[time-nuts] DCF77 signal change
Christian Vogel
vogelchr at vogel.cx
Wed Mar 28 13:56:26 EDT 2007
Hi Poul-Henning,
> Anyone know the encoding of the weather info ? I wonder if they
> use the minute bits to designate regions to save bits ?
>
http://www.ptb.de/en/org/4/44/442/dcf77_kode_e.htm :
"In addition weather data are transmitted, which are supplied by the
Swiss firm Meteo Time GmbH. The same data are transmitted also by the
Swiss standard frequency and time signal service HBG (75 kHz)."
HBG claims to be quite DCF77 compatible with their modulation, so hope
is that it's actually the same encoding. I did not find any info about
how they encode the information, though :-(
Chris
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