Electronics > Beginners
Oscillo-confusion MHz GSa/s wfm/s Mpts
FriedMule:
So the smartest would be to find out if Siglent or other makes 4ch version of the 350MHz?
tggzzz:
--- Quote from: FriedMule on January 01, 2019, 02:58:28 pm ---So the smartest would be to find out if Siglent or other makes 4ch version of the 350MHz?
--- End quote ---
You can always throw money at a "problem" :)
i suspect the smartest thing is to (1) define a project (2) define what needs to be tested and the classes of tools that can do that (3) buy a cheap example of each class.
You will make mistakes, learn a lot, and then be in a position to know what you really need.
FriedMule:
Great advice, I know that SMPS, linier supplies, amplifier, d/a convertere, bluetooth and that kind is what I am interested in rght now.
My thought by buying a good scope now, was that I then only have to buy a scope once in the next many years instead of a cheep now that I need to change in 2 years.
I was thinking of buying a great beginner scope now and if I ever need to, then buy a 500MHz-1GHz 4 channel analog scope later on to use when the normal scope is not enough.
james_s:
I think that's a reasonable approach. The thing is, there are lots of great beginner scopes now, it's really hard to go wrong as long as you avoid the very low cost toy scopes like those pocket models you can get for <$100. Any one of the popular entry level DSOs mentioned here will likely do what you need so just pick one and then focus on learning to make the most of it, remembering that for decades engineers designed incredibly sophisticated machines using scopes less capable than the $350 DSOs you can get now.
rstofer:
There is still the possibility that for high bandwidth you don't need the features of a DSO. They're handy but not really necessary.
For things related to microcontrollers and FPGAs (and certainly audio and SMPSs), the external speeds are usually 50 MHz or less. SPI, which I might want to decode, is probably running at 20 MHz or less. The DS1054Z (unlocked to 100 MHz) handles that well. I get all the bells and whistles for lower frequencies for a really low price.
Then for the faster stuff, I still have the analog scope. I could also buy a used 500 MHz scope for something on the order of $800. But only when I need it. Of course, I already have a 350 MHz scope but if I didn't, that's an approach I would take.
Buy the lower bandwidth DSO for the bells and whistles and buy a high bandwidth analog scope later, if ever.
It seems like the extra cost of a higher performing scope in early times would take away money from everything else. Bench meters, handheld meters, function generator, lab power supply, etc. There's only so much money to go around and each of those tools needs to be represented on the bench.
Or maybe money isn't the issue. That's not my situation!
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