Products > Test Equipment
OWON VDS1022I Quick Teardown (versus the Hantek 6022be)
SIBtronics:
have the owon vds 1022i comming in the mail, decided on that, since i dont think i will need 4 channels or 250mhz single channel bandwidth any time soon, the thing is there is no catch, of course it has a lower bandwidth and lower sampling rate but with owon its you get what it says. my college uses (desktop) scopes from owon and they are decent. as for the record lenght idk. will check when it arrives
John Celo:
Too late, mine is already coming in the mail too!
With some ali coupons and sale got it for 26.88eur with 5day delivery. Not bad at all.
Was also considering HANTEK DSO2C10 for around 105eur.
HANMATEK DOS1102 (owon SD1102, 100mhz band, but 20mV/div) for around 85eur
HANMATEK DOS1104 (5mv/div, 100mhz, 4ch) for around 125eur
Didn't want to deal with hantek bullshit even at 'low' price of 105eur.
Was seriously considering DOS1104, but 125eur is almost 1/3th-1/4th the price of Rigol DHO802/DHO804.
I just don't know how hard the limited record length and trigger options of DOS1104 and other low end owon-derivatives affect their usefulness.
Maybe I should have gotten DOS1104 for 125eur, because opporunity to buy it at such price won't come again anytime soon.
Ordering oscilloscopes from AE (effectively no warranty) seems like a risky endeavour too.
Worst case scenario I wasted 27eur. Other things I have gotten from ali, like AN8008 for 13eur have been perfect for a beginner like me.
Gyro:
I think you'll be happy with your decision, especially at that price! Don't get too hung up on buffer length, memory is cheap these days on desktop scopes but the Tek TDS210, which still sells for healthy prices on ebay has precisely half as much and the 1022. The more expensive but lower bandwidth and sample rate Picoscope 2204 only has 8k too.
Higher USB bandwidth loading tends to go along with bigger buffer size. The Owon has particularly modest USB bandwidth requirements, hence it is possible to provide the highly desirable USB galvanic isolation VDS1022I, which none of the others have.
At this price range you can't have everything, but it's a good compromise.
P.S. For long buffer length on digital stuff you can't beat a <$10 8 bit Saleae clone and Sigrok Pulseview s/w (not real buffer - it's all in the PC).
SIBtronics:
Have now just got the scope, it is good, doesnt feel cheap and doesnt work like a cheap scope. compared to the handyscope hs3s we have at college it behaves the same essentially and these are much more expensive (though also have 50mhz bandwidth, 16bit mode and awg). having also used a tds 220, i certainly prefer this to it, the tds 220/210s screen is awful, of on the owon the frequency and sampling rate is more limited but for me thats totally fine. I use florentebrs software, it works very nicely and i cant really complain about it, the lack of virtual dials is a plus for me tbh. i cant really see the complaints about the software, of course florentebr added some stuff, but the ui itself which is the same as the og one as far as i know is good. i havent tried out the recording capability in depth yet, it works with a single usb A, the dual usb a thing really is a thing of the past. did some lissajous figures of course, works aswell, although they do look nicer on an analog scope. the fft works too, not that i have too much use for it. the trigger is rock solid. edit: just checked the handyscopes specs and besides analog bandwidth, and wavegen these are the same spec wise.
John Celo:
I've also received the scope. Tested and it works well with florent software.
The only thing you have to do in addition to following instructions on florent github (install java JRE) is to get 'Zadig' to install USB-drivers for the device.
First impressions - It will definitely be useful (especially as educational tool), but I would have been pretty disappointed if I paid the full price for it (which is in 70-80eur range).
Right now I'm just hooking it up to everything and measuring things, such as looking at various LDOs and switching mode regulators on various MCUs I have.
5k record depth is just not good at all. Can't really zoom out or zoom in any captured signal to see more.
For full price it's really old & outdated and I would not recommend it. Actually any of the oscilloscopes with record length below atleast 1M is out of the question.
Oscilloscopes is just one of those things that are not possible to cheap out on.
I'll write a more indepth review some week(s) or month(s) later after I've had more time with it.
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