> 2) along with the gps time signal, information is broadcast to relate > gps time to utc. whenever there's a step change in these corrections > (such as on midnight 31/12/2008), how does the unit react? 2.1) in > particular, how quickly does the time code reflect the change, and is > the 1pps affected in any way?
Check the data sheet on the unit. It probably has a section describing the leap second stuff. They happen infrequently enough that you can usually get the info by other means. I'm sure the next one will be announced here. GPS works on GPS time. The satellites tell you the offset to UTC. I expect that offset kicks over at the magic time, but I wouldn't be surprised by bugs. Somebody may have data from watching the last time we had one. (I was watching a NMEA unit. It inserted the leap second at midnight GPS time rather than midnight UTC.) The PPS is tied to GPS time. I don't expect any quirks from leap seconds. -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
