Corby, the FTS specs for their FTS1000A, FTS1200, FTS1002A and FTS1003A name short term stabilities for all four oscillators to be 1E-12 @ 1,10,100 s. I have always believed that these specs are kind of "conservative" ones so that your FTS1200 #2 fits them VERY well while FTS1200 #1 barely meets the specs.
Is there any idea on why these two oscillators behave that different? Best regards Ulrich Bangert > -----Ursprungliche Nachricht----- > Von: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Im Auftrag von corby d dawson > Gesendet: Dienstag, 26. August 2008 19:23 > An: time-nuts@febo.com > Betreff: Re: [time-nuts] 10811A versus 10811-60111 > > > Hi, > > I have had the occasion recently to measure the aging and > short term stability of a bunch of oscillators. > > Measurements were against an EFOS-2 Hydrogen Maser. > > I thought that the results between 10811A (-60109 variant) > and the 10811-60111 might be of interest to some. > > All oscillators had aging below 5X10-10/day. > > As you can see the short term stability of the -60111 > compares favorably with the 10811A. > > I'll be making some measurements on the -60158 variants and > some motorola units soon. > > Cheers! > Corby Dawson > > > QUARTZ 1 SEC. 10 SEC. 100 SEC. 1K SEC. (ALL HAD AGING BELOW > 5X10-5/DAY) > ------------------------------------------------ > 10811-60109 6.11-12 2.52-12 8.78-12 > 10811-60109 1.65-12 1.91-12 9.79-12 > 10811-60109 1.65-12 1.99-12 1.11-12 > 10811-60109 5.47-12 1.16-12 2.38-12 > 105 STYLE #T 7.60-13 2.01-12 3.94-12 > 10811-60111 1.27-12 2.65-12 1.93-12 > 105 STYLE #2 1.14-12 1.57-12 2.26-12 > 105 STYLE #3 1.31-12 1.58-12 2.68-12 > 10811-60111 3.04-12 5.54-12 1.47-12 > 105 STYLE #4 1.38-12 3.49-12 4.84-12 > 10811-60109 2.05-12 2.89-12 3.24-12 > 10811-60111 1.36-12 1.17-12 1.75-12 > 105 STYLE #5 1.14-12 2.09-12 2.51-12 > FTS 1200 #1 7.14-13 1.48-12 1.92-12 > 10543A 2.86-11 1.05-11 1.63-11 > FTS 1200 #2 2.99-13 4.30-13 7.69-13 8.65-13 > 10544A 4.08-12 2.95-12 7.79-12 > 10811-60111 1.24-12 2.10-12 2.09-12 > 10811-60111 1.48-12 1.59-12 1.54-12 > 10544A 1.89-12 2.99-12 5.01-12 > 105 style #6 2.88-12 2.88-12 7.37-12 > 105 style #7 9.69-13 2.30-12 3.49-12 > 10544-60511 8.20-13 2.11-12 2.51-12 > Piezo clone 2.57-12 2.23-12 2.17-12 > 5060A osconly 4.04-12 5.94-12 8.42-12 1.30-11 > 10811-60111 2.59-12 3.87-12 5.77-12 > > -60109spec 2.50-12 5.00-12 1.00-11 > -60111spec <1.00-12 * * > 10811Aspec 5.00-12 5.00-12 1.00-11 > *not specified > ____________________________________________________________ > Click to find information on your credit score and your > credit report. > http://thirdpartyoffers.juno.com/TGL2141/fc/Ioyw6i3m2PczsRdNFK t2GBl1YDtgaQ4QFPJm37HTYhIBtnzDllyvQl/ _______________________________________________ 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.