In message <7984e000-057c-4790-9d20-e4dac1f60...@rtty.us>, Bob Camp writes:
>Is there any performance data on how the card does with a 5370A and / or a >5370B compared to the original CPU on the exact same box? Put another way - > does the counter get better or worse with the new card? I realize that an >A will do some things with B firmware, that=92s not the question I'm asking. >I'm looking for A to A or B to B timing data. I have spent most of my time trying to answer exactly that question and I have not been able to devise any experiment that shows a difference in noiselevels with a credible statistical uncertainty. Interestingly, it is pretty evident from my experiments that the phase-noise of whatever EXT CLK source I use is the main cause of one-shot noise, so if anybody happens to have a *really* clean 10MHz and a 5370, it would be interesting to hear how low it can go. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ 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.