Re: [time-nuts] Different Thunderbolt versions

saidj...@aol.com wrote: > Hi Bruce, > > seems that would be in line with extending the 10s plot down to 1s in a > linear fashion. > > Not that great. Tom's GPSDO measurements show some GPSDO's go down to ~E-013 > at 1s. > > bye, > Said > > > In a message dated 2/25/2009 12:33:22 Pacif

Re: [time-nuts] Different Thunderbolt versions

Hi Bruce, seems that would be in line with extending the 10s plot down to 1s in a linear fashion. Not that great. Tom's GPSDO measurements show some GPSDO's go down to ~E-013 at 1s. bye, Said In a message dated 2/25/2009 12:33:22 Pacific Standard Time, bruce.griffi...@xtra.co.nz wri

Re: [time-nuts] Tektronix 603/604, looking for any documentation

Thanks to everyone in the list. I purchased the operators & service manual from www.ArtekMedia.com and after some cleaning and minor adjustments, it is performing as it was 35 years ago. Hats off to the designers of the unit, it is incredible how nice it performs with the duchtronics clock. No

Re: [time-nuts] Oscillator Article

TVB's version is better. PDF for the win. On Wed, Feb 25, 2009 at 1:14 PM, Had wrote: > > Yup, that is it. I should have put the title in the original post. > > Had > > > At 10:16 AM 2/25/2009, you wrote: > >Had, correct me if I'm wrong, but I think the article you are talking > about > >is thi

[time-nuts] Oscillator Article

Dallas Semi has a cute little programmable dual oscillator chip, the DS1077. 8KHz to 133 Mhz in a SOIC-8 package. Available from Sparkfun for 3 bucks a pop: http://www.sparkfun.com/commerce/product_info.php?products_id=9089 Definitely not Nut grade, but useful... too bad it doesn't have an

Re: [time-nuts] Different Thunderbolt versions

Said Specified Allan deviation is 2E-11 @1s. Bruce saidj...@aol.com wrote: > Hi Ulrich, > > notice that that plot also conveniently cuts-off the ADEV below 10s, where > we can see it go up substantially at around 10s... > > Guess they did not want anyone seeing their <10Hz performance; th

Re: [time-nuts] Different Thunderbolt versions

Ulrich Another clue as to the likely disciplining loop time constant can be found on page 6 of the FS725 manual: http://www.thinksrs.com/downloads/PDFs/Manuals/FS725m.pdf Where it states that the available range for the loop time constant is 480 sec to 64800 sec Bruce Ulrich Bangert wrote: > Bru

Re: [time-nuts] Oscillator Article

Yup, that is it. I should have put the title in the original post. Had At 10:16 AM 2/25/2009, you wrote: >Had, correct me if I'm wrong, but I think the article you are talking about >is this one: > >http://www.edn.com/article/CA6636507.html?text=oscillators > >I don't have my copy sitting aroun

Re: [time-nuts] Different Thunderbolt versions

Hi Ulrich, notice that that plot also conveniently cuts-off the ADEV below 10s, where we can see it go up substantially at around 10s... Guess they did not want anyone seeing their <10Hz performance; this is called good specmanship. bye, Said In a message dated 2/25/2009 00:25:27 Paci

Re: [time-nuts] Oscillator Article

Good stuff coming down the pipe, I looked at the Mems/Si technology and the phase noise, thermal stability, and jitter specs are orders of magnitude higher than what we would like to see here on Time Nuts. I think Quartz is going to be the king of the hill for some time to come due to it'

Re: [time-nuts] Oscillator Article

http://www.edn.com/contents/images/6636507.pdf ___ 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.

Re: [time-nuts] Oscillator Article

Had, correct me if I'm wrong, but I think the article you are talking about is this one: http://www.edn.com/article/CA6636507.html?text=oscillators I don't have my copy sitting around but found this article with the same data and subject on the website. -Bob On Wed, Feb 25, 2009 at 10:57 AM, Ha

[time-nuts] Oscillator Article

Nice article on oscillators in the Feb. 19th issue of EDN Had ___ 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.

Re: [time-nuts] Tektronix 603/604, looking for any documentation

At 10:48 PM -0800 2/24/09, German Alvarez wrote: >To use with my Dutchtronix AVR Oscilloscope Clock I just got a Tektronix >604 X&Y&Z display. It is working fine but I would like to get any type >of documentation, in particular it has a DB-25 on the back that I want >to explore. > >Thanks in advanc

Re: [time-nuts] Different Thunderbolt versions

Bruce, > If you look at the Allan deviation plot on the PRS10 page: > http://www.thinksrs.com/products/PRS10.htm > > This indicates that the likely disciplining loop time > constant will be several thousand seconds. It should be noted that this plot shows a VERY PESSIMISTIC (almost two decades