[time-nuts] Any clock disturbances during the July11solareclipse?

[Ulrich Bangert]

Joe,

it is called Z38XX and is a windows tool which can be used to monitor the
whole Z38 family where its name comes from. I wrote it about a year ago. You
can download it free from

http://www.ulrich-bangert.de/html/downloads.html

It connects direcly to the Z3805's RS232 connector via a null-modem cable.
Murray Greenman, another member of time nuts, has written a nice manual for
it (included in the zip) so that you should not have big difficulties to get
it run.

Best regards
Ulrich Bangert  

> -----Ursprungliche Nachricht-----
> Von: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at febo.com] Im Auftrag von J. L. Trantham
> Gesendet: Dienstag, 13. Juli 2010 14:11
> An: 'Discussion of precise time and frequency measurement'
> Betreff: Re: [time-nuts] Any clock disturbances during the 
> July11solareclipse?
> 
> 
> Ulrich,
> 
> What software do you use to monitor your 3805A and how do you 
> connect to it?
> 
> Joe
> 
> -----Original Message-----
> From: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at febo.com] On Behalf Of Ulrich Bangert
> Sent: Tuesday, July 13, 2010 7:05 AM
> To: 'Discussion of precise time and frequency measurement'
> Subject: Re: [time-nuts] Any clock disturbances during the 
> July 11solareclipse?
> 
> 
> Bert,
> 
> lacking a 3805 manual my guess is that the 3805 EFC scale may 
> be considered the same as the 3801's one. Which would lead to 
> the conclusion that 1 EFC unit equals roughly 1.0E-12 of 
> relative frequency change of the LO. 
> 
> Symmetricon seems to have believed that the MTI 260 type 
> double oven OCXOs in the Z3805 are superiour to the 10811 
> double oven OCXOs used in the Z3801. However, even after 
> months of being in action, their drift is still very high. If 
> the above assumption is right what you see in the graph in 
> general is a drift of 2.0E-10 per day. I do not notice any 
> diurnal changes on the EFC due to day/night temperature 
> variations which are otherwise the biggest environmental 
> impact on oscillator frequency variations. So, despite of the 
> drift the MTI 260 seem to be very "predictable" beasts which 
> leads to holdover uncertainities that are mostly way below 1 
> microsecond for a 24 h interval.
> 
> Best regards
> Ulrich 
> 
> > -----Ursprungliche Nachricht-----
> > Von: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at febo.com] Im 
> > Auftrag von EWKehren at aol.com
> > Gesendet: Dienstag, 13. Juli 2010 12:21
> > An: time-nuts at febo.com
> > Betreff: Re: [time-nuts] Any clock disturbances during the
> > July 11 solareclipse?
> > 
> > 
> > Ulrich
> >  not having a 3805 can you please explain the scale.
> > Thank you
> >  Bert Kehren
> >  
> >  
> > In a message dated 7/13/2010 6:12:47 A.M. Eastern Daylight Time, 
> > df6jb at ulrich-bangert.de writes:
> > 
> > Antonio,
> > 
> > attached is a recording of my Z3805's EFC along  July 11. 
> Times are in 
> > UTC.
> > 
> > Best regards
> > Ulrich
> > 
> > >  -----Ursprungliche Nachricht-----
> > > Von: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at febo.com]
> > > Im Auftrag von  iovane at inwind.it
> > > Gesendet: Montag, 12. Juli 2010 22:19
> > > An:  time-nuts at febo.com
> > > Betreff: [time-nuts] Any clock disturbances during  the July
> > > 11 solar eclipse?
> > > 
> > > 
> > > 
> > > Hi  all,
> > > 
> > > did anybody out there observe any disturbances in his  
> clocks during
> > > (and/or before or after) the July 11 solar  eclipse?
> > > (due to other duties I've been prevented from doing any  tests)
> > > 
> > > Thanks,
> > > Antonio I8IOV
> > > 
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