Tom Van Baak wrote: >> 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 > > Tom
The relative phase between 2 inputs to an interferometer (bridge) is important as is the relative phase between the LO and RF inputs of a mixer when measuring the internal noise by driving the LO and RF ports from the same source. Bruce _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
