"John Miles" <[email protected]> wrote: > It's an HP 3048A. I have long held vague ambitions toward > replacing it with a homebrew digital system but it hasn't happened > yet.
> john, KE5FX Thanks, John. You have a fortune in first-class equipment! From your previous post: >> But the output phase noise, at least, is well within specs (-88 >> dBc/Hz at 1 Hz in short time constant mode, spec=-82 dBc/Hz, and >> 105 in LTC mode, which is actually better than the -96 dBc/Hz >> spec for the option-004 tube.) The -105 dBc/Hz at 1Hz looks pretty good. Is that measured with the internal reference in the 11848A? Or can it even get down that low at 1Hz? If not, I see from your web site you have a Wenzel 80MHz ULN. Did you use that for the reference? If so, did you ever find out what was causing the ~10dB excess noise in the regenerative divider on your web page at http://www.thegleam.com/ke5fx/regen.htm Lots of good info on your site. Thanks, Mike _______________________________________________ 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.
