Ulrich -
This may be a naive question, but, how can you achieve results that are so close to, and sometimes at further out are below kT? Thanks & 73 - Mike Mike B. Feher, EOZ Inc. 89 Arnold Blvd. Howell, NJ, 07731 732-886-5960 office 908-902-3831 cell From: ka2...@aol.com [mailto:ka2...@aol.com] Sent: Thursday, August 11, 2016 7:03 AM To: time-nuts@febo.com; t...@leapsecond.com Cc: enrico.rubi...@gmail.com; mfe...@eozinc.com Subject: Re: [time-nuts] State of the art of crystal oscillator measurements Good morning, the difference between the two phase noise FWSP systems is the lower noise internal 10 MHz reference crystal oscillator (optimized ) as well as also some of the internal FSWP circuits custom optimized . The output power was 17 dBm, but we also have build one oscillator with 12 dBm output power and noise similar values. This is part of a PhD project which I supervise . For values so close to the carrier you need a very low noise power supply and a well shielded Faraday cage . The measurement with ca 100 correlation took about 2 hours. Also the heating circuit needs to be low noise and well decoupled . The 100 Hz value of the better analyzer seems suspicious , It needs to be further investigated. All very exciting and time consuming . Ulrich In a message dated 8/10/2016 11:02:25 P.M. Eastern Daylight Time, mfe...@eozinc.com writes: These seem extremely fantastic results for a 100 MHz oscillator. I am curious what the Po of the oscillators are Regards - Mike Mike B. Feher, EOZ Inc. 89 Arnold Blvd. Howell, NJ, 07731 732-886-5960 office 908-902-3831 cell -----Original Message----- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Tom Van Baak Sent: Wednesday, August 10, 2016 9:19 PM To: Discussion of precise time and frequency measurement Cc: enrico.rubi...@gmail.com Subject: Re: [time-nuts] State of the art of crystal oscillator measurements Attached is a GIF of the table Ulrich wants to share. Note time-nuts is a plain text mailing list so any rtf or html formatting is discarded. On the bright side, PDF or data or image attachments are allowed with no problem. /tvb _______________________________________________ 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.