Hi folks,The leap second was of course broadcast by the German DCF-77 station, and this went perfectly, as expected. At 1AM (CEST) the 'Leap Second Announcement' bit was set to high in the 19th second of the datagram. The leapsecond itself was broadcast by not modulating[1] the 59th second (which is normally silent to mark the end of the minute), and instead the carrier was silent on the 60th second. And in the 19th second of the new minute, the leap second announcement was gone again.
Recorded all this on a DCF-receiver I designed and built over a decade ago, and still works great. Might even get around to putting it in an enclosure before the next leap-second ;-)
Small movie: http://epboven.home.xs4all.nl/ls-2012.html Regards, Paul Boven - 73 de PEaNUT[1] DCF-77 seconds are transmitted by reducing the output power of the transmitter for 1/10th (a zero) or 2/10th (a one). There is also a phase-modulation on the signal which my receiver doesn't use.
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