So, this is my first post here but I've been watching Dave now for a couple of years. So, hi everyone.
I've been using the DSO138 just to learn some basics. It's pretty much a toy at best but probably more like trash can material. I'm learning from it though and it's cheap but now I'm ready to buy an actual scope and I just wanted to check a couple of things.
The UTD2052CEX [1] is sold locally for a good price by a reputable store and I think I like the interface and I'm pretty sure the specs are okay but I wanted to double check here with some people who know what they're doing.
Mostly my projects consist of power, "precision" analog (things like a millivolt meter, no voltnutty kinda stuff) and eventually a 6502 homebrew computer. I think the scope should be okay for checking ripple of power supplies, line and load regulation and probably won't be much worse for the analog than anything else (I don't expect much from an oscilloscope as far as precision goes.) What I'm less sure about is whether it'll be helpful with some of the digital stuff I want to do.
I'd like to eventually build my own bare bones memory controller for ancient asynchronous DRAM and that means pulses in the tens and hundreds of nanoseconds. It's pretty simple circuit that I have in mind, so I'm guessing I don't need a logical analyzer yet, just one or two channels on a scope. The UTD2052CEX [1] says it does 2ns/div to 50s/div but I'm not really sure how to take those numbers. Is it likely true that you can see things clearly on the higher resolution range or are these beefed up absolute best case numbers? If the latter is the case, what should I expect to be able to get down to?
Thanks a lot!
[1].
http://www.uni-t.cz/en/p/oscilloscope-uni-t-utd2052cex