Begging your pardon, but don't TDR's examine the transient response of
a system, rather the steady state response?

ac6xg


You're correct, of course, Jim, but I was intuitively assuming we'd not be continuing the use of the TDR with
the sine wave signal. I'm sure my intuition wasn't communiated, sorry.

Walt

Of course, real signals aren't just a single pulse but any CW signal can
be represented as a series of pulses. One VNA I used years ago (Wiltron)
allowed you to analyse a network by driving it with pulses ,
capturing the pulse or transient response and then doing a transform to
go from the time domain to the frequency domain, thus producing the
steady-state response. Very handy for analysing antennae in a confined
space. The time window was set to exclude reflections from walls etc. so
one didn't need an anechoic chamber.
Alan