On 2019-07-17, Chris wrote:
>
> Next thing to try is the parallel port ack line pps and would be
I had some indication that the parallel port was faster.
> interesting to add a second pps signal to see how that affects the
> result. Interesting project for the summer anyway...
I suspect it will
On 07/13/19 16:38, Chris wrote:
On 06/20/19 23:39, Chris wrote:
Have a couple of surplus gps based ntp servers that have been
used for time sync in the lab for few years. They are on a UPS
with several hours backup and seems like a good idea to use
them to contribute to the ntp global network.
On 07/17/19 12:59, William Unruh wrote:
> I had some indication that the parallel port was faster.
That would make sense, since the rs232 devices tend to be slew
rate limited for noise rejection. Found some DS8921 driver / receiver
devices, originally designed for hard drive data path use. Delay
