Update.. The unit has been running continuously since my last test. I collected approx 10 hours of data last night and the Adev is slightly better now. (Approx 1.5 thru 2.0 E-12 from 100 thru 400 seconds. At 2,000 seconds the Adev is approx 2.6E-12)
I also noticed that the unit is quite sensitive to mechanical shock. That being said I still believe I got my moneys worth for $40.00 I've also characterized the performance of FTS1050 I am using as a reference and I am fairly certain that the performance of the FTS1050 is well into the 13's at these time periods. Regards Mark Spencer --- On Fri, 2/3/12, Mark Spencer <mspencer12...@yahoo.ca> wrote: > From: Mark Spencer <mspencer12...@yahoo.ca> > Subject: 5680 performance very first impressions. > To: "Discussion of precise time and frequency measurement" > <time-nuts@febo.com> > Received: Friday, February 3, 2012, 8:04 PM > I've seen some comments and questions > regarding the performance of the 5680 Rb's. > > Yesterday I took delivery of two > 5680's. In case anyone is interested, I'm > seeing adev numbers in the 2 to 2.5 E-12 range from 80 thru > 200 seconds. The unit under test has been > running for approx one hour and I let it warm up for 30 > minutes before collecting data. > > The reference is an fts1050 and the data is being collected > with an hp 5370B. > > Not to bad for $40.00 IMHO. > > Regards Mark Spencer _______________________________________________ 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.