Hi Kerry, 1st time viewer and wanted to thank you for your time. I picked up one of these after seeing a few other quick reviews and really appreciate your going more indepth with the functions. I'm very new to this and trying to understand how to use it with vintage audio gear troubleshooting and restoration. If you have recommendations along those lines, your reply will be greatly valued. Best Regards, Jack

DC output issue - If you had put a 50 Ohm load across your multimeter inputs, the DC voltage would have been correct. This is true in every output signal mode... if you set your o-scope to Hi-Z input, and the sig gen to 50 Ohm load, you will get double the output voltage that the sig gen says it's doing.

@muratirulmancilik

Жыл бұрын

How can we do it

Thank you for this nice introduction to the UTG962E. This is very useful information, I just ordered one and appreciate knowing a bit more about it. Thanks!

@KerryWongBlog

2 жыл бұрын

You are welcome! Glad it was helpful!

Perfect usefull review. You clearly describe the positive and negative points. Very good.

For those interested, w2aew has a good video (#137) on why the ouput level is "wrong" at 50 ohms.

Thank you for your comprehensive presentation. I am going to purchase one function generator for my (just) retired hobby electronics lab and I was wondering about that model. I will try to find it locally. Good job!

@osvaldocristo

Жыл бұрын

I purchased the generator and already received it. Good price for its performance. Thanks again to you as you saved me a lot of research and time.

Outstanding review!

Was the DC output offset off because it was expecting a 50 ohm load. It had a 50 ohm output impedance and with a 50 ohm termination the voltage divider would be 1/2.

@TestEquipmentAnonymous

3 жыл бұрын

Correct. The generator assumes that its output is connected to an input that has a matching impedance and displays the amplitude based on that assumption.

Good review. 👍 Have you checked the voltage to ground hot & neutral from a BNC cable coming off the 962? I find anywhere from 50VAC to 120VAC depending on the power adapter I use with mine. Typical? It appears I had a floating ground on the BNC for output 1 that caused some of the high measurements. I had to deform the BNC connector shell on the 962 to get it to fit tighter. Now the voltages are ~25vac but still higher than I'd expect. I did not check current.

Very Detailed Video ! Thanks

Yes I just purchased one coming soon great video Kerry

Really cool inexpensive unit, I'll pick one up - thanks for the overview!

@KerryWongBlog

3 жыл бұрын

You are welcome!

@unlokia

2 жыл бұрын

Why does everyone “pick one up”? One says “I’ll buy one”.

Excellent review, thanks!

@KerryWongBlog

2 жыл бұрын

You are welcome!

thank you for your knowledge :D

Got this unit for my cassette deck tuning job. I avoided going with the traditional lab-like dual channel FG as it looked a bit dated and limited for the price and this was cheaper. Since I already knew the quality standards of the brand I opted to go for it... I am very pleased. It's precise and pretty quick... not the most intuitive interface but you get familiar with it after some time. One downside that I am afraid is by design you can't set up both channels at the same time. You can synch the output of the channels, time shift the output but each time I have to change the frequency length I have to manually enter the values for each channel, each time I want to turn on or off a channel I must do it individually. Not overly sure if there's a way to act on both but it might well be a marketing strategy to remind that you could bought the next model up the range.

Very useful information - thank you. I have one arriving soon and am wondering if anyone has used a right-angle BNC adapter so the cable isn’t sticking out so far on the side of the unit. I couldn’t find a test cable with a right-angle BNC, so I’m planning to use an adapter but I’m a little worried about signal degradation. Any thoughts?

@XtianApi

10 ай бұрын

Bnc with one good quality adapter should still perform extremely well.

Thanks for sharing. 😉👌🏼

@KerryWongBlog

3 жыл бұрын

You are welcome!

the scale of this thing is an optical illusion

@pauljohnson4590

2 жыл бұрын

Only if you ignore the size of a BNC - that gives it something you can scale to.

What is 962E vs non-E version???

Thanks for the review. Did you look at the noise and distortion of the output at sub-volt levels?

@KerryWongBlog

3 жыл бұрын

Didn't check that specifically but based on what I saw on the SA I'd think it meets the spec.

@mfr58

3 жыл бұрын

@@KerryWongBlog Many thanks.

I have the 962 and the UNI-T UTD 2152 scope. I need to transfer a stored signal on the scope to the 962. As per Uni-T, the file formats are incompatible. Do you know of any way I can reformat the csv file on the 2152 to be accepted by the 962? The signal in question is the spark generated by an electronic ignition. I can store the primary signal of the coil and by inductive coupling the secondary signal. Since this is a complex waveform, I am attempting to design an interface circuit to provide a +12 volt pulse to a tach. This ignition is connected as a positive ground 6-volt system. I have a voltage inverter and boost to take the -6 volts and convert it to +12 so that supply is available for the interface. The only format the 962 appears to accept is a .bsv. It will output a .png file. Any help would be appreciated.

Still waiting for the delivery. This is really cheap and nice. :D

I enjoy your channel. I have the UTG962 as well and I believe I have found a problem with it's firmware. Wonder if you can confirm. When generating a signal of 14 MHz sinewave, when I turn on AM modulation with 1 KHz sinewave the output drops by 6 dB. It does NOT seem to drop if I use other modulation like FM, etc. This 6 dB drop is observed even if the AM depth of modulation is set to 0%. Can you confirm?? do you believe this is a firmware issue?? Thanks!

Excellent overview and demo. Does anyone know if it is possible to output two sine waves to one channel? Is that just a matter of modulating one freq with a second freq? thanks

Thanks for posting. I wonder if its worth the money given that wonky optical display.

Great review, thanks

The markings on my microcontroller were not rubbed off. It's a GD32F207 ZCT6

do you recommend getting this one or spend more on a siglent/rigol?

@phatman808

3 жыл бұрын

Similarly spec'd Rigol waveform generators cost about twice to 3x one of these units. If you're curious just compare the spec sheets on both. If you don't have a function generator this UNI-T will probably be fine depending on your application to get you started. If you need finer waveform accuracy, better interface/software, higher frequencies, more features etc, then you'll need to look at much higher end Rigol units or other well known manufacturers with a corresponding increase in price. So as always with this stuff, "it depends", but this is great as a starting point for function generators.

Спасибо

Very nice review 👍 The 50 Ohm / HiZ output modes is just the displayed amplitude level. I think that the output is always 50 Ohm actually. It should better be called Load Impedance instead.

I see on the display it shows 0 mv. Can you tell this to generate 50 micro volts on a given frequency? Such as 14.125 mhz? Barry

@longpham-sj5sv

2 жыл бұрын

you meant mili hertz right?

I am a bit confused: Is the output impedance of each channel adjustable between 1Ω to 999Ω, plus high-Z (manual p. 9), or is it only 50 Ohms and high-Z? Looks to be a good instrument, thank you.

@gerardoromano3436

5 ай бұрын

hI, You can select 50 ohm or high impedance (typical 1 meg ohm), you don´t need values in between. 50 ohms is the standard and high impedance is intended for osciloscopes or other devices that yo cannot terminate with 50 ohms. don´t worry about that, just with those two values you´re just fine.

You made my Day ! Sad of looking "Funktion-Generator Tests" performed with an Oszilloskope 😅. With SA you are able to see the Harmonics !!!! Good job ......

@tomperli4513

4 ай бұрын

Addendum : always be sure you are in the linear range of your SA mixer ,not having "Alias"harmonics from your SA. But I am sure you know the effect and you re aware of it ( intermodulation free range ). Greets from Germany

Can you put out a trigger signal for the sweep on the second channel of the awg?

@KerryWongBlog

3 жыл бұрын

Yes, the trigger signal can be outputted via either channel 1 or channel 2.

@ad2181

3 жыл бұрын

The minimum for any Arbitrary generator is a Trigger, Channel1, Channel2. Anything less is worthless.

Hi, I didn't find the maximum output current for output DC. Do you know it ??

@rokiedecentra9656

2 жыл бұрын

output impedace is 50ohm so you can calculate it, output voltage is 20Vp-p with no load so it is likely 141mA max taking the Vrms of 20 to be 7.07Vrms

cool !!!

Hi thank you very much for your very valuable and helpful tutorial I see that when you connect the generator to the SA you use a dc blocker ? is this mandatory ? would a cap on the + side be enough ? which value ? will the generator performance be better at audio frequencies (i.e. from 20 to 20kHz)? i am seriously thinking to buy one if this is the best unit for Q/P ratio thanks a lot gino

@KerryWongBlog

Ай бұрын

Most SAs cannot tolerate any DC offset so a DC blocker is recommended. Since SAs are mainly used for higher frequencies, a capacitor in the range of 100-1000pF should be sufficient.

@gino3286

Ай бұрын

@@KerryWongBlog Hi, thank you very much for your very kind and valuable reply My main interest would be to find a spectrum analyzer and signal generator solution for use in audio so from 20 to 20kHz to check some preamplifiers for THD and noise my main interest Devices that output 2-3Vrms at max I therefore imagine that the capacitor will have to be larger Since I'm an amateur I wanted to start with a sound card plus signal generator to keep the cost down. A quality entry level audio analyzer the qa403 already costs around 600USD If I am passionate about the activity then I could invest more For now I would like to find a signal generator that is not too expensive but is not a toy let's say

FYI, you can just list "chapter" times, and KZread will auto-create links, in both description & comments... E.g., 9:33 Modulation

@KerryWongBlog

3 жыл бұрын

Didn't know that. will have to give it a try.... Thanks!

@oriole8789

3 жыл бұрын

@@KerryWongBlog yep, but you have to start with 0:00 as the first chapter, exactly like this in order for KZread to parse the list

@KerryWongBlog

3 жыл бұрын

@@oriole8789 Good to know! Thanks!

Thanks I thin this is a great gen for the price;)

@KerryWongBlog

3 жыл бұрын

I think so as well.

UTG900 MainBoard Edition: v1.02 20190426 UTG900 Key&Display Edition: v1.03 20150428 From the lower marking we can see that this series has been around since at least 2015 and that the last revision of the main board was in 2019. How long has this series been known to the US market? It;'s new to me. I wonder if the units without the 'E' are an older version since UNI-T doesn't arbitrarily put letters in the model numbers of their multimeters without them designating something.

Can do this generate aplitude modulated waves ??

@KerryWongBlog

2 жыл бұрын

Yes, I demonstrated that in the video.

At least the thing uses real DACs, as opposed to the junky non-monotonic R-2R DACs used in the simpler unit I got a few years ago!

HI, i just receive the UT962E but it is in chinese i don't know how to change the language?

@KerryWongBlog

3 жыл бұрын

hit "utility" and the last menu item (the fourth) is "system". Then click on the third option "language" you should then see your language choices.

@skilledhiko329

3 жыл бұрын

@@KerryWongBlog THANKS A LOT KERRY

The multimeter is high impedance when measuring in volts, and the generator is seto to 50 ohm, is normal plus volt. You must set the generator output to highZ

How can i install the software on raspberry pi os, i think the software is only for windows !

@gerardoromano3436

5 ай бұрын

Windows.

Can you get a strange attractor Lissajous with 2 complex waveforms?

@KerryWongBlog

3 жыл бұрын

You could generate a "attractor" like figure by designing your waveforms (just search oscilloscope art). However, it won't be a true strange attractor as the info stored in X/Y waveform is finite and periodic.

can both channels be used both at the same time using different frequencies?

@KerryWongBlog

3 жыл бұрын

Yes. One thing to note is that both channels are ground referenced (meaning they are not isolated from each other).

I always wonder, why would all these companies sand off the chip/s? Oh and thanks for the review!

looks identicle to my digitech qc1938 scope mine more expensive and has some features you dont have

Cannot figure out how to turn off modulation.

@KerryWongBlog

2 жыл бұрын

Just press "Mode" again.

@DavidFederLimitlessGuitar

2 жыл бұрын

@@KerryWongBlog Ha Thanks! I Figured it out right after I sent this.

Are you at your work place doing this video?

@KerryWongBlog

3 жыл бұрын

No, it was in my workshop.

Why would a regular Joe with tons of tools need this? Any cool things I can do with this around the house or garage? How 'bout an oscilloscope? Thank you.

@johncoops6897

2 жыл бұрын

If you have to ask the question, you don't need either tool.

Nice generator BUT it would be much better if it has noise random periodic function and first of all a BATTERY driven option, 1 hour of operation at least.

@rokiedecentra9656

2 жыл бұрын

a power bank outputs the 5v it needs so I dont see why you cant do that.... better to use a power bank than a battery that dies inside the unit

@RexxSchneider

2 жыл бұрын

@@rokiedecentra9656 Half the reason for wanting battery operation would be to get rid of the noise from the switch-mode psu. If you use a power bank, you're just substituting another switch-mode psu that lifts the 3.7V batteries to give 5V output. I'm going to try a 12V battery with a linear regulator like 7805. My sig gen draws around 0.5A, so a smallish sized heatsink will do the job. Perhaps a 2S li-po battery pack with a linear regulator might provide a long-term solution.

@rokiedecentra9656

2 жыл бұрын

@@RexxSchneider it will do switching conversion internally to get the high voltage rails so would it make that much of a difference

@RexxSchneider

2 жыл бұрын

@@rokiedecentra9656 Hard to tell without trying it. It may improve it, but it certainly can't make it any worse. I'm not terribly impressed with the noise on low amplitude signals generated. If all you want is to have a floating ground on your signal generator then a power bank is fine - I've used one for that without any problems.

Unfortunately this is 260 now

The software is Windows only. :(

@Sylvan_dB

3 жыл бұрын

:( I wonder if uni-t will release interface specifications

@ozzymandius666

3 жыл бұрын

What is needed is a some open-source file specs. for waveforms. That way, make the waveform on any platform, save it to a file, and load the file into the AWG. That way, just use the AWG as a USB storage device.

@Not-Only-Reaper-Tutorials

2 жыл бұрын

amd it doesn’t even work. Too old, never updated

@rokiedecentra9656

2 жыл бұрын

@@ozzymandius666 i think some use csv files to generate arb waveforms

Is there a label or any kind of EXTERNAL markings which might indicate a date of manufacture, a serial number which would imply the same, and/or regulatory certification markings? On its UNI-T multimeters, letters after the model number signify some significant difference and an "E" doesn't mean "English model." I've seen claims from sellers selling UTG932/962 without the "E" suffix that there is no difference and that the "E" stands for "English model." That makes no sense to me since the language can be easily changed via the setup menu and, as I have said, a letter after the model number means something significant with UNI-T multimeters. From experience, I trust China-based sellers as far as I can throw the nation of China which is why I'm asking this along with the discovery from your dissection of your "E" model that, based upon the keyboard and display PCB, this item has been around since at least 2015, possibly only in China.

I was considering buying this until you revealed that arbitrary waveforms created with the editor cannot be stored on the device, but must be downloaded from a pc every time. I mean, wtf? I have an old feeltech fy6600, and you can readily store your waveforms on the machine itself (though the PC software sucks, but that is a whole other story). I thought the Uni-T would be an upgrade from the Feeltech, which I have had for about six years. but after seeing that ridiculous limitation, no thank you. I will hang on to my trusty old Feeltech for now!

Note that your multimeter is not perfect either, it is rated at 0.5% accuracy.

Not any more, they now cost more than low end digital oscilloscopes!!!

Craaaaaap! with a fancy layout but just given shit measures

Thank you to have deleted 2 times my comment where I told that unfortunately to me it doesn't work the driver. Good luck

@KerryWongBlog

2 жыл бұрын

I don't delete comments. Comments do not meet KZread community guidelines are automatically withheld.

@Not-Only-Reaper-Tutorials

2 жыл бұрын

@@KerryWongBlog My comment was not violating any KZread guideline. I listed in bullet points what doesn’t go with the drivers, what I did to try to make them work and didn’t worked at all. I also stated I contacted the manufacturer several times and I have not received any answer. Hence: not any violation. They where visible for 1 minute about, and then removed

@KerryWongBlog

2 жыл бұрын

@@Not-Only-Reaper-Tutorials Oh, sorry to hear that. Wondering if there is a bug in KZread 's commenting system. But I don't manually remove comments.

@Not-Only-Reaper-Tutorials

2 жыл бұрын

@@KerryWongBlog I have not clue. Certainly my message is not held, since you didn't find it. My channel all the comments are held, and I regularly see them and approve all. Just my comment was removed. Not one but 2 times. The first time I thought it was my mistake. Then I republished it. It was there for a couple of minutes, then removed. That's definitely not nice action.

@KerryWongBlog

2 жыл бұрын

@@Not-Only-Reaper-Tutorials Thanks for letting me know. It's odd indeed. I just checked the withheld comment section and didn't see yours in there either...

Спасибо