Hi I would guess that HP/Agilent/Symmetricom and Trimble made 100X more GPSDO's than the next five people in the business combined over the 1995 to 2005 period.
Bob On Dec 4, 2012, at 10:26 AM, paul swed <paulsw...@gmail.com> wrote: > Al > I like the truetime products. In general easy to understand and last a long > time. > But there never seemed to be that many. Sure they were used in broadcasting > and maybe power. But the others like the 3801 and tbolt were used in telco > and mobile apps so there were 10,000s turned out and thats why we get them > for cheap. I simply never see the truetime dc60 or gps units around. Though > I have my stock of dc468 sat clocks. :-) Working. I hacked a goes sat > replacement 3-4 years ago. > That said some of the older gps technology is a bit slippery on exactly how > good they are. > So for perhaps amateur purposes they are totally fine but when you start > comparing to a Tbolt or 3801 various behaviors apear. > Odetics GPStars as an example slip cycles on purpose. Its a mode you can > set and by default is how they are set. > For what they were intended for they are perfect. But at least 1 X10 poorer > then other devices. Its not at all broken. It was a general time piece for > radio networks. Give or take 500 ms. > Regards > Paul > WB8TSL > > > On Tue, Dec 4, 2012 at 9:58 AM, Al Wolfe <alw.k...@gmail.com> wrote: > >> Most of the choices I've seen here mention the Tbolts, 3801, 3805, etc, >> but I have never seen anyone mention the TrueTime XL-AK. It advertises 40 >> nsec 1 pps. Frequency as 1 x 10-12 per day. I have one and it seems to work >> well but have no way to test it against anything else yet. It has four each >> 10 MHz sine output that I have been using for house sync for HP3586, >> HP8924c, PTS160, etc. >> >> So how does the TrueTime compare to other GPSDO's? >> >> Al, K9SI >> >> ______________________________**_________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/** >> mailman/listinfo/time-nuts<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.