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Old January 20th 08, 11:34 AM posted to rec.radio.shortwave
Geoffrey S. Mendelson Geoffrey S. Mendelson is offline
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Default NIST Considers East Coast WWVB Broadcast

John Kasupski wrote:

Joke's on them. GPS time is implemented by the atomic clocks in the
GPS ground control stations and the GPS satellites themselves. Since
it is not updated with leap seconds, GPS is currently ahead of UTC by
14 seconds.


That's a software bug. For location purposes, a leap second is a
very bad thing when it happens. So it's better for GPS to ignore
it, and if you really need accurate time, compenstate for the extra
seconds in the routine that takes the GPS data and converts it to
whatever you are using it for.

It would not take much, a simple calculation of missed leap seconds
subtracted from the current GPS time would do it perfectly.

I wonder if the NTP (network time protocol) GPS drivers do it
already?

Geoff.

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