[ntp:questions] PC DCF-77 signal emulation?

Rob van der Putten rob at sput.nl
Wed Sep 9 08:17:38 UTC 2009


Hi there


Uwe Klein wrote:

> a generic serialport sending with 50 or 25 Baud that switches a 77.5kHz 
> modulation signal to 75% ?

It might be possible to drive the clocks with a TTL signal.

> ( and a little bit of code that sends the DCF code bits every second )

With a PLL you can start the pulse on the second.


Regards,
Rob
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