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Koolertron Upgraded 60MHz DDS Signal Generator Counter,High Precision Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 200MSa/s (60MHz)

4.4 4.4 out of 5 stars 934 ratings
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60MHz
  • Arbitrary Waveform Generator adopts large scale FPGA integrated circuit and high speed MCU microprocessor. The internal circuit adopts active crystal oscillator as benchmark. So the signal stability is greatly strengthened.
  • Using Dual-channel DDS signal and TTL electric level output to generate precise, stable, low distortion output signal. includes Sine wave, Square wave, Triangle wave, Sawtooth wave, Pulse wave, white noise, user-defined waveform etc. each channel can be independently set the parameters.
  • With linear sweep(Max. up to 999.9s) and logarithmic frequency sweep functions.Has a frequency measurement, period measurement, positive and negative pulse width measurement and counting function.
  • Storage feature: You can store 99 groups instrument state parameters set by the user, can be called up to Reproduce. Frequency output of Sine wave can be up to 60MHz. 200MSa/s sampling rate. It has 60 positions for saving user-defined waveform. Waveform Length of each one is 2048 and vertical resolution is 14 bits
  • This Signal Generator is the ideal instrument for electronic engineering, laboratories, production lines, teaching and scientific research.
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Customer reviews

4.4 out of 5 stars
934 global ratings

Customers say

Customers like the functionality, ease of use, and value for money of the precision measuring product. They mention it works flawlessly for their needs, is relatively intuitive, and offers a lot of functionality for the price. Some appreciate the frequency and accuracy. However, some customers have issues with the quality and mixed opinions on the weight.

AI-generated from the text of customer reviews

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FunctionalityEase of useValue for moneySignal strengthFrequencyAccuracyWeightQuality
145 customers mention "Functionality"129 positive16 negative

Customers like the functionality of the product. They say it works flawlessly for their needs, is easy to operate, and a nice function generator. Some say the cables are defective but mostly usable. Overall, customers are satisfied with the performance and wide frequency range of the product. The controls work well and are intuitive.

"...It is very precise. Excellent performance when I compare it with my other generators. Besides, its price is much lower than other equipment...." Read more

"...It served my purpose very well." Read more

"...First the bad: The BNC jacks or cables are defective but mostly usable...." Read more

"...very low frequency, low voltage stuff (10Hz @ 0.1V) and it does a pretty good and reliable job. So far the only thing that doesn’t work is the duty...." Read more

115 customers mention "Ease of use"81 positive34 negative

Customers find the product easy to use. They mention the front panel controls are intuitive and it's not hard to figure out the UI. Customers also appreciate the clear, easy-to-read manual.

"This is a very nice, compact and very easy to use signal generator. It is very precise...." Read more

"...The good: The user interface is very intuitive. I didn't need the manual to figure out how to change frequency, amplitude, waveform, or do sweeps...." Read more

"...display is ugly, but it's standard, and the user interface is clumsy - but it does what it's supposed to do -" Read more

"...I found the user interface for basic functions to be relatively intuitive.Signals seemed stable up to 10MHz (I have the 15MHz model)...." Read more

109 customers mention "Value for money"109 positive0 negative

Customers appreciate the value for money of the product. They say it's versatile and offers a lot of functionality for the price. Some say it's good enough for hobbyists getting their electronics feet wet.

"...Besides, its price is much lower than other equipment.Shipment was fast!I recommend it 100%" Read more

"...It is probably good enough for hobbyists getting their electronics feet wet, high school students, and curious characters...." Read more

"...Just a great piece of equipment at a killer price." Read more

"...Reasonable price and intuitive interface makes it easy to acquire and use...." Read more

40 customers mention "Signal strength"34 positive6 negative

Customers like the signal strength of the product. They mention it's an excellent, impressive little multi-purpose RF signal generator. The user interface is simple and intuitive, and the signals seem stable up to 10MHz. The function generator with arbitrary signal capabilities is legitimately impressive. It's portable and convenient for most laboratory needs. Customers also say the signal is clean when measured on a Rigol scope.

"...Signals seemed stable up to 10MHz (I have the 15MHz model)...." Read more

"This is a great audio generator for the money. It's stable, has a clean output, tons of features and it's really easy to use...." Read more

"...This little generator is rock solid. It is accurate and within specs...." Read more

"...what you pay for and what you're paying for here is a functional hobbyist signal generator...." Read more

37 customers mention "Frequency"30 positive7 negative

Customers like the frequency of the product. They mention it offers a stable and correct frequency. Customers also appreciate that it's a nice frequency source to test simple breadboard circuits. They like that it's also a frequency counter and the output frequency can be set to and is stable +/- 1 Hz.

"...4. What really impressed me is that they have the frequencies and impedance as accurate as they do...." Read more

"...good enough for my wow/flutter test, and the multifrequency waveform is perfect to troubleshoot filters. Everything works like it should...." Read more

"...For me this is a nice frequency source to test simple breadboard circuits and it's light enough I could pop it in the backpack and take with me...." Read more

"...all the different wave forms it provides and being able to dial in exactly the frequencies I need..." Read more

33 customers mention "Accuracy"26 positive7 negative

Customers like the accuracy of the product. They mention it's compact, precise, and easy to use for novices. They also appreciate the frequency and voltage settings are very accurate. Some say the digital adjustments are precise and the duty cycle adjustment is fine on other wave forms.

"...It is very precise. Excellent performance when I compare it with my other generators. Besides, its price is much lower than other equipment...." Read more

"...It boots up quickly. Just eyeballing it, but it seems reasonably accurate. They went to great pains to keep the price down...." Read more

"I tested pretty extensively, and it's impressively accurate...." Read more

"First things first, the generator has sweep options and manual adjustment behavior better than a $1500 generator (MFG-2260MRA) that make it much..." Read more

58 customers mention "Weight"40 positive18 negative

Customers have mixed opinions about the weight of the product. Some mention it's very lightweight, portable, and compact, while others say that pressing the buttons is difficult.

"This is a very nice, compact and very easy to use signal generator. It is very precise...." Read more

"...It is light-weight (feels almost like a cheap toy), which made it easy to carry to a job site...." Read more

"...Everything works like it should. The only negative would be the thing is so light, you have to have a hand on top when you push a button or you'll..." Read more

"...Other: It is very lightweight because the plastic case is mostly full of air...." Read more

28 customers mention "Quality"0 positive28 negative

Customers are dissatisfied with the quality of the product. They mention it's very cheaply made, the probes are poor quality, and have to be replaced. The case and feel very cheap, and it's not a high-use item.

"...that is easy to see that the equipment is not very robust and clearly of poor quality...." Read more

"...The last thing I've noticed is that it doesn't appear to have much oomph on the output...." Read more

"The quality is not that great. The accuracy is marginal and the balance between channels is very poor, When the output is set the same...." Read more

"...BNC inputs are flimsy and would like more stability on the bench as unit is very light...." Read more

Surprisingly fun
4 out of 5 stars
Surprisingly fun
I am not an electronics, math nor science person. However I do like to tinker with things and learn along the way.Picked up this DDS Signal Generator and started playing around.It appears to be very accurate in scaling and frequency response. I just started playing around with it and an old oscilloscope, and let the learning begin.I have yet to run the sweep mode buy that will happen in the next day or so. Depending on the results of that experience, I have a hole bunch of projects in mind.If you are a hardcore "science" person, this may not be for you, if you are a hobbyist of any sort, this seems to be a well produced product.The device is extremely light weight, so you will likely need to anchor it to a work surface, add a weight, add velcro... Simple button pushing can easily slide this little device about.Again, I don't know what I'm doing, but I'm already figuring out how it works - nope haven't read the instructions yet.
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Top reviews from the United States

Klaus Ziegler
5.0 out of 5 stars Excellent Product
Reviewed in the United States on February 12, 2024
Size: 15MHzVerified Purchase
This is a very nice, compact and very easy to use signal generator. It is very precise. Excellent performance when I compare it with my other generators. Besides, its price is much lower than other equipment.
Shipment was fast!
I recommend it 100%
3 people found this helpful
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Robin H.
5.0 out of 5 stars Excellent performance for the price. Drawback... no number keys on the keyboard.
Reviewed in the United States on April 27, 2023
Size: 15MHzVerified Purchase
I used my new oscilloscope to view the various output waveforms (sine, square, sawtooth etc.). They looked good on the scope, and the scope indicated that the peak-to-peak output voltage was the same as the level that I had set the generator up for. It looked to be right on the marks. You can see the digital-to-analog conversion steps in the waveform, but they were not excessive, and that is expected with a digitally synthesized generator. They were not a problem for what I needed, and will likely never be a problem for my purposes. If you will be using this to test harmonic distortion of a high-end audio amplifier, you should probably use a much more expensive generator that uses more data bits. Also, I was using a digital scope, so some of that waveform stepping (quantization) was due to the scope itself.

I placed a 50 ohm load resistor across the output terminals, and the p-p voltage dropped to 1/2 of what it was without the resistor. This is just what should happen with a generator that has a 50 ohm output impedance. It is light-weight (feels almost like a cheap toy), which made it easy to carry to a job site. I simply needed to generate a consistent modulating tone for testing a piece of radio equipment. It served my purpose very well.
9 people found this helpful
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Amazon Customer
4.0 out of 5 stars May need some work
Reviewed in the United States on March 6, 2021
Size: 15MHzVerified Purchase
I have only used this for about 2 hours so don't consider this a complete review.

First the bad: The BNC jacks or cables are defective but mostly usable. Just breathing on where the cables connect to the machine creates horrible noise visible on an oscilloscope even when the channel is turned off. Some weights on the cables to keep them still is a kludgy fix. The cable is also very stiff compared to oscilloscope cables. Finding the sweet spot where the signal is clear and uninterrupted reminds me of the old days of doing reception ballet with old TV sets.

I'm not yet 100% certain, but the voltage might randomly jump up and down slightly ( a few mV @ 1V) when going from one frequency to another.

The 2nd channel has the same noise problem. The display for it is small and hard to see. But may be a good tradeoff so that the 1st channel is easier to see on the smallish screen.

The good: The user interface is very intuitive. I didn't need the manual to figure out how to change frequency, amplitude, waveform, or do sweeps. It is actually the best I've seen on electronics test equipment. It boots up quickly. Just eyeballing it, but it seems reasonably accurate. They went to great pains to keep the price down.

Other: It is very lightweight because the plastic case is mostly full of air. It is powered by low voltage from a wallwart(ugh), but that means it could easily be made battery powered and portable. There is plenty of room in the case to add a battery pack. Its brain appears to be made by Lattice Semiconductor, I can't see exactly which chip but I assume it is an FPGA. There is a place for a 6(?) pin header on the mainboard, and a 5(?) pin header on the front panel interior which may be handy for hacking it. There are also 4 very small, cellphone antenna like sockets on the mainboard, likely for testing, but which could possibly find other uses.

Except for screwing up the cables (or sockets) manufacturing, I'd say this is a good value for price. It is probably good enough for hobbyists getting their electronics feet wet, high school students, and curious characters. Obviously it isn't intended for advanced hobbyists, scientists or electronics engineers, or those who just like the feel of high quality. Although I fall into one of the former categories, I wish I had spent 3x more for a something like a Rigol. I think I would feel differently if they had just gone the extra meter and spent a few more cents on the connectors and added rubber feet for grip so that I wouldn't feel like the magic smoke will puff out of it soon and to help me trust it a bit more as far as accuracy and that that horrendous noise won't damage delicate components.
14 people found this helpful
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Sol & Ollie
5.0 out of 5 stars Very good
Reviewed in the United States on January 10, 2024
Size: 15MHzVerified Purchase
Edited review: regarding the duty, I realized that there was specifically a pulse wave which is affected, and that the square wave is not. This was confusing since duty is selectable for all waves, but it does work. I also took this into the lab today and compared it to lab quality generators. I’m creating very low voltage, low frequency signals on this thing (10 Hz at 0.1V) and attenuating it down to about 200uV. This thing is a beast and does that no problem, even slightly better than some of the lab grade equipment we have. Do your own tests, but for my purposes this exceeds my expectations. I still have not tried creating software defined arbitrary waves, but if that works reliably I’d give this 6 stars if it was possible.

Original Review: I’m using this for very low frequency, low voltage stuff (10Hz @ 0.1V) and it does a pretty good and reliable job. So far the only thing that doesn’t work is the duty. Adjusting it still results in a fully symmetrical wave. I also haven’t tried uploading arbitrary waveforms yet, but watched a YouTube video that tracked down the required software and it seemed a bit annoying to set up. So far it’s been a productive instrument, but unfortunate that I didn’t get a feature I paid for.
2 people found this helpful
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Top reviews from other countries

Bruce M. Walker
5.0 out of 5 stars Amazing value-filled device!
Reviewed in Canada on November 10, 2020
Size: 60MHzVerified Purchase
I bought this signal generator to replace my very old (1970's) Heathkit instrument. I needed to repair some older hi-fi gear that I wanted to put back into service. I had earlier acquired a modern digital oscilloscope to use with it [Hantek DSO5102P].

This signal generator is pretty amazing. I really just needed square waves and sine waves in the audio range (20Hz - 20KHz) for my work, but I figured it wouldn't hurt to have more capability and I did spend some time trying the extra functionality out. The unit is light, but that didn't cause me any problems. It's very compact which is perfect for my tight work space.

I did find the arrow-key method for adjusting the output frequency to be a bit un-obvious and slightly annoying, but I can get used to it. (To be honest, I prefer the big sweep knob on the old Heathkit generator.)

But I cannot complain about the quality of the output signals generated or the amazing range of features it has. I will be able to use this device for all sorts of design and troubleshooting in future.
8 people found this helpful
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Clayton
5.0 out of 5 stars Easy to use. Reliable
Reviewed in Canada on March 26, 2023
Size: 60MHzVerified Purchase
It’s quite easy to use and very lightweight.

Is it lab quality accurate? Probably not. It is good enough for my day-to-day use testing circuits.

I would recommend it if your thing is simple development or repair.
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Groundforcegarden
5.0 out of 5 stars Intuitive to use
Reviewed in Canada on November 21, 2022
Size: 60MHzVerified Purchase
Great value for money, works well, my application is to inject a signal into radio receivers to align and tune.
3 people found this helpful
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Joani F.
5.0 out of 5 stars Just what we needed
Reviewed in Canada on December 28, 2023
Size: 60MHzVerified Purchase
Arrived on time and in good condition. Has amazing capabilities just what my husband needed for some lab work with his university courses
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Mathieu_Cossette
4.0 out of 5 stars Low price hobbyist signal dds
Reviewed in Canada on August 31, 2021
Size: 60MHzVerified Purchase
Low price - Low weight signal DDS. For a hobbist like me it's doing the job!
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