[LEAPSECS] My FOSDEM slides

Tom Van Baak tvb at LeapSecond.com
Tue Mar 3 22:06:58 EST 2015


> GPS can deal with it, even IEEE 1344 and C37.118 time codes can, but I'm 
> not sure if WWVB can. Anyway, I know the German DCF-77 transmitter has 
> no flag defined to announce a negative leap second, so there would be 
> major problems if one had to be inserted.

Both WWVB and DCF-77 have a single leap second warning bit. With WWVB you look at the sign of DUT1 to know if the leap is insert or delete. So WWVB is fine.

DCF-77 has no DUT1 or leap gender bit so, yes, there will be trouble. I'm sure PTB will figure something out if it ever comes to that.

/tvb


More information about the LEAPSECS mailing list