[time-nuts] Big Picture View

[John Ackermann N8UR]

Keith E. Brandt, M.D. wrote:
> John,
> That's a good start towards answering my question. Given my set-up of 
> GPS referenced NTP server, how would I integrate a frequency 
> reference into the system?

You'd replace the crystal oscillator on the motherboard with a more 
stable reference.  The TAPR Clock-Block 
(http://www.tapr.org/kits_clock-block.html) is a synthesizer designed 
for that purpose; it can take a 5 or 10 or whatever MHz input signal and 
convert it to the clock frequency needed by the motherboard.

An example of doing this is at http://www.febo.com/pages/soekris where I 
convert a single board computer into a very precise timekeeper using a 
Clock-Block and some other hardware hacks.

John