In message: <[EMAIL PROTECTED]> Steve Allen <[EMAIL PROTECTED]> writes: : On Thu 2006-01-19T18:30:02 +0000, Markus Kuhn hath writ: : > GPS sends out announcements within days after IERS does, which is : > excellent service.
IERS announced the leap second on July 4th, about 6 weeks before it was encoded into GPS stream. This didn't happen until mid to late August. The Canadian time service was announcing the leap second months before July (I have a friend who has been writing software to decode the world's time broadcast stations, and he was amused by this). : Yes, and no, for some notes from the NTP newsgroup imply that the : setting of the GPS impending leap bit caused some GPS units to insert : leap seconds every day at 0h UT. We noted that the GPS system started to advertise leap seconds in the middle of August. This causes the HP SmartClocks to hickup at the alternate leap second time... : Furthermore, in : http://www.uscg.mil/hq/g-m/moa/docs/Saab505.pdf : we see that the Saab AIS units introduced the leap second immediately : and needed a firmware update to fix the condition. Cute. Older Motorola Oncore receivers had a firmware bug that caused a three second blimp in their time code when it had been 1024 weeks since the last leap second as well. Warner