiMBH)
You're comparing the 2 channel LabNation SmartScope with a 4 channel Micsig tBook mini. The 2 channel 100MHz Micsig tBook mini is the TO1102 (https://www.ebay.com/itm/Micsig-TO1102-TO1104-Digital-Tablet-Oscilloscope-100-MHz-2-Channel-4-Channel/302230014838) which is $400.
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If you like the form factor of a tablet and touchscreen, the Micsig tBook mini can be had for the same $100 added.
thats a $500 unit https://www.ebay.com.my/itm/Micsig-Tablet-Oscilloscope-100MHz-4CH-1GSa-s-tBook-TO1104-Battery-Serial-Decode/253802984379?hash=item3b17d633bb:g:~NIAAOSwRoZZiMBH (https://www.ebay.com.my/itm/Micsig-Tablet-Oscilloscope-100MHz-4CH-1GSa-s-tBook-TO1104-Battery-Serial-Decode/253802984379?hash=item3b17d633bb:g:~NIAAOSwRoZZiMBH)
You're comparing the 2 channel LabNation SmartScope with a 4 channel Micsig tBook mini. The 2 channel 100MHz Micsig tBook mini is the TO1102 (https://www.ebay.com/itm/Micsig-TO1102-TO1104-Digital-Tablet-Oscilloscope-100-MHz-2-Channel-4-Channel/302230014838) which is $400.
The TO1072 (70MHz, 2 channels) is $329 at Amazon US (https://www.amazon.com/Micsig-Digital-Tablet-Storage-Oscilloscope/dp/B075R4VNCZ).
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those are near DS1054Z (proper scope) price already... yeah if you can afford that.
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Mecha, a portable unit has its uses and benefits when compared to a bench scope, and both the Micsig and the DS1000Z are quite comparable in its features. It is great to live in a time with so much choice.
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... I wonder if they copied part of Labnation's oscilloscope.
https://www.lab-nation.com (https://www.lab-nation.com)
I was in contact with the owner of this company. I told hime that he was so close to making a major dent in the portable automotive oscilloscope market (dominated by the over priced PicoScope). A few software tweaks would get him half way there. 4 channels and deeper buffers and keeping the price in the same ball park and he would crush PicoScope !
This was almost 1 year ago and I have heard no more.