You Need This Instrument Right Now | Voltlog 376

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High quality PCB Services pcbway.com In this video we are taking a look at the UNI-T UTG962 arbitrary waveform generator and I must say I’m surprised by the very good build quality and the selection of components that went into this test instrument. There are of-course limitations given the price of the unit but with those in mind I don’t think there is anything else on the market that does better so all I can say is that you need to order yourself one of these using the link below.
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#VoltLog #UTG962 #Review

Опубликовано:

29 сен 2024

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Комментарии : 107

@ledhunters 3 года назад

This "product", "instrument", "device" is actually function waveform generator...

@ElmerFuddGun 3 года назад

Yep, but putting that in the title would eliminate the "click bait" that is there now. I wonder if the "seller" required it or even wrote the title? Even though the title wasn't very honest it was an OK review.

@VioletGiraffe 2 года назад

It took me until the 11th minute of the video to realize this is NOT an oscilloscope but a waveform generator.

@planker 3 года назад

I have to save up for a Nano to finish my project. You did not have to say you got it for free.

@planker 2 года назад

@@johncoops6897 yeah maybe.

@hartonotandjoeng2314 3 года назад

Another clickbait ish title

@tcarney57 3 года назад

Good review, but I don't need this instrument right now, and the click bait title is beneath you.

@AndreasA.S. 3 года назад

recommend you change your vid title to state what you are talking about or what instrument i need , never mentioned.

@MarksGoneWicked 3 года назад

So far, I'm liking UNI-T products. I have a bench top power supply and a DMM. Wished I had a little foresight when I got my DMM. Should have gotten the higher RMS, it was only a few bucks more, but prices seem to have doubled since then.

@paulhamacher773 3 года назад

What's that chinese obsession with serif fonts?? I hate that :D

@msana4420 3 года назад

Wow, really taking a bite off the click-bait titles. I know this "you need .....xxxx.... right now" from networkchuck. Please don't go down that road. I always enjoyed your videos.

@Manticore1960 Год назад

The microcontroller is a GD32F207ZCT6

@RomanKuechler 3 года назад

I cannot speak in generally, but so far, I avoid UNI-T products. My experiances with their multimeters are simply to bad (and with that I agree with Dave Jones ...)

@simonbaxter8001 3 года назад

I have a Farnell (Multicomp Pro) branded 4-20mA simulator/calibrator which is a UNI-T device ... and it's full of software bugs that make it totally unusable in a live system environment (loop goes open circuit when manually adjusting the current through a number of points!) and neither Farnell or UNI-T want to know about it. I will be avoiding UNI-T based products in the future. V. Poor.

@cognetic 3 года назад

As an average hobbyist, I don't know what I'd do with it. But the video title makes me feel like I need one! 😜

@aleks138 3 года назад

Same and at $109 on aliexpress I had to have it

@voltlog 3 года назад

It's not a tool that you would use everyday but when you need it, you need it. It can be especially useful for educational purposes.

@gamerpaddy 3 года назад

i stick to the fy6xxx models they are more capable and you get two of them for the same price which you can sync up for 4 channel.

@voltlog 3 года назад

I've been watching those for a long time and the build quality is terrible 😒 I'm guessing they get the job done but this UNI-T feels so much nicer.

@gamerpaddy 3 года назад

@@voltlog because 99% of the functionality lies in the design and feel of the plastic case, not whats inside..

@raymonddompfrank1789 3 года назад

@@gamerpaddy Did you notice the terrible and dangerous "safety earth" connections on those and make-it-worse comments on YT?

@gamerpaddy 3 года назад

no, but did a teardown of a 6800 on my channel and from what i saw it was good enough. the 6700 models didnt have earthing at all, that was sketchy as fuck but from the 6800 and up i got no complains. except a missing sync output and no shielding.

@raymonddompfrank1789 3 года назад

@@gamerpaddy Not so much the lack of earthing but crossing the primary-to-secondary isolation by what was called a "Y" capacitor (but of course wasn't really that) was the problem. That cap *coupled* mains onto the BNC's. The solution was to remove the cap and the BNC's no longer were "hot".

@BaronVonBiffo 3 года назад

I followed your link to check it out and discovered that they've sold out. Banggood got good value by sending you the review model. A down side for me is the absence of a plug adapter for Ireland.

@voltlog 3 года назад

It's just a 5V 2A power adapter so it's inconvenient for not including all the adapters but you could easily replace this with any modern phone charger.

@robertbox5399 3 года назад

@@voltlog Will UNI-T pay for that for you?

@isettech 3 года назад

LOL, Picked up one a few months ago. Thought one channel broke after about a month, but found no hardware faults when comparing channels. A Software reset fixed the issue. Fault was very low output on one channel. Not had any issues since. Funny the Modulation button on mine is marked MODE. Wonder if they will provide a corrected button for that. For the money, a very good deal. Spent the extra and got the 60 MHZ model.

@voltlog 3 года назад

what versions is yours running?

@isettech 3 года назад

@@voltlog Software 1.07. Hardware 1.01. FPGA 1.07.

@robjordan63 3 года назад

My unit purchased Dec 2020 has Software version 1.08, Hardware 1.01, FPGA 1.07.

@voltlog 3 года назад

So it seems like they bumped the sw version but there is no download available that would allow the user to upgrade.

@robjordan63 3 года назад

@@voltlog So it seems. I spent some time searching for updated firmware without success. But there are some vague words in the manual about how firmware can be updated by USB connection with PC.

@Rob2 3 года назад

Seeing the case I thought maybe they had a low-end 2-channel oscilloscope in the same case and for about the same price, but it does not seem to be true. There are some scopes costing 3 times as much, but they are in a different case. In fact it seems that each and every UNI-T product is in its own different design of case... weird!

@Ojref1 3 года назад

I bought one a few months back. Incredible value for cost.

@voltlog 3 года назад

It really is!

@raymonddompfrank1789 3 года назад

I bought mine in February this year and am really happy with it. Rise and fall times are not particularly short at 15ns minimum but adequate. Sine wave amplitude remains steady within a few percent across the whole frequency range. Just to emphasize: I'm just a very happy customer; no affiliation with the manufacturer or any vendor (look at my other posts here).

@raymonddompfrank1789 3 года назад

In pulse mode, you have a square wave generator with adjustable duty cycle and adjustable rise and fall times if the frequency is low enough. Usable to at least 10 MHz.

@dreamcat4 3 года назад

hello sorry to be a nuisance. but i am trying to evaluate the benefits / value of getting this product as a seperate signal gen. vs the ones which come with certain oscilloscopes. 1) Siglent SDS1104X-E and 2) rigol msu5072 / 'mso5000 series'. the thing is its not clear to me yet how they can compare to each other in reality. and for which specific type(s) of common practical lab situations. for example the siglent scope says it needs external hardware to work. well ok... but then how does that product compare? at least for the rigol mso5000, we can see clearly its just a software option, and the sampling rate specs are basically the same (25mhz / 200msps). however how many channels does the rigol give? only 1 channel or up to 4 channels? and does it matter, to need 2 channels of signal generator in lab situation? ... well can we have an example please, for when this will occur? i am just finding it hard, to weigh each option against the others. since being on such a tight budget it matters to me. because the cost of the signal generator is in fact shared with the same budget for getting the oscilloscope. IDK what to do now but i believe this situation and predicament is similar for many other people? *shrug* please let me know if anybody else here is familiar for this matters. or can briefly give other helpful example to help to paint the picture. many thanks

@voltlog 3 года назад

I would totally get a scope with built-in arb gen if it was within my budget. I would assume bench space is limited for most people so it would be an advantage to have a 2 in 1.

@jaro6985 3 года назад

The rigol is a 2 channel output, you can see by looking at the front of the instrument. G1 G2. The first limitation you might run into is voltage peak to peak, I think its +/-2.5V or so. Its rare for most hobbyist to use more than 1 channel generally, but, any decent signal gen will come with 2 anyway. Although the second channel can be useful for say, precision voltage generator, just set it to DC. You can google these products and read the spec sheets. Its quite clearly laid out.

@paulhamacher773 3 года назад

Best part: 3:43

@voltlog 3 года назад

probably worst thing about this instrument, it was incredibly difficult to peal that off and it left a residue behind which required cleaning....

@lorizneroll402 3 года назад

FYI - Gigadevice is pretty much a 1:1 clone from an STM32. At least for the majority of the main STM lineup.

@meanxmeanx1763 3 года назад

and they have a better availability also at the moment

@eone199 3 года назад

illegal clone.. ST never licenses the design to gigadevice

@dreamcat4 3 года назад

@@eone199 aparently they are legal somehow... which was difficult for me to believe without the proper explanations. for that you need to read on the eevblog from those who understood properly the details

@meanxmeanx1763 3 года назад

@@eone199 Absolutely not. they are not clones, they are compatible chips, redone from scratch. and it some cases better than their STM counterparts. The internal design is completely different. As a proof, their VF103 is using a riscV core instead of an Arm core, same peripherals as the GD32F103, which would be impossible if they were just copies. Clearly a whiteroom compatible implemention, 100% legal.

@eone199 3 года назад

@@dreamcat4 do you have the link about that?

@jamesgrant5945 9 месяцев назад

Does this equipment output a tone on FM please

@robertbox5399 3 года назад

I think £53 would be a decent UK price, not £103. That's pushing it.

@askanyful Год назад

Here in India we are getting it for £203

@antibrevity 3 года назад

I can't find this exact FPGA, but the XC6SLX9 FTG256C is a $30 part.

@voltlog 3 года назад

They would have probably gotten it cheaper but still, they've used good quality parts inside this unit.

@JeremyCook Год назад

Nice video. Do you have a link to the GitHub project or know what's going on with it? Thanks!

@robertbox5399 3 года назад

Any company that spends money grinding away part numbers rather than on quality can get lost. More likely they're ashamed of the brand they use. Remember this UNI-T please.

@1pcfred 3 года назад

It does seem like a waste of time to be taking the numbers off parts. China vs. China.

@robbieaussievic 3 года назад

.... Well done Mate, Does changing the output to 50Ω stabilise the waveform ? I think it did on mine ?

@raymonddompfrank1789 3 года назад

This instrument does not change its output impedance. It just adjusts its amplitude indication, depending on what you say it's loaded with.

@robbieaussievic 3 года назад

@@raymonddompfrank1789 .... G' Day Mate, I can alter the output of my UTG962E to, 50Ω, 75Ω, or High Impedance (Default). I love this little unit, The button at the top should have been labeled 'Modu' (not 'mode') and the 60Mhz only applies to Sine. I still think it's cool Man !

@raymonddompfrank1789 3 года назад

@@robbieaussievic I meant to say that by changing the output "Load" setting, nothing changes in the output impedance or voltage. You don't alter the output to 50Ω, 75Ω, or High Impedance. Only the amplitude *indication* on the LCD is changed, because the instrument assumes that you apply a load corresponding to the Load setting. Try it out.

@robbieaussievic 3 года назад

@@raymonddompfrank1789 .... Thanks Mate, why does the waveform stabilize when I alter the channels load setting from 'High Impedance' to 50Ω ? eg. into a SD23252X-E

@raymonddompfrank1789 3 года назад

@@robbieaussievic Why? It's just a designer's choice for simplicity. A fixed output impedance is much easier to implement than a variable one. The different loads that you connect cause the output voltage to drop and the instrument knows how much because it "knows" its own output impedance (OI). If the OI is say 50 Ohm fixed and you set it to generate 1V, on a high impedance load you will see that 1V whereas on a 50 Ohm load, the voltage will halve. The voltage indication on the display will be half if you set the "Load" to 50 Ohm. If you leave it at High Impedance, it'll show twice the actual voltage on the display.

@Rob2 3 года назад

How many datapoints can you load for an "arbitrary" waveform?

@raymonddompfrank1789 3 года назад

In my unit, the reference clock has a ca. 5 ns jitter with a repetition rate of below 10 Hz. Easily seen when observing a 20 - 60 MHz signal from this generator against a better generator, set at the same frequency, on two channels of an oscilloscope.

@raymonddompfrank1789 2 года назад

@@johncoops6897 AFAIK the noise generated by these low cost power supplies is mostly at least a few kHz and up. I only observed irregular jitter (i.e. frequency/phase jumps) of about 5ns, at a rate below 10Hz, no significant amplitude noise. Besides, I did not use the included PS in my tests.

@marcinp.8108 3 года назад

Phase noise of this generator is quite high. Otherwise nice tool.

@raymonddompfrank1789 3 года назад

Yes, and (in my unit) there's a 5ns jitter with a repetition rate at about 10 Hz.

@ElmerFuddGun 3 года назад

What's with the front label's mixed regular and italic font? Look at _"Function/Arbitrary Waveform Generator"._ All italic except "rbitrary W" right in the middle! Looks very weird! Pause at around 6:57 or 14:10.

@MetawolfTV 3 года назад

PSG9060 seems to be in the same price range and specs. How does the 2 compares? And which is better?

@voltlog 3 года назад

on paper seems to have slightly better specs, I have no idea how they compare but I would expect the UNI-T to be higher quality.

@stevetobias4890 3 года назад

Silicone double sided tape would be good on the bottom to make the buttons easier to push. Alternatively a remote control would be a handy addition to the unit.

@raymonddompfrank1789 3 года назад

The case has pretty nice non-slip feet. It just tilts backwards when you press a button because it's quite undeep.

@MCsCreations 3 года назад

Pretty interesting instrument indeed, dude! 😃 Great review! Stay safe there with your family! 🖖😊

@voltlog 3 года назад

Thanks, you too!

@alejandroperez5368 2 года назад

Stay safe from what?

3 года назад

Great, I already have one. Check Owon hds242s or its 'bigger' brother, please.

@voltlog 3 года назад

I was actually looking at that the other day.

3 года назад

@@voltlog Thanks, I'll check it out.

@lashlarue59 2 года назад

Is a arbitrary waveform generator the same thing as a function generator?

@voltlog 2 года назад

These days I guess they are all arbitrary waveform generators but as the name implies a AWG should be able to generate arbitrary waveforms whereas a function gen should only be able to put out the periodic standard functions it contains.

@lashlarue59 2 года назад

@@voltlog The reason I asked the question was that my function generator can also custom waveforms that i create as well as the one's it comes with. I was hoping there was something special about the arbitrary one's. So I guess they are pretty much the same.

@voltlog 2 года назад

@@lashlarue59 These days it's quite likely that they are all AWG just because they all the "arbitrary waveform" capability.

@fassesweden 3 года назад

Just bought one with your link!

@voltlog 3 года назад

Thank you for your support!

@EgonSorensen 3 года назад

I need it... No, I'd rather keep US$175.99 in my pocket

@EgonSorensen 3 года назад

@@johncoops6897 It resets settings on power-on, so no stored presets. Worst part: It only goes up to 7-10 MHz before distorting a square wave - and on top it has a lot of jitter. I'd bang-my-head-good if I didn't get it for free, but I didn't - so I save my head and my money ;ø) Oh, there's a sale now - I wonder why :ø)

@vytautasslenderis2702 2 года назад

Terrible. Lightweight, will be bumping around in the lab. No front BNC connectors!!! That is the stopper.

@ovalwingnut 3 года назад

My Bad. Thought we were looking @ a SCOPE, initially. I though the controls looked a little weird.. Yah Yah, duh... I'm not the sharpest knife in the drawer. But I enjoyed the video either way. Thanks so much!! Cheers from the So.Ca. USA, 3rd House On the Left.. :O)