Re: [time-nuts] sync computer clock ticks

2008-01-03 Thread Bruce Griffiths
Michael Di Domenico wrote: > This has probably been asked many times before, but i am unable to > find any documentation to point me in the right direction. And yes i > am a newbie with clocks... > > I'd like to synchronize the clock ticks on 16 different computers > running linux, down to the 1us

Re: [time-nuts] sync computer clock ticks

2008-01-03 Thread David I. Emery
On Thu, Jan 03, 2008 at 10:14:01PM -0500, Michael Di Domenico wrote: > I'd like to synchronize the clock ticks on 16 different computers > running linux, down to the 1usec area. Is this even possible from a > computer hardware standpoint? > > Ideally, I'd like to use the serial port on each of th

[time-nuts] sync computer clock ticks

2008-01-03 Thread Michael Di Domenico
This has probably been asked many times before, but i am unable to find any documentation to point me in the right direction. And yes i am a newbie with clocks... I'd like to synchronize the clock ticks on 16 different computers running linux, down to the 1usec area. Is this even possible from a

Re: [time-nuts] Is this archive searchable?

2008-01-03 Thread Chris Kuethe
On Jan 3, 2008 5:17 PM, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Hi all, > I've just joined this list today, and have found that the archive is full of > interesting stuff. > So I would ask, is there any possibility to search the > archive by keywords? google works... site:www.febo.com/pip

[time-nuts] Is this archive searchable?

2008-01-03 Thread [EMAIL PROTECTED]
Hi all, I've just joined this list today, and have found that the archive is full of interesting stuff. So I would ask, is there any possibility to search the archive by keywords? Thanks in advance. Antonio I8IOV ___ time-nuts mailing list -- time-nuts

[time-nuts] Some regenerative-divider test results

2008-01-03 Thread John Miles
Tom and I spent some time over at his place a couple of days ago, looking at a pair of regenerative dividers on his phase-noise analyzer. Exciting details here: http://www.ke5fx.com/regen.htm As the page says, I really appreciate the help from Bruce, Enrico, and Magnus on these. There is still

Re: [time-nuts] xtal oscillator phase noise

2008-01-03 Thread Bruce Griffiths
Henk If the real part of the impedance (at resonance) at the base of the oscillator transistor is high this will significantly increase the real part of the impedance at the emitter of the oscillator transistor seen by the crystal thus decreasing its loaded Q. The real part of the impedance of the

[time-nuts] Datum Efratom LPRO Rubidium Lamp removal

2008-01-03 Thread [EMAIL PROTECTED]
Hi all, does anybody out there have any experience in replacing the lamp on an LPRO rubidium oscillator? I have two LPROs, one working and another which reads "lamp volt" = zero. I feel it is not a matter of lamp, as the lamp housing doesn't heat (it should). I would try swapping the lamps bet