Sometimes you can never get enough bandwidth.
> We are currently looking at a scope
>with a 1.5GHz bandwidth (8GHz sampling rate).
What is the bandwidth when probing two signals? Three signals?
Probing one signal at a time covers about 75% of your SI needs, but you may
also need to check timing between signals.
Consider your fastest signal risetimes, not frequencies.
What usable bandwidth do you get when capturing a long trace; what memory
depth does it have? If you use a slower sweep rate, and blow up a small
portion of it to full-screen, you may not get the full sampling rate.
How about the processor speed of your NEXT product, and the one after that?
You may want to be able to display its 3rd, 5th, or higher harmonics.
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