[time-nuts] Serial port server .. any interest in a write up on using ?

[Chris Albertson]

On Wed, May 23, 2012 at 2:02 PM, Bob Camp <lists at rtty.us> wrote:
> Hi
>
> What ever degradation the serial stream sees on the LAN, the resulting NTP
> output will see once it's on the same LAN. It's unlikely you will see more
> than a 2:1 net degradation no matter what is going on. The flywheel in the
> NTP algorithm will likely help you in this case to actually improve things a
> bit.

Have you actually tried this and measured?  2:1 is very optimistic.
Typically it is 1000:1 or worse

But you are right that it may not matter.  For most uses if the
computer's clock is correct at the 0.1 second level they are happy.
but this is a "time nut" mailing list and some of us like to get NTP
to run at the uSecond level.  Useless as that might be.



Chris Albertson
Redondo Beach, California