Archived posting to the Leica Users Group, 1999/10/23
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Frank Filippone wrote: > > No quite right..... the signal comes from a radio beacon in Colorado.... it > does synch up to the clock that has an atomic clock attached to it......very > accurate, as the synchronization happens several times a day...... > The clock purportedly owned by Phil is a real Atomic clock......These things > do not know what time it is, but rather keep track of psed time. > Yes they are neat! > One of the advantages in living near NIST is that sometimes odd stuff like yes, atomic clocks do come up for sale! Last one was offered with a spare cesium timebase and was going for around $9K. Unfortunately, this price didn't include the gear needed to synch up to other atomic clocks, so accuracy would still be limited to how precisely you could hit the button at the tone! I use Exact Time software, which simply dials up NIST and synch the computer's clock. It has the advantage of being $9000 cheaper ;-) - -- Jeff Segawa Boulder, Colorado www.boulder.net/~4season