Hi all, I measured an Ettus OctoClock with a 3120A phase-noise probe (for the 10MHz) and the 1PPS channel skew with a 53230A TIC.
The results are decent but not stellar: http://www.anderswallin.net/2016/09/ettus-octoclock-distribution-amplifier/ In particular the AM noise on the 10MHz looks high. Any thoughts/comments? For 1PPS a 200ps skew between fastest and slowest channel is not the end of the world, but I would be interested in the cause. To produce 200ps skew both a 4cm trace-length-difference and/or 200 mV of DC-offset (for a 1V/ns slewrate signal) seem large? Anders (will build better distribution amp as soon as I getroundtoit..) _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.