[ntp:questions] GPS_NEMA, but high offset and jitter?

David J Taylor david-taylor at blueyonder.co.uk.invalid
Fri Feb 26 08:35:09 UTC 2010


> Is there any other way to watch the signal to see if it's reaching the 
> serial port correctly?

I would use my 'scope, but even an analogue voltmeter might work - see a 
regular flick of the needle.  I built the equivalent of a simple break-out 
box into my two connections, one in the RS232 DB-9 plug itself:

  http://www.satsignal.eu/ntp/FreeBSD-GPS-PPS.htm#connect

Cheers,
David 




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