[ntp:questions] Re: Question to NTP developers

Eugen COCA ecoca at eed.usv.ro
Thu Aug 24 06:50:49 UTC 2006


David J Taylor wrote:

> .. another long shot - but do you convert the GPS signals to true RS-232
> levels, or simply use them as-is from the GPS18?
>


David,

this could be a possible problem as the GPS receiver deliver signals
from 0 to 5V and not true TIA-232 levels (-9V to +9V). I thought at
this situation several months ago but I'm not sure if such a converter
will not add too much jitter to the PPS signal (as it must be supplied
with a separate voltage source).




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