Recommend to a Friend

lives up to it's description

4.0

Powering up I didn't have any problems. Checking outputs further I found the touch screen easy to use. I did find on arbitrary functions that rising and falling exponentials are the opposite of how they are shown on the touchscreen. Mentioned this to Rigol and didn't hear back. In general the functions go to their limits viewing on a scope and are pretty good. Some ringing on the square wave, but that's pretty standard depending on the test leads used. The generator's amplitude output didn't match my scope's measure using peak to peak but a fairly close match using amplitude. I'll have to think about that when I want to make measurements to 2 decimal places. I didn't know beforehand many of the math functions in the library. I found quite a few are similar in shape, so not as much variations in inputs as I had expected. Also my unit was calibrated 1and 1/2 years earlier. I didn't think much of that. But the unit does have nice outputs and ease of use, particularily once one uses it a bit. I consider it high tech and better than other generators I have. I do feel the extensive library of arbitrary functions is a nice bonus, despite what I mentioned earlier.

Verified Purchase Anonymous on May 07, 2020 I found this helpful (0)

Recommend to a Friend

Very capable but one small problem

4.0

It does everything I wanted but it has one small problem. After loading an arbitrary waveform from my computer I cannot save it local to the DG822 or an external flashdrive. So, every time I turn off the DG822 I need to re-load from my computer. It will save states of "ordinary" wave forms but not arbitrary ones.Rigol applications support has been very helpful but they could not offer a solution to this problem.

Doug Falco on Apr 27, 2020 I found this helpful (1)

Recommend to a Friend

Handy and great value

4.0

This little function generator has lots of features in a small easy to use package. Will I use arbitrary waveforms or modulated waveforms? not right now, but I didn't see the need for a dual tone generator until a DTMF project hit my to do list. It was great to have that capability without having to build a dedicated DTMF generator (just to test the decoder). The generator is easy to use and fairly intuitive. The touch screen works well. The rotary control is useful to quickly change values without having to enter them directly from the pop up menu. Entering numbers directly from the pop up is not difficult and I never had an issue with "fat fingers" causing an entry error. I found the 10 user presets to be very useful although I was disappointed to find a software bug with recall. It does not appear that it correctly recalls the DC offset so for example if you have a waveform you saved as unipolar, it is recalled as a bipolar waveform and you have to go into the menu to restore the correct setting (by selecting and then deselecting offset adjust). That is bad enough but it is more annoying that the user interface shows that it DID correctly recall the offset even though that was not applied ( a silent failure). I agree with the criticism about the number of digits displayed for each parameter. I had to disable the comma separator an replace it with a space to make it more readable. For most uses it is redundant to have a string of 6 zeros trailing the value that you actually set. Despite these shortcomings if you are looking for a basic function generator it is a great choice. It does a great job of basic functions and has much more capability on top of that.

david on Nov 26, 2019 I found this helpful (3)

Recommend to a Friend

Rigol DG822 Function Generator

4.0

I have not had this unit long enough to give it a far review. As a result I am only giving the DG822 a 4 star rating. So far what I have checked has met or exceeded specs. I like its features and the fact that it can be upgraded through software. Because it does not have a fan it is very quiet. It is good looking and the specs are great for the price of this generator. Once I have more experiance with the unit I have no reason to believe it will meet a 5 star rating.

Verified Purchase Larry W Millholland Sr on Feb 27, 2019 I found this helpful (0)

Recommend to a Friend

Good but suffers from Rigol-itus

3.0

Perfectly good little sig gen, however user interface could do with a little work. The buttons are there, the tough screen is there but there is no thought about how these are used together. Also, too many "0"s on the display - not sure I need 1e-6 of a Hz. Decimal vs 1000s separator is not clear. However, great bang for your buck.

Zapper on Feb 14, 2019 I found this helpful (3)