On July 14, 2021 at 23:55, Ernie Gilman said...
Fred,
The buttons labeled "NOT USED" are confusing.
Then there's the fact that the two channels are not labeled the same as one another. Both channels of the thing that OP describes will do the same thing....
Yeah, I admit it, I'm lazy: could you save me from having to read the manual and just suggest what those anomalies are all about?
It would only be confusing to someone who didn't read the manual or think about how this could be used. Why do you post this kind of stuff? Read the damned manual!