[time-nuts] AC Connector On HP 5061B

[Tom Van Baak]

> On the DA you will want to ensure all your output cables are of
> identical length as this will ensure that all signals are in phase at
> the timebase input(s).   It's a small thing really a fraction of a
> picosecond but it's there and easily compensated for.

When does the phase of the timebase input mean anything?
Most test equipment is happy to have a stable external frequency
input; the phase is immaterial, no? Can someone give me an
example when relative phase among various random pieces of
test equipment is important?

/tvb