Re: [time-nuts] simple, cheap clock for the local LAN

2010-04-06 Thread Ralph Smith
On Mon, April 5, 2010 1:18 pm, Mark Sims wrote: Just use everybody's favorite GPSDO,  the Thunderbolt.  While it is being disciplined by GPS,  it is learning how the oscillator tends to age with time and drift with temperature.  If GPS goes away,  it will still discipline the oscillator in an

Re: [time-nuts] simple, cheap clock for the local LAN

2010-04-06 Thread Bob Camp
-nuts-boun...@febo.com] On Behalf Of Mark Sims Sent: Monday, April 05, 2010 1:18 PM To: time-nuts@febo.com Subject: [time-nuts] simple, cheap clock for the local LAN Just use everybody's favorite GPSDO,  the Thunderbolt.  While it is being disciplined by GPS,  it is learning how the oscillator tends

[time-nuts] simple, cheap clock for the local LAN

2010-04-05 Thread Eugen Leitl
Hi, I'm thinking about putting a local clock standard (nothing too fancy, quartz would probably do) for the local LAN so that I have more or less stable clocks when GPS is down for whatever reason. I have zero clue about time standards for the low end. Can anyone recommend anything affordable?

Re: [time-nuts] simple, cheap clock for the local LAN

2010-04-05 Thread Bob Camp
Hi You have two basic routes if you are trying to do what I *think* you are. 1) Set up an NTP server 2) Set up a 1588 grand master clock Both require client software on the other machines on your LAN. If you want the ultimate level of performance 1588 requires hardware time stamping in your

Re: [time-nuts] simple, cheap clock for the local LAN

2010-04-05 Thread Kasper Pedersen
On 04/05/2010 03:47 PM, Eugen Leitl wrote: Hi, I'm thinking about putting a local clock standard (nothing too fancy, quartz would probably do) for the local LAN so that I have more or less stable clocks when GPS is down for whatever reason. I have zero clue about time standards for the low