I just got a DSO Quad…
I expected the digital bandwidth to be higher than the analogue bandwidth but it seems to be the other way around - the analogue inputs can show signals that don’t even register on the digital inputs. Once I go above 1Mhz (approx) the digital signals totally disappear.
eg. Here’s a 2MHz square wave on A and C.
On A there’s a ringy square wave (I have no problem with that)
On C there’s … nothing at all!
Is it a problem with my quad? What’s a realistic digital bandwidth?