On 07/07/2018 18:10, William Unruh wrote:
On 2018-07-07, David Taylor <david-tay...@blueyonder.co.uk.invalid> wrote:
[]
On one PC I'm using an add-in PCIe card, a TTL-RS232 converter (tried
without but the signal levels were too low) and a Chinese module sitting

That is really unusual. Most serial cards now will happily use TTL levels.
The converter may (or may not) introduce delays to the pps signal. If they are
sub usec it probably does not matter.
Yes, Bill, that surprised me as well! Adding the level converter (a cheap Chinese board) solved the issue (no data seen on the serial port). As this was for a Windows PC, a sub-microsecond delay didn't matter.

--
Cheers,
David
Web: http://www.satsignal.eu

_______________________________________________
questions mailing list
questions@lists.ntp.org
http://lists.ntp.org/listinfo/questions

Reply via email to