[time-nuts] Long period variation of GPS PPS timing?

Paul Nicholson vlf0308 at abelian.org
Wed Jul 14 07:15:55 UTC 2010


Hal Murray wrote:
 > From the TBolt PPS pin:
 >  resistor (current limiter)
 >  diode
 >  cap to ground
 >  resistor across cap (decay)

A passive solution along those lines would be ideal, will try
that before anything more elaborate.   Doesn't matter if the
resulting pulse isn't symmetric, I just need it to have stable
shape and timing, and to span several soundcard samples, maybe
10 or 20.  If I can stretch the decay to 100uS, that will do.

The T'Bolt seems to have a setup command for everything - except
PPS width!

Thanks,
--
Paul Nicholson
http://abelian.org
--




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