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Discussion of precise time and frequency measurement

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NTP Clock suggestions?

Ralph Smith

Thu, May 30, 2013 7:07 PM

On Mon, May 27, 2013 10:56 am, Miguel Barbosa Gonçalves wrote:
[...]

On 27 May 2013 14:56, Bob Camp lists@rtty.us wrote:

[...]

Also correct, but a bit of a joke answer:

Raspberry PI driving your television set. Alternatively make the Pi
feed
control signals to a hacked normal clock.

Good joke :-) I imagine the electricity bill at the end of the month.

I would like to have a clock sync with my super precise stratum 1 servers
:-) what's the point in having them if I can see the time anywhere? :-)

Not quite what you are originally looking for, and not in the 'cheap'
vein, but I drive a Western Union/Self-Winding Clock Company clock with an
hourly sync pulse from my stratum 1 NTP server built from a Soekris
Net4501 driven by a Trimble Thunderbolt. It loses some of the 150ns
precision of the Soekris, but it is consistently within a second or two.
Also, it is a beautiful, historical item and fits well with the rest of my
office. Hearing the hourly thump of the synchronization solenoid makes me
happy.

Ralph

On Mon, May 27, 2013 10:56 am, Miguel Barbosa Gonçalves wrote: [...] > On 27 May 2013 14:56, Bob Camp <lists@rtty.us> wrote: [...] >> Also correct, but a bit of a joke answer: >> >> Raspberry PI driving your television set. Alternatively make the Pi >> feed >> control signals to a hacked normal clock. >> > > Good joke :-) I imagine the electricity bill at the end of the month. > > I would like to have a clock sync with my super precise stratum 1 servers > :-) what's the point in having them if I can see the time anywhere? :-) Not quite what you are originally looking for, and not in the 'cheap' vein, but I drive a Western Union/Self-Winding Clock Company clock with an hourly sync pulse from my stratum 1 NTP server built from a Soekris Net4501 driven by a Trimble Thunderbolt. It loses some of the 150ns precision of the Soekris, but it is consistently within a second or two. Also, it is a beautiful, historical item and fits well with the rest of my office. Hearing the hourly thump of the synchronization solenoid makes me happy. Ralph Ralph

Bill Woodcock

Sat, Jun 1, 2013 10:01 PM

On May 27, 2013, at 8:21 AM, Eric Williams wd6cmu@gmail.com wrote:

I'm happy with my OnTime dial clock.

I have been very happy with the ones I've gotten as well. That said, I have one that my wife managed to snag the Ethernet cord on, ripping the Ethernet jack off the motherboard. It's free to anyone who feels like a minor soldering project and wants to pick it up in Berkeley or send me a prepaid mailing label. Model number is ONTA12-BK. It's also missing the clear plastic front cover, since it was one I was going to build into a nicer frame for the house.

http://www.inovasolutions.com/network-clocks/products/analog-wall-clock.htm

                            -Bill

On May 27, 2013, at 8:21 AM, Eric Williams <wd6cmu@gmail.com> wrote: > I'm happy with my OnTime dial clock. I have been very happy with the ones I've gotten as well. That said, I have one that my wife managed to snag the Ethernet cord on, ripping the Ethernet jack off the motherboard. It's free to anyone who feels like a minor soldering project and wants to pick it up in Berkeley or send me a prepaid mailing label. Model number is ONTA12-BK. It's also missing the clear plastic front cover, since it was one I was going to build into a nicer frame for the house. http://www.inovasolutions.com/network-clocks/products/analog-wall-clock.htm -Bill