Koolertron 15MHz High Precision DDS Signal Generator Counter,Upgraded Dual-Channel Arbitrary Waveform Function Generator Frequency Meter 266MSa/s (15MHz)

Due to the small footprint of the CJDS26-S devices on my bench, I have limited space An ideal temperature would be F! I have tested the unit and it is very accurate. In order to test the assembly of a OneTesla TS kit that I purchased, I purchased the unit. A signal was injected into the second coil and the coil's resonance was found by scanning a range of output frequencies. The sound card also drives a couple of small speakers, so I can do some I would highly recommend it.

Jeremy POWER

| Sep 29, 2020

It is worth the price. Please click here. The frequency sweep feature of this device is intended for simulating frequency feedbacks from industrial controls, while the dual channels can be utilized in simulating encoder feedbacks from quadrature encoders. Hence, you can see the sweep in operation if you watch the video. My first attempt was not too difficult, but I had to configure it for some reasons. Here's a picture of the encoding unit set up to generate encoders in the second photo The feedback is very helpful. One of the main disappointments is that there does not seem to be a way to make the second channel track the frequency of the first, so even the preset speeds have to be individually changed in order to simulate the different speeds. The following updates have been made I found a way for the two channels to keep the same frequency/amplitude/ wave shape/ phase shift, etc. , when the two channels are positioned in the same way. There is a system menu item for it. In the future, I'll be able to do frequency sweeps on quadature encoder signals. The perfect answer to my question! According to the scope and DMM hardware counters, frequencies are dead on. A scope doesn't make it easy to check voltages with precision, so the voltages on the scope show a bit high. In order to measure the RMS voltage of the output from a sine wave generator, I setup the unit for 60Hz frequency. Transforming into a peak-hour system With a peak voltage set near the generator, there was a very good match. It appears that the waveform looks clean up to 15MHz maximum frequency, which is the highest frequency I am able to get with the device In the third photo, you can see what's inside the unit. The 555 timer is certainly not just a tweaked version!.

Darius Fletcher

| Aug 18, 2021

At the extreme end of its capabilities, it runs out of steam, but up to its limits it works quite well. It is one of the few (at this price) capable of handling the entire audio band as well as a fair bit of IF radio band. It produces 20 volts which is important for tube All you really need is this equipment to build a home electronics lab. If you are in the market for exotic items, you can expect to spend a ton of.

Michael BEGUM

| Aug 31, 2021

It was very portable, easy to use, and worked fine. There is only one thing I wish it had battery power. A power extension cord was required, but it didn't pose much of a problem. I was very satisfied with the performance of this little device. I received a $1000 payment from one of my customers A meter whose output was limited to 10 kHz was not suitable for our purpose. We needed pulses of 100 kHz, and its output was only 10 Thanks to the last-minute purchase of this device, I was able to bring it along. I was very impressed by my customer and he wished to have one of his own.

Denver Colon

| Oct 30, 2020

You get a nice clean sine wave signal from 10 mV to 5 V at 60 Hz and 200 kHz. The channel 2 to channel 1 gating was intuitive. I never had to read a manual or insert a CD to use it. I was using it in a few minutes as I needed it. The following is a top-down list of what we wish we had in our software I can get it to start up the way I had it the last time I used it!.

Kamari Navarro

| Nov 04, 2020

A nice, well-built chair that works pretty much like it should. The first thing that occurs to the eye is that you can AM modulate one channel with the other, but that's not true. Amplitude modulation can only be achieved using the arbitrary waveform feature, and there aren't enough points to make something like a 455KHz carrier modulated with 1KHz signals possible. I decided to return the unit for that reason. I received an immediate refund after completing that process without any hassle.

Elias Cross

| Sep 30, 2020

A wide range of test signals can be generated using this unit, so you can perform almost anything you need. While I found the interface easy to use, even so it is not ideal and took some getting used to. Taking extensive notes and creating my own draft Operation Manual was not an easy endeavor because the interface is so hard to use INCONSISTENT, INDIRECT, and OUT OF THE BOX Designed with the user in mind. In a well-designed and useful product, the intention of "Usability" is lost as well as consistent design and control. (BTW, I am and have been a user experience designer, so I am not pretending to be infallible. ) At the price, I found it useful and reliable, so I would recommend investing in it. This issue of poor quality documentation is common in many products from China that are otherwise technically good. I also have the exact same functionality unit in a tan plastic bench model case with a tilting handle so I can grab it and set it down by According to what I've heard, there is no difference at all as for functionality or capability between the two units. The only difference is the size of the case and having to rely on your own source of 5 VDC, which is usually not a problem. Typically, you would be able to feed it 5VDC either from the USB Lithium Power Packs or from a 5VDC wallwart supply with a coaxial cable. Through the use of a 20,000 mAh USB Power Pack and my custom cable, I was able to run this unit continuously for over 24 hours.

Colette Miranda

| Nov 12, 2020

Upon receiving my first unit, it was dead on arrival. I quickly returned it for a moment. It is important to understand that DDS waveforms tend to be noisy compared to other generation techniques. These waveforms are "single sweeps" to illustrate the quantization noise. This is usually not a show-stopper but you should be aware of it. The use of a low pass filter can be helpful. There is no guarantee that all waveforms still look the same at 60 MHz, only the sine remains separate. I am able to measure the output Z at Even with that said, I still find it amazing that so many features can be attainable for such a small amount of money.

Maren Clements

| Feb 14, 2021