I am happy that I found your channel! Great job with the intro, and the following demos. My electronics class was back in 70-72, but I've always kept a minor interest in the subject. I am now waiting for my Uni-T UT962 to arrive. It's Super Bowel Sunday, BUT I'll be playing with the UT and my 4ch. Pico automotive scope. As to your fondness for the EKG waveform, the Uni-T has the best depiction; I speak from >30yrs of experience in emergency services as a Lt. FF/PM, and ED-RN (I know how to read them, and also taught for aprox. 20yrs) trust me, I'm from the Gov. : -) Seriously, 20min into your video I'd subscribed, and I think that you did a great job on a subject of broad SCOPE. Thank you, as I sit here waiting for my Uni-T AWG.
LOL Thank you so much for this great feedback!! I scrolled down looking for subs to respond to - as it is getting difficult to keep up with all the comments. And - I was happy to read this comment;) Please ask anything you like and/or suggest videos;) Looking forward to you John;)
Much appreciate spending the time conducting the comparison. I have the Kooletron and find it's a solid func gen but wish the display was larger and had more counter digits.
@43:05 for the Koolertron, you see this weird bump. Since we are talking MHz domain, might these be reflections from an impedance mismatch? If it is, is the source impedance of the koolertron mismatched?
A lot of people talk about the features and prices of function generators but no one talks practically about WHY? Why do you need a function generator? What does it do for you besides drawing those graphs on the oscilloscope?
See a big inductor atop the stack of gear, vertically loaded antenna coil? Enjoyed the review, expecting delivery of a Uni-T next week. Thumbs up here.
20vPP is in HiZ. They are all probably limited to 10VPP in 50 ohm termination mode. The Siglents typically limit their PP output to 10VPP (50 ohms) to 20MHz and then (5vPP after 20MHz). That is a very important consideration.
Very good point! I think the main difference is the source impedance is 50 ohms, so if the output is also 50 ohms then the voltage is divided in half. If the output impedance is Hi-Z then the output sees the full voltage and it is not divided in half. Thanks for this!
@@KissAnalog I think the Siglent you have cuts its output in half after 10MHz or 15MHz? I use the SDG2xxxx Series and the SDG5162 (after software upgrade). The SDG200x Series is rock solid with VisaCom control (GPIB commands but through the USB Port), but the SDG5162 is older and somewhat flaky under software control. I would never recommend the the Siglent SDG5000 series, but the other ones are fantastic. Look at an SDG2000XE. It runs circles around a $5000 Agilent 33250A. It is two channel and you can easily combine (short) both channels together to create unique signals needed in my industry. You can also use a BNC-TEE to short the two channels of the SDG5162 together to create those same signals. It is solid except under software control.
I would have liked to have seen the software for each of them, or know if they even offer a package with each unit. One of the main reasons I use an arb it because I have some nonstandard waveform I need to create. Sometime I will use other equipment to capture a waveform and will need to play it back with the arb. If the companies offer some sort if library were you can write custom software to control them, even better. I see a part 2 in your future!
I think you are right Joe;) It was just getting so long... I also would like to look under the hood. Thanks for the suggestion! BTW, I can’t stop watching your videos;)
As a starving student, I was searching high and low for a thorough review of this gen, glad I finally found this one! Have you thought about incorporating teardowns and offering your two cents on the layout and component selection in future reviews?
Thank you! Yes, I was going to do a tear down but I was afraid of the length of the video. I thought I might use if for a bit and then do a follow up and show a tear down comparison to the others that I have. That's great feedback - I appreciate you!
I do really like the touch features of the Micsig. We had a new R&S, Tek, and Keysight at the lab I worked at and all had touch screens. The Tek was the one I liked least and the Keysight was the best. The Keysight just seemed like a normal scope with cool features - like the Micsig, but the others were loaded with menus that took several touches to get to where you wanted to go - that other scopes had handy right on the screen.
Merry Chritmas! I have a question: how pure is the sine out of that Uni-T generator, in audio band? I ask you because I was trying to measure the THD of an amplifier using my Siglent DSO 1204 X-E in FFT mode, and my cheap "Feeltech" arb waveform generator, and I also made some measurements with a PC soundcard using SpectraLAB software, but it looks to me that the output of the signal generator is already affected by some -50 or -60 dB 2nd harmonic, as well as some similar amplitude of 3rd harmonic, making really hard to measure the THD of the amp alone. How well does the UniT behaves in this respect?
Thanks - and great question! I found similar results using the Siglent and Uni-T. I suppose one thing you can do is use the input spectrum to compare the output spectrum. If you have a harmonic on the input (or set of harmonics), then you can see what their amplitude and freq is on the output to see if they are at the same freq and same gain between peaks. Is the noise floor at the same level or is it amplified also? I think to get a clean input you almost need a sinewave generator. But, I do think my bluetooth boards gave a cleaner signal. I should do that video comparing a cheep bluetooth preamp vs the ARB generators;)
@@KissAnalog I believe that it would be very interesting, and you might also add other generators that you have, and make a comparison! Only recently I realized how hard it is to make serious measurements of small signals, especially with cheap "hobbyist grade" equipment. Thanks for your suggestion, and I'm going to watch many others of your videos in this subject, that I just noticed I have missed ;-)
Decent review for sure, thanks. Does the UNI-T power up with the last used settings? I use a single channel Arb on my scope, but the main problem with it is (unlike the scope channel settings) it resets to default values when the scope is powered off and on. So this could be an affordable alternative if your answer is YES :-)
Thank you! That is a great question, and I forgot to discuss this in the review. Yes it does, or at least it keeps the settings for both channels, but it does come up with them in the off state. Which I think this is great, so that it gives me the chance to say - yes now put out that signal;) usa.banggood.com/custlink/vGmY5LajKj
Hi Eddy, 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!
Thanks for pointing this out. I haven't noticed that but I'll check it out. It could be that with Amplitude Modulation that it needs some amplitude to work with so it drops the signal. What signal level did you have on it when it did this? If you drop your signal down - does it still do it?
@@KissAnalog I was generating -33 dBm and then into a 40 dB attenuator to simulate -73 dBm which is S9 on a ham radio RX. It does it no matter what % modulation (0-100) on AM but not on FM, PM, etc. I was using 1 KHz AM modulating tone. I had the ouput Z set for 50 ohm but I also tried 75 ohm and HiZ. I really think it is a firmware issue. Just turning Mod on/off makes the signal drop 6 dB no matter what modulation %. NOTE you only see the dB AMPlitude output option when you are NOT on HiZ impedance which you can change under the "utility" button.
Thanks for the comparison. I have an older version of the Koolertron, the problem I've found is noise and distortion at output levels less than about one volt. Did you look at the quality of output for the Uni-T at the lower output levels?
You bet and thanks for the feedback! I did do some THD testing and talked about it in this video; ruclips.net/video/freyCNG1UtA/видео.html I'll have to do a follow up on this generator;)
@@KissAnalog Thanks for your reply, I'm a novice so not really sure about advanced electronics. I have read elsewhere that when aligning CB radios on low frequencies (or it might be high it makes no difference in this instance), that the max dB needs to be quite low, low as in 0.5 mV or something. I've read that the newer inexpensive digital type sig gens (like this one) do not provide sufficient attenuation at these low (or is it high) frequencies, and so people who don't have much money to spend opt for the older dedicated RF generators due to the cost. Is that right ? I was thinking a way round this would be to buy a cheap waveform generator like the one in the video and use separate attenuators to get the signal down !
Great question, and although I haven't tested one, I would think it would be the same goodness. It also has 14 bits and 200 Msa, so I think it would only be different in max frequency. Here's a link:) amzn.to/3ABDJz3
Koolertron has a potential, but it looks like overshoot compensation elements should have a different values. It may even need another compensation somewhere else in circuit. What is the power usage of Koolertron and Uni-T? (For the battery conversion)
Does the UNI-T support doing a sweep across higher frequency start/stop intervals? By this I mean you demonstrated a very low to the 400KHz sweep, but could it do for example 1MHz to 5MHz?
Thanks for asking but I don't have experience with the FY6900, but the display is much smaller (2.4" vs 4.3"). Also the freq of the other waveforms seem much lower, so this is something to compare. Here's the link to the Uni_T: amzn.to/3ZD61Vt
for some reasons that escape me, every time I watch your videos I picture James Hetfield in my mind.. beside that, I really enjoy and learn from every single one I watched (once James's picture fades to black ;)
@@KissAnalog I already bought the "E" model from Aliexpress since it's around $30 cheaper than on Amazon. I think the difference with the letter is the geographic zone since Amazon only has the non E version. It'll take about 3 weeks since is shipped from China (to FL USA). Cheers!
for mainly audio work should I get the 30 MHZ unit or spend twenty-five dollars more and get the 60 MHZ version they are on sale for prime day for 143 and 167 dollars
Like the large LCD. But sadly today's ARBs are crazy overpriced. They used to be half the price for EXACTLY the same models three years ago. :( ...don`;t know why they are so expensive now. Was pining fore the JUNTEK PSG9080, but by the time I had the money, it doubled in price!!!!!!!!!!!!!! ...WTF!!!!!!! ..same for all the rest, including the really low end ones!!!!!!!!!!!!!!!
Yes that is true, but there are two modes; high impedance and low impedance (50 ohms) and at low impedance the voltage is reduced so that it can deliver the required current, so I think we can calculate it. Is it 5V limited? I need to check;) But 5V / 50 ohms is 100 mA right?
Hi i would have really liked to see the THD of the UNI-T measured. Maybe you could do a short measurement and tell us its THD at some standard settings like 1khz 1Vpp or something. I really didnt like the Koolertron for its 0,73% THD. Thanks for your great videos!!
would be intresting to see if the sweep function has an external trigger out that syncs with the sweeptime. that way you could do some poormans bodeplotting
I really share your opinion regarding this little, affordable, and useful tool for hobbists, and professionals as well, taking into account the specs, and functions packed inside, versus price...and for us, those had traveled through the test of time, looking back those tools from yesterday, is really outstanding to access those from today's...very appreciated your presentation. My respects as always for your kindness, time, and effort in each presentation. God bless you and your family as well, and please take care of these difficult times to enjoy your work.
That's a great question! It depends on the power supply rejection that the circuit has. I will have to test this to see if we can use a lower noise power supply to get lower noise. I have a feeling that we can get a lower noise output.
Hello from Holland! And thank you for all your info and hard work! I had a quick question, which project would be the most educational to try and do? Thank you so much and keep up the great work!
Thank you very much! Great to hear from our friends in Holland;) You could try an amplifier kit so that you can practice soldering and looking at signals...
Great video. I initially thought the UNT was a United Technologies product. I'm looking for a decent combination generator/oscilloscope that will also power tweeters to keep the neighbors dogs quiet. . What would you recommend? Also, beyond that use, can you site a few real world examples of how this will help me "fix stuff" around the house and garage? Oh, I'll suggest the possibility that all three of your channels on your scope might not be equal and changing your inputs with sine and square would have been a good validation of this. Thanks again man!
I wish we had that UNI-T on sale 6-7 years ago when I purchased my Rigol 4162, which is even inferior to the Siglents despite its price... I would have saved hundred of dollars. 10 MHz must be Siglent's 6 dB down frequency:) I noticed the same problem on my Rigol 4162; at 160MHz it does not output the same set ampl level as at 50 MHz (if I remember well...).
I know what you mean... It is too bad that they don't tell you the details about signal dropping after such and such freq. It should have a large asterisk next to the bandwidth. You have to dive into the manual before buying - and that's only after you've been bitten and know what to look for. Thanks for the feedback!!
@@KissAnalog You are welcome. Very interesting video blog indeed, that I discovered on lbry.tv when looking for other electronics channels (there are fewer there). On youtube I would probably never find it.
Good video, i might have to scoup one up now, although im a HUGE fan of Signlent :) Maybe Back friday the Signlent will be a little bit cheaper than 350$ Canadian.
The frequency accuracy is only 50 ppm and harmonic content 5-10 dB higher than a much more expensive unit. But otherwise its phenomenal instrument for that price.
@@gerardregnier3457 Much less? YIKES!!! I was more than happy with the Banggood price, $142.28 delivered. This is my first order from Banggood, so I have no idea how long it takes them to deliver. ETA: I just got an email claiming that it shipped out and I'll receive it on Dec 10.
@@richardgray8593 That could be the snag. Jan. 9 was the projected delivery date. It's always a good idea to check out other sources before committing to a price. Fortunately, I have other suitable alternatives if needed.
That is exactly what I need. An ARB, Arbitrary Raveform Benerator. These acronyms are completely out'a control! To more correctly call it an AWG, Arbitrary Waveform Generator would be confusing because the Wire Guage Standard has owned this acronym for almost ever. Nice review nevertheless.
Hi, I bought a Koolertron 60 mhz signal generator. I am wondering if the unit I bought is defective because it only goes up to 15 mhz. Can you or someone please help me out? Thank you.
Another great video. I have the Koolertron. I would love learn more uses for it. I mainly just use it to check crystals and If I need a clock signal. It works fine for my needs. I also bought the xr2206 diy kit for like 7 bucks from circuit pop. It's amazing how cheap technology is getting. My sub 60 dollar oscilloscope came in the mail today. It's my 4th scope. I get addicted to buying them and meters. Your stuff ranges from low end to high end. Have you ever thought about doing a total bench setup cost video? just what you consider essential to getting started. Maybe have entry level setup to elite level setup. I was pricing out stuff on banggood and I think for under 200 bucks anybody could have a decent setup. That includes all the basics plus extras like esr meter, a function generator, ESD mat, small hand tools and misc supplies.
Comparing sampling (oscilloscopes) with signal generation at high frequency is flawed. If the sampling frequency is fixed e.g. 200 MHz, then a scope can only resolve 100MHz and anything too high is hit and miss. 2.5x rule is a good idea but 10x is better. With signal generation, then you only need to generate at 200MHz rate to reproduce exactly a sine wave at 100MHz. Lower the frequency e.g. 190MHz and you can also reproduce a perfect sine wave at 95MHz. The specs may only tell half the story as how the devices go about their magic may be different, also how they deliver reliably into a load matters greatly. Siglent don't seem to have trouble selling their expensive products and they are available through distributors and not affiliate links.
Thanks Simon for this feedback. You are right about the 2.5x rule, and that it should actually be higher. I think 10x is great, but from what I see from other 'big' name scope companies is that 5x is probably the right number. Also, I think we are talking about the sampling rate Sa/s not the analog bandwidth (MHz). Although, the analog bandwidth is or can be part of the problem, so to keep tolerance to +/-3% I think 3x is used, or 5x for closer to 2%. Depends on the type of filtering for the BW I think. Great point, I'll have to do a video on this and see if we can explore this concept...
The uni-t, impressive bang for the buck but man... The font they use is really chintzy. Just changing that would really improve the impression I get for the tool.
@@KissAnalog no sorry. Mine is like the better model of the koolertron but not produced by them. It has 300msa per channel and has sweep functions and a nice screen. I think most of the koolertron and those other weird names are made by a company named juntek or something similar.
Thanks for letting me know. It seems that after I post a link the price goes up... I should get a kickback right;) Here's a link where it is 149.99 wwwGDmYQ7I8m0.banggood.com/custlink/
Hey Andy... another great vid... thanks. Time I updated my bench sig-gen. Have you seen this new scope being offered by RS Components? It’s one their in-house branded units (RS-Pro). I just received their add-mail but it’s weird when you see a piece of gear & you go wow that’s so familiar. Check out what has gotta be a re-badge (but running completely different options) of our GW-Instek MDO 2204 you have at your bench as the RS-Pro tinyurl.com/y4rzw9p5
Thanks!! That's crazy, but I'm not too surprised. Tektronix has used Instek Power Supplies with their badge on them, so I think GW has been doing this type of thing for awhile. I think it does look funny when it looks exactly the same but the badge;) I think it is the Instek MSO and not my MDO though - then it probably matches up straight away. The MSO has the digital output and my MDO has the Spectrum Option. Other than that, I think they are the same.
@@KissAnalog yes, I watched your vid on the GW MDO 2240G during the 1st Lockdown in my country back in April 2020 & based on your presentation I ordered one from the local agent. It took about 2weeks to ship into New Zealand from Taiwan & I had it delivered to my home directly, all quite incredible at the time because such services should have all closed down! It’s great testing HiFi amps. I’m thinking I might add the UNi-T ARB soon as well!
Use the name of the instrument when commenting and not the utterly confusing "this guy, new guy, other guy, etc." Turns a useful video into one not worth watching. Pity.
Thanks for the feedback John, and sorry that you didn't like it. I find doing RUclips videos fun and hopefully helpful to others that do find them coherent. As a hobby, like many, it does take a lot of time from my family - and is an expensive endeavor. For this video, I purchased equipment that I didn't need, but thought it would be of value to others, and then spent a considerable amount of time to produce and share this video. I do try to get better along the way - but I am providing videos at my expense and of course they are not professionally produced. Maybe in a few years, if you come back to the channel, they will be up to your standards.
![[SFM] Risky Recital](http://i.ytimg.com/vi/RzNkY1_Nk3o/mqdefault.jpg)
Hello. The UTG962 has 4 kpts capacity for arbitrary waveforms, found it on page 40 in the manual. Great review, many thanks.
Thank you so much! Wow, now I am even more impressed! ;)
These guides are invaluable for poor college students! Thank you so much!
Thank you! Great feedback!
I am happy that I found your channel! Great job with the intro, and the following demos. My electronics class was back in 70-72, but I've always kept a minor interest in the subject. I am now waiting for my Uni-T UT962 to arrive. It's Super Bowel Sunday, BUT I'll be playing with the UT and my 4ch. Pico automotive scope. As to your fondness for the EKG waveform, the Uni-T has the best depiction; I speak from >30yrs of experience in emergency services as a Lt. FF/PM, and ED-RN (I know how to read them, and also taught for aprox. 20yrs) trust me, I'm from the Gov. : -) Seriously, 20min into your video I'd subscribed, and I think that you did a great job on a subject of broad SCOPE. Thank you, as I sit here waiting for my Uni-T AWG.
LOL Thank you so much for this great feedback!! I scrolled down looking for subs to respond to - as it is getting difficult to keep up with all the comments. And - I was happy to read this comment;) Please ask anything you like and/or suggest videos;) Looking forward to you John;)
Much appreciate spending the time conducting the comparison. I have the Kooletron and find it's a solid func gen but wish the display was larger and had more counter digits.
Thanks for your feedback! I would agree with you;)
It’s people like you that make my life a little easier and better. Thanks for the presentation
That is so nice for you to say! Thank you!
@43:05 for the Koolertron, you see this weird bump. Since we are talking MHz domain, might these be reflections from an impedance mismatch? If it is, is the source impedance of the koolertron mismatched?
Eddie - Great reviews. You helped me make my decision. I opted for the Uni-T 962E and have not looked back! Actually its fun to use too!
Thanks for the great feedback! I like this little generator too;)
Thanks for that review Eddie. I just ordered the 60mhz from your link.
Thank you! I appreciate you! Let us know how you like it;)
I'm looking to buy a signal generator today so your video is especially helpful!
Thanks - that’s great to hear!
This is the tool, I need to learn how to use. Great video and awesome explanation. You are an awesome teacher.
Thank you Davi Santos! I appreciate you!
A lot of people talk about the features and prices of function generators but no one talks practically about WHY? Why do you need a function generator? What does it do for you besides drawing those graphs on the oscilloscope?
Thanks for the great question! I’ll do a video to answer this.
Thanks for the review. It helped me make my decision which is the Uni-Trend.
That's great! Thanks for the feedback!
See a big inductor atop the stack of gear, vertically loaded antenna coil? Enjoyed the review, expecting delivery of a Uni-T next week. Thumbs up here.
Thank you! That’s actually a power resistor. Looks pretty cool;)
20vPP is in HiZ. They are all probably limited to 10VPP in 50 ohm termination mode. The Siglents typically limit their PP output to 10VPP (50 ohms) to 20MHz and then (5vPP after 20MHz). That is a very important consideration.
Very good point! I think the main difference is the source impedance is 50 ohms, so if the output is also 50 ohms then the voltage is divided in half. If the output impedance is Hi-Z then the output sees the full voltage and it is not divided in half. Thanks for this!
@@KissAnalog I think the Siglent you have cuts its output in half after 10MHz or 15MHz? I use the SDG2xxxx Series and the SDG5162 (after software upgrade). The SDG200x Series is rock solid with VisaCom control (GPIB commands but through the USB Port), but the SDG5162 is older and somewhat flaky under software control. I would never recommend the the Siglent SDG5000 series, but the other ones are fantastic. Look at an SDG2000XE. It runs circles around a $5000 Agilent 33250A. It is two channel and you can easily combine (short) both channels together to create unique signals needed in my industry. You can also use a BNC-TEE to short the two channels of the SDG5162 together to create those same signals. It is solid except under software control.
@@Daveyk021 Thanks for the great feedback!
I almost bought siglent, but then i found out about that uni-t. Glad i did, cheaper and have been really happy how it works! Great video!
Thank you! I agree - I think the market is going to have to chase them - I hope;)
I had the Siglent and sold it as it's just too big and bulky.
I would have liked to have seen the software for each of them, or know if they even offer a package with each unit. One of the main reasons I use an arb it because I have some nonstandard waveform I need to create. Sometime I will use other equipment to capture a waveform and will need to play it back with the arb. If the companies offer some sort if library were you can write custom software to control them, even better. I see a part 2 in your future!
I think you are right Joe;) It was just getting so long... I also would like to look under the hood. Thanks for the suggestion! BTW, I can’t stop watching your videos;)
👍👍 this is a promissing enjoyment hour video for tonight 🙂🙏
Thanks guys!! I appreciate it - sorry for the length;)
@@KissAnalog Don't apologize for the length. Anybody who thinks it's too long can watch at 2X speed.
Thank you Richard!
As a starving student, I was searching high and low for a thorough review of this gen, glad I finally found this one! Have you thought about incorporating teardowns and offering your two cents on the layout and component selection in future reviews?
Thank you! Yes, I was going to do a tear down but I was afraid of the length of the video. I thought I might use if for a bit and then do a follow up and show a tear down comparison to the others that I have. That's great feedback - I appreciate you!
Nice, I am curious about FY6800, FY2300H respectively vs. Uni-T ARB
Thank you! That sounds very interesting;)
The Uni-T looks pretty good. Also on the Koolatron the output may be just crap output buffer design, ...you probably suspect the same! :)
Thanks Steven. I’d like to take a look but just haven’t found the time yet:)
The touch features on that micsig are awesome. I seen a new Rhode and Schwartz and it had a 15 inch touch screen. A years salary hahaha
I do really like the touch features of the Micsig. We had a new R&S, Tek, and Keysight at the lab I worked at and all had touch screens. The Tek was the one I liked least and the Keysight was the best. The Keysight just seemed like a normal scope with cool features - like the Micsig, but the others were loaded with menus that took several touches to get to where you wanted to go - that other scopes had handy right on the screen.
@@KissAnalog I get ya. Overly complex foe the sake of it to justify the price
Merry Chritmas! I have a question: how pure is the sine out of that Uni-T generator, in audio band? I ask you because I was trying to measure the THD of an amplifier using my Siglent DSO 1204 X-E in FFT mode, and my cheap "Feeltech" arb waveform generator, and I also made some measurements with a PC soundcard using SpectraLAB software, but it looks to me that the output of the signal generator is already affected by some -50 or -60 dB 2nd harmonic, as well as some similar amplitude of 3rd harmonic, making really hard to measure the THD of the amp alone. How well does the UniT behaves in this respect?
Thanks - and great question! I found similar results using the Siglent and Uni-T. I suppose one thing you can do is use the input spectrum to compare the output spectrum. If you have a harmonic on the input (or set of harmonics), then you can see what their amplitude and freq is on the output to see if they are at the same freq and same gain between peaks. Is the noise floor at the same level or is it amplified also? I think to get a clean input you almost need a sinewave generator. But, I do think my bluetooth boards gave a cleaner signal. I should do that video comparing a cheep bluetooth preamp vs the ARB generators;)
@@KissAnalog I believe that it would be very interesting, and you might also add other generators that you have, and make a comparison!
Only recently I realized how hard it is to make serious measurements of small signals, especially with cheap "hobbyist grade" equipment. Thanks for your suggestion, and I'm going to watch many others of your videos in this subject, that I just noticed I have missed ;-)
Decent review for sure, thanks. Does the UNI-T power up with the last used settings?
I use a single channel Arb on my scope, but the main problem with it is (unlike the scope channel settings) it resets to default values when the scope is powered off and on. So this could be an affordable alternative if your answer is YES :-)
Thank you! That is a great question, and I forgot to discuss this in the review. Yes it does, or at least it keeps the settings for both channels, but it does come up with them in the off state. Which I think this is great, so that it gives me the chance to say - yes now put out that signal;) usa.banggood.com/custlink/vGmY5LajKj
Hi Eddy, 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!
Thanks for pointing this out. I haven't noticed that but I'll check it out. It could be that with Amplitude Modulation that it needs some amplitude to work with so it drops the signal. What signal level did you have on it when it did this? If you drop your signal down - does it still do it?
@@KissAnalog I was generating -33 dBm and then into a 40 dB attenuator to simulate -73 dBm which is S9 on a ham radio RX. It does it no matter what % modulation (0-100) on AM but not on FM, PM, etc. I was using 1 KHz AM modulating tone. I had the ouput Z set for 50 ohm but I also tried 75 ohm and HiZ. I really think it is a firmware issue. Just turning Mod on/off makes the signal drop 6 dB no matter what modulation %. NOTE you only see the dB AMPlitude output option when you are NOT on HiZ impedance which you can change under the "utility" button.
Thanks for the comparison. I have an older version of the Koolertron, the problem I've found is noise and distortion at output levels less than about one volt. Did you look at the quality of output for the Uni-T at the lower output levels?
You bet and thanks for the feedback! I did do some THD testing and talked about it in this video; ruclips.net/video/freyCNG1UtA/видео.html
I'll have to do a follow up on this generator;)
@@KissAnalog Thanks. I'll check it out.
Hi Eddie, another great informative video, very nice. Thanks so much.
So nice of you
Great video, do you know if I would need a separate attenuator if using this sig gen to align CB radios ?
Great question! This generator can be set to 50 ohms output impedance, so will that work for you?
@@KissAnalog Thanks for your reply, I'm a novice so not really sure about advanced electronics. I have read elsewhere that when aligning CB radios on low frequencies (or it might be high it makes no difference in this instance), that the max dB needs to be quite low, low as in 0.5 mV or something. I've read that the newer inexpensive digital type sig gens (like this one) do not provide sufficient attenuation at these low (or is it high) frequencies, and so people who don't have much money to spend opt for the older dedicated RF generators due to the cost. Is that right ? I was thinking a way round this would be to buy a cheap waveform generator like the one in the video and use separate attenuators to get the signal down !
Do you think the 30 MHz one would work just as good? Thanks for all the info.
Great question, and although I haven't tested one, I would think it would be the same goodness. It also has 14 bits and 200 Msa, so I think it would only be different in max frequency. Here's a link:) amzn.to/3ABDJz3
Hey Eddie, how do you calibrate this generator? Mind reads 40 Hz high. I don't see a TCXO to adjust.
Hello! A very nice review! Sorry a question. At 30 mhz have you measured the precisión with a frecuency meter! Thanks
Koolertron has a potential, but it looks like overshoot compensation elements should have a different values. It may even need another compensation somewhere else in circuit.
What is the power usage of Koolertron and Uni-T? (For the battery conversion)
This is great feedback/thank you!! I will have to do a follow up and answer these questions. Thank you!!
Consumption current of my UTG932E from a 5V power supply - 1.17A (one channel, sine 30MHz, 10V p-p, 1MOhm load)
Does the UNI-T support doing a sweep across higher frequency start/stop intervals? By this I mean you demonstrated a very low to the 400KHz sweep, but could it do for example 1MHz to 5MHz?
Should I go for the UT932E or the FY6900? I'm quite unsure which one to get
I had the same question. Then I chose the UNI-T.
Thanks for asking but I don't have experience with the FY6900, but the display is much smaller (2.4" vs 4.3"). Also the freq of the other waveforms seem much lower, so this is something to compare. Here's the link to the Uni_T: amzn.to/3ZD61Vt
for some reasons that escape me, every time I watch your videos I picture James Hetfield in my mind.. beside that, I really enjoy and learn from every single one I watched (once James's picture fades to black ;)
LOL Thanks - much appreciated!
How is the performance of the micsig oscilloscope you are using ?
Thanks for asking! I really like it! It has become one of my favorites! Here’s a link;)
@@KissAnalog The link did not came. Thanks for the reply. :)
@@KissAnalog I also saw it has HDMI features. Can i able to see the waveforms in my monitor ?
Great videos! I'm trying to figure out what's the difference with the no "E" version but I can't find any info about it.
Thanks for the great question Dusko! I looked into this once and couldn't see a difference. Anyone out there know?
@@KissAnalog I already bought the "E" model from Aliexpress since it's around $30 cheaper than on Amazon. I think the difference with the letter is the geographic zone since Amazon only has the non E version. It'll take about 3 weeks since is shipped from China (to FL USA). Cheers!
for mainly audio work should I get the 30 MHZ unit or spend twenty-five dollars more and get the 60 MHZ version they are on sale for prime day for 143 and 167 dollars
for audio work the 30 MHz is more than enough;)
Like the large LCD. But sadly today's ARBs are crazy overpriced. They used to be half the price for EXACTLY the same models three years ago. :( ...don`;t know why they are so expensive now. Was pining fore the JUNTEK PSG9080, but by the time I had the money, it doubled in price!!!!!!!!!!!!!! ...WTF!!!!!!! ..same for all the rest, including the really low end ones!!!!!!!!!!!!!!!
Hi, I didn't find the maximum output current for output DC. Do you know it ?? The uni-t
Thanks - great question! No, I think it just calls out the impedance of 50 ohms. So, it will put out enough current to drive 50 ohms.
@@KissAnalog if the 50 ohms is constant then the current will increase if the voltage increase I = V/R ?
Yes that is true, but there are two modes; high impedance and low impedance (50 ohms) and at low impedance the voltage is reduced so that it can deliver the required current, so I think we can calculate it. Is it 5V limited? I need to check;) But 5V / 50 ohms is 100 mA right?
I read the UTG962E is 4kpts. Also the THD is important and I can't find it.
Thanks John! I finally found that spec;) I just posted a video on the THD: ruclips.net/video/TQPQmziLaPw/видео.html
@@KissAnalog Thank you
Awesome presentation 👏👏👏👏💞
Thank you so much!
@@KissAnalog welcome dear 💞
It's the new chips, they make a star out of everyone. A couple of years old and the new equipment beats the heck out of it.
You have a great point! Thank you;)
Where did you purchase the UTG962E from.
Thanks for asking! I just added a link to the description, and here it is: usa.banggood.com/custlink/vGmY5LajKj
@Paul Life That's a great question! I thought I saw the e version on Amazon, but the non-e version looks the same. See link: amzn.to/3jOOgjD
On the Uni-T, what freq can it go up to with a sine wave (FM modulated at %50)? .. want to use it for FM 10.7 MHz IF alignments …
Hi i would have really liked to see the THD of the UNI-T measured. Maybe you could do a short measurement and tell us its THD at some standard settings like 1khz 1Vpp or something. I really didnt like the Koolertron for its 0,73% THD. Thanks for your great videos!!
Thank you! I will do that. I appreciate you!
The UT is a nice model. I went for a model a little more expensive but I've always regretted it
Yes this is pretty nice - especially when comparing the cost;)
would be intresting to see if the sweep function has an external trigger out that syncs with the sweeptime. that way you could do some poormans bodeplotting
That's a great question! I'll have to look into it. Thanks!
Uni-t seems great. 60meg is around 225 from what I can see. Worth it imo
I have really liked using this generator. It is now under $210: amzn.to/45F2EB5
I really share your opinion regarding this little, affordable, and useful tool for hobbists, and professionals as well, taking into account the specs, and functions packed inside, versus price...and for us, those had traveled through the test of time, looking back those tools from yesterday, is really outstanding to access those from today's...very appreciated your presentation. My respects as always for your kindness, time, and effort in each presentation. God bless you and your family as well, and please take care of these difficult times to enjoy your work.
Thanks so much! I appreciate you!
Another informative video.. Thank you..
Thanks for watching!
Can you remote control the Uni-T Arb 60 through USB interface
Great question! I'll have to check out the software.
Does the power supply of the generator make a difference in the noise? I presume transformer power supply generates much less noise.
That's a great question! It depends on the power supply rejection that the circuit has. I will have to test this to see if we can use a lower noise power supply to get lower noise. I have a feeling that we can get a lower noise output.
You are great! Popcorn some thing nice to drink. And enjoy a thriller for 1 hour and 15 minutes. Will the Uni-T survive?
LOL - I don't want to ruin the ending;)
Hello from Holland! And thank you for all your info and hard work! I had a quick question, which project would be the most educational to try and do? Thank you so much and keep up the great work!
Thank you very much! Great to hear from our friends in Holland;) You could try an amplifier kit so that you can practice soldering and looking at signals...
Great video. I initially thought the UNT was a United Technologies product. I'm looking for a decent combination generator/oscilloscope that will also power tweeters to keep the neighbors dogs quiet. . What would you recommend? Also, beyond that use, can you site a few real world examples of how this will help me "fix stuff" around the house and garage? Oh, I'll suggest the possibility that all three of your channels on your scope might not be equal and changing your inputs with sine and square would have been a good validation of this. Thanks again man!
I wish we had that UNI-T on sale 6-7 years ago when I purchased my Rigol 4162, which is even inferior to the Siglents despite its price... I would have saved hundred of dollars. 10 MHz must be Siglent's 6 dB down frequency:) I noticed the same problem on my Rigol 4162; at 160MHz it does not output the same set ampl level as at 50 MHz (if I remember well...).
I know what you mean... It is too bad that they don't tell you the details about signal dropping after such and such freq. It should have a large asterisk next to the bandwidth. You have to dive into the manual before buying - and that's only after you've been bitten and know what to look for. Thanks for the feedback!!
@@KissAnalog You are welcome. Very interesting video blog indeed, that I discovered on lbry.tv when looking for other electronics channels (there are fewer there). On youtube I would probably never find it.
Good video, i might have to scoup one up now, although im a HUGE fan of Signlent :) Maybe Back friday the Signlent will be a little bit cheaper than 350$ Canadian.
I was wondering if you would change your mind after this video;) If Black Friday doesn’t bring s great deal then maybe I can;)
@@KissAnalog I will keep you posted !
Thanks!
Thank you!
The frequency accuracy is only 50 ppm and harmonic content 5-10 dB higher than a much more expensive unit. But otherwise its phenomenal instrument for that price.
Thank you F Roy! I agree;)
Thank you dear,
Something better than nothing
Thank you !!
@@KissAnalog welcome dear
Where can I purchase a Uni-T ARB 60 MHz Generator?
I just ordered mine from BangGood
@@richardgray8593, I just ordered mine from eBay for much less than BangGood prices.
Thanks for reminding me ;) I'll put a link in the description. Nice little ARB.
@@gerardregnier3457 Much less? YIKES!!! I was more than happy with the Banggood price, $142.28 delivered. This is my first order from Banggood, so I have no idea how long it takes them to deliver. ETA: I just got an email claiming that it shipped out and I'll receive it on Dec 10.
@@richardgray8593 That could be the snag. Jan. 9 was the projected delivery date. It's always a good idea to check out other sources before committing to a price. Fortunately, I have other suitable alternatives if needed.
That is exactly what I need. An ARB, Arbitrary Raveform Benerator. These acronyms are completely out'a control! To more correctly call it an AWG, Arbitrary Waveform Generator would be confusing because the Wire Guage Standard has owned this acronym for almost ever. Nice review nevertheless.
You are right - I can't keep track of them;)
Hi, I bought a Koolertron 60 mhz signal generator. I am wondering if the unit I bought is defective because it only goes up to 15 mhz. Can you or someone please help me out? Thank you.
given the price, UNI-T is a no-brainer!
I'd say that you are right;)
Another great video. I have the Koolertron. I would love learn more uses for it. I mainly just use it to check crystals and If I need a clock signal. It works fine for my needs. I also bought the xr2206 diy kit for like 7 bucks from circuit pop. It's amazing how cheap technology is getting. My sub 60 dollar oscilloscope came in the mail today. It's my 4th scope. I get addicted to buying them and meters. Your stuff ranges from low end to high end. Have you ever thought about doing a total bench setup cost video? just what you consider essential to getting started. Maybe have entry level setup to elite level setup. I was pricing out stuff on banggood and I think for under 200 bucks anybody could have a decent setup. That includes all the basics plus extras like esr meter, a function generator, ESD mat, small hand tools and misc supplies.
That's a great idea! Thanks - I'll have to put that together, maybe a couple different budget classes;)
Yes
Thanks Stan!
Comparing sampling (oscilloscopes) with signal generation at high frequency is flawed. If the sampling frequency is fixed e.g. 200 MHz, then a scope can only resolve 100MHz and anything too high is hit and miss. 2.5x rule is a good idea but 10x is better. With signal generation, then you only need to generate at 200MHz rate to reproduce exactly a sine wave at 100MHz. Lower the frequency e.g. 190MHz and you can also reproduce a perfect sine wave at 95MHz. The specs may only tell half the story as how the devices go about their magic may be different, also how they deliver reliably into a load matters greatly. Siglent don't seem to have trouble selling their expensive products and they are available through distributors and not affiliate links.
Thanks Simon for this feedback. You are right about the 2.5x rule, and that it should actually be higher. I think 10x is great, but from what I see from other 'big' name scope companies is that 5x is probably the right number. Also, I think we are talking about the sampling rate Sa/s not the analog bandwidth (MHz). Although, the analog bandwidth is or can be part of the problem, so to keep tolerance to +/-3% I think 3x is used, or 5x for closer to 2%. Depends on the type of filtering for the BW I think. Great point, I'll have to do a video on this and see if we can explore this concept...
This Uni-T seems to be YOOGE bang for the buck.
Thanks Richard! It sure does;)
The uni-t, impressive bang for the buck but man... The font they use is really chintzy. Just changing that would really improve the impression I get for the tool.
Thanks for the feedback Jonas! One thing I like is it is large and easy to see;)
@@KissAnalog yes, I mean the font styling. Looks like times new Roman.
You can build your own as well I'm pretty sure
Yes Joey I'm sure you are right - but there is so much more we can do;)
@@KissAnalog I think I was talking about something else. What I said made no sense hahaha sorry man
Mine has Bluetooth and a pc app. Mine is only a 400 dollar rebranded Chinese one
Wow - do you mean the Siglent? Thanks Joey for the feedback!
@@KissAnalog no sorry. Mine is like the better model of the koolertron but not produced by them. It has 300msa per channel and has sweep functions and a nice screen. I think most of the koolertron and those other weird names are made by a company named juntek or something similar.
The voice waveform on mine says "Rigol" 💀
LOL - run;)
It's already up to $200
Thanks for letting me know. It seems that after I post a link the price goes up... I should get a kickback right;) Here's a link where it is 149.99 wwwGDmYQ7I8m0.banggood.com/custlink/
Hey Andy... another great vid... thanks. Time I updated my bench sig-gen. Have you seen this new scope being offered by RS Components? It’s one their in-house branded units (RS-Pro). I just received their add-mail but it’s weird when you see a piece of gear & you go wow that’s so familiar. Check out what has gotta be a re-badge (but running completely different options) of our GW-Instek MDO 2204 you have at your bench as the RS-Pro tinyurl.com/y4rzw9p5
Thanks!! That's crazy, but I'm not too surprised. Tektronix has used Instek Power Supplies with their badge on them, so I think GW has been doing this type of thing for awhile. I think it does look funny when it looks exactly the same but the badge;) I think it is the Instek MSO and not my MDO though - then it probably matches up straight away. The MSO has the digital output and my MDO has the Spectrum Option. Other than that, I think they are the same.
@@KissAnalog yes, I watched your vid on the GW MDO 2240G during the 1st Lockdown in my country back in April 2020 & based on your presentation I ordered one from the local agent. It took about 2weeks to ship into New Zealand from Taiwan & I had it delivered to my home directly, all quite incredible at the time because such services should have all closed down! It’s great testing HiFi amps. I’m thinking I might add the UNi-T ARB soon as well!
Wow - let us know how you like it;)
It seems to be a bargain!
It is I think. I like the size and the large display, and the 2 channels at 60 MHz. Here's a link: amzn.to/3IREmcQ
Use the name of the instrument when commenting and not the utterly confusing "this guy, new guy, other guy, etc." Turns a useful video into one not worth watching. Pity.
Thank you John! I appreciate your feedback and I'll work on this;)
not very coherant needs sevral rehersals before expanation
Thanks for the feedback John, and sorry that you didn't like it.
I find doing RUclips videos fun and hopefully helpful to others that do find them coherent. As a hobby, like many, it does take a lot of time from my family - and is an expensive endeavor.
For this video, I purchased equipment that I didn't need, but thought it would be of value to others, and then spent a considerable amount of time to produce and share this video.
I do try to get better along the way - but I am providing videos at my expense and of course they are not professionally produced. Maybe in a few years, if you come back to the channel, they will be up to your standards.
expensive analog equipment
Thanks for commenting. Do you think this is expensive? Or do you mean that you prefer analog equipment that is more expensive?