| Electronics > Beginners |
| Oscillo-confusion MHz GSa/s wfm/s Mpts |
| << < (4/13) > >> |
| basinstreetdesign:
--- Quote from: FriedMule on January 01, 2019, 01:31:23 am ---So would you buy a 4ch 200MHz 1GSa/s or a 2ch 350MHz 2GSa/s for "whatever use"? --- End quote --- I've seen this question before and my answer is still the same. Given a choice between one scope with an extra two channels for extra $200 and a scope with extra 100 MHz bandwidth for only $100 more I would take the extra two channels in a heartbeat. There are fairly few situations where an extra 100 MHZ would make much difference but many times an extra two channels can make a testing situation MUCH easier. The extra channels will give you MUCH more information on a situation than being able to see a pulse or an edge with a bit more precision. |
| FriedMule:
So it is not so easy after all:-) I am in no way doubting any of your answers, just trying to understand. basinstreetdesign the difference is 150MHz and 1GSa/s more and about twice the money. tggzzz how often and to what would you say that faster is better then twice the channels and where not? |
| james_s:
It's easy to get paralyzed with indecision, but you can think of it another way. These are relatively low cost instruments being discussed here, it's not exactly impulse buy territory for most people but it isn't a major life decision either. Some day down the road you can upgrade to a fancier scope if you end up needing it. Take good care of whichever one you buy and it will likely hold a good portion of its value, if you decide you don't like it, you can sell it to someone else. |
| tautech:
--- Quote from: FriedMule on January 01, 2019, 02:06:59 am ---So it is not so easy after all:-) --- End quote --- It’s not hard either. For hobbyist use a SDS1204X-E is an excellent choice, sufficient memory depth, sampling, WF/s, all the I/O’s you might need and priced well enough to allow change left to get things like a dedicated AWG. You might even get the cheaper 1104X-E and if needing additional BW apply one of the cracks to it to soup it up to the the 200MHz model. The SDS2352X-E will be a better GP scope but primarily for the higher BW it offers......it’s not so much the scope but knowing how to drive it. ;) My 2c, get the SDS1104X-E. |
| tggzzz:
--- Quote from: FriedMule on January 01, 2019, 02:06:59 am ---So it is not so easy after all:-) I am in no way doubting any of your answers, just trying to understand. tggzzz how often and to what would you say that faster is better then twice the channels and where not? --- End quote --- To simplify, either 0% or 100%, depending on what you are trying to achieve. There's a hint there :) Once you have defined what you are trying to achieve, you can match different tool's characteristics to the job at hand. I designed and built my first computer in the mid 70s (6800 + 128bytes RAM + TTL) mostly using switches, LEDs, and a multimeter. One one occasion I used a scope for 10 minutes, to check the critical clock waveform. In that 10 minutes I learned that probing technique is critical and that 6" ground leads are a problem :) More recently for digital circuits I use a logic analyser, printf() statements and the debugger with an IDE. But only after I have checked that all the analogue signals will be interpreted correctly as digital signal (i.e. setup/hold, clean transition, voltages). The key is to plan implementation so that each stage is known to be correct before the next stage is implemented. Look at my .sig, and replace "gliding" and "span" with "electronics" and "scopes" :) |
| Navigation |
| Message Index |
| Next page |
| Previous page |