[time-nuts] Set time on Solaris computer from HP 58503A

[David J Taylor]

Of *course* you can sync to better than a millisecond on the LAN.  There's
not a machine worldwide at my employer more than 600 micros off from each
other, and the machines at my house are within 50.

You wanna start talking the sync-e+1588 test I'm doing?  We're speaking in
nanos then.

My LTE Lite is the only USB pps I have presently - and it pulls my time
well over 200 milliseconds off reference.  That's a massive change from the
1 or less I am from the internet and the 50 micros from the other boxes.

NS
=============================================

Neil,

Have you compared the PPS direct output of the LTE Lite for offset from true 
UTC?

On serial-over-USB: my own tests with a different box, using PPS on the 
serial port DCD line over USB were much better than that, reducing jitter 
from 110-140 microseconds with a LAN connection to a stratum-1 source to 45 
microseconds with a PPS/DCD over USB connection.

  http://www.satsignal.eu/ntp/NTP-on-Windows-serial-port.html#usb

I may have been lucky with the particular serial-USB converter, though.

Cheers,
David
-- 
SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-taylor at blueyonder.co.uk