[ntp:questions] Leap second quirk

Harald Brinkmann hb7267 at gmx.de
Fri Oct 31 22:44:27 UTC 2008

Hal Murray wrote:

> Two of my systems injected leap seconds at the end of Aug and Sep.
> A couple of others didn't.
> I thought I saw some discussion of this, but I can't find it.

In August what seems to be a bug in SIRF chipset GPS receivers was discussed
here. Look for "UTC Time from NMEA receiver one second behind DCF". This
link http://www.megapathdsl.net/~hmurray/ntp/leap-gps3.gif shows the
intermittent one second lag. It seems ntp is innocent since the wrong data
is already in the NMEA data sent by the GPS receiver.

Hope this helps.


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