Rick, I think this was the comment I was referring to:
https://lists.febo.com/empathy/thread/SAGAOXBTK47QABBXZIUWFZ65TS76QZTA?hash=F5ONUQ552CLJ4G67XSYGV7JYBIOHMSPA#F5ONUQ552CLJ4G67XSYGV7JYBIOHMSPA Which says: "... the phase noise is not as good as a 10811 due to broadband noise in the automatic frequency control circuit. By the time I discovered this, it was too late to try to fix it." And after nine years I obviously somewhat mis- remembered it. But I still wonder whether you had any ideas to improve it. Cheers! --Stu On Sat, Dec 25, 2021, 22:56 Richard (Rick) Karlquist <[email protected]> wrote: > I'm sure I said that ... a long time ago. I can't remember now what the > fix was, but I am fairly sure it would only apply to phase noise at > more than 1 kHz offset. If anyone can jog my memory about it I might > be able to remember the details. > > Rick N6RK > > On 12/25/2021 2:09 PM, Stewart Cobb wrote: > > Rick Karlquist mentioned some time ago that the phase noise of the E1938A > > could have been improved by a simple change, but the production managers > > were unwilling to apply that change because there was no customer demand > > for it. > > > > What was that change, and is it feasible for a skilled hobbyist to make > > that change on an individual existing unit or two? > > > > Cheers! > > --Stu > > _______________________________________________ > > time-nuts mailing list -- [email protected] -- To unsubscribe > send an email to [email protected] > > To unsubscribe, go to and follow the instructions there. > > > _______________________________________________ time-nuts mailing list -- [email protected] -- To unsubscribe send an email to [email protected] To unsubscribe, go to and follow the instructions there.
