[sdiy] Oscilloscope Bandwidth

[Magnus Danielson]

On 09/02/2012 01:41 PM, Oscar Salas wrote:
> Hello,
>
> Until now I have used a 25Mhz Oscilloscope, and I have to say that I never
> felt the need of more bandwidth.
>
> However I have to buy a new oscilloscope, and I wonder if I will need, at
> some point, more bandwidth. Because DIY synthesizer, means to me, to
> learn; maybe there is something that I don't see now.
>
> The context in which I will use the oscilloscope, is design, build,
> trouble-shooting, etc.. analogue synthesizer modules, and maybe switching
> power supplies.
>
> I'm looking a 30Mhz oscilloscope.
>
> My question is:
> What is that I can see with more than 30Mhz? In which situation or
> application, I could need more than this bandwidth?

Well, next step up in bandwidth should be 100 MHz. It will help you to 
understand digital better, and also when more RF behaviour of analog and 
digital comes into play. 30 MHz after 25 MHz isn't worth the bother, 
it's about the same. Some 25 MHz scopes has 30 MHz.

Cheers,
Magnus