I agree, Bill. I do have some elk in the front yard, but they are no help... Don L Bill Dailey > No MIT here. Sadly. > > Sent from mobile > > On Dec 4, 2012, at 8:49 AM, paul swed <paulsw...@gmail.com> wrote: > >> Basements the key. So for me bigger is better. Heck if its a rack >> thats ok. >> It gets interesting in what types of components you can use if you are >> willing to go larger. >> Great point on the laser and optics. Funny thing is for small change >> you >> can actually get used optics bench components at least at the last MIT >> flea >> I ran across the items. They were snapped up by the way. >> From what I have seen of time-nuttery and Hydrogen masers I am >> actually not >> all that sure its beyond this group. >> Regards >> Paul >> >> On Tue, Dec 4, 2012 at 9:34 AM, Bob Camp <li...@rtty.us> wrote: >> >>> Hi >>> >>> Indeed, you likely won't get USNO grade with a shoe box sized part. >>> You can >>> get one to work and do quite good ADEV. No, I haven't done it, I'm >>> just >>> going on what I've been told. The main point being that for a >>> basement >>> project - smaller is probably lower cost. >>> >>> Bob >>> >>> -----Original Message----- >>> From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] >>> On >>> Behalf Of Poul-Henning Kamp >>> Sent: Tuesday, December 04, 2012 9:19 AM >>> To: Discussion of precise time and frequency measurement; Bill Dailey >>> Subject: Re: [time-nuts] PTTI 2012, part 2 >>> >>> -------- >>> In message >>> <CAMPhiorJihW9z6-q0+Qfd+GPLjs6e8_ovWrDxQoxV=92hgj...@mail.gmail.com> >>> , Bill Dailey writes: >>> >>>> If you look at the papers on portable rubidium fountains >>>> they are significantly bigger than a shoebox (65 cm). >>> >>> Diameter is controlled by dispersion of the launched atoms (=recovery >>> rate) >>> and the layers of shielding. >>> >>> 65cm looked like close to a minimum for USNO grade, amateurs could >>> probably >>> make do with less shielding. >>> >>> -- >>> 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. >>> >>> >>> >>> _______________________________________________ >>> 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. >> _______________________________________________ >> 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. > > _______________________________________________ > 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. >
-- "Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind." De Erroribus Medicorum, R. Bacon, 13th century. "If you don't know what it is, don't poke it." Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com _______________________________________________ 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.
