[time-nuts] DCF77 question

Magnus Danielson magnus at rubidium.dyndns.org
Wed Oct 12 19:08:18 EDT 2011


On 13/10/11 01:03, asmagal at fc.up.pt wrote:
> QUOTE:
>
> "DCF77 marks seconds by reducing carrier power
> for an interval beginning on the second".
>
> UNQUOTE
>
> This is not a good (Heaviside step) time marker.
>
> Is it possible to decode that signal by any very
> simple "on-my-shelf gear", as for instance a PC
> sound card,to recover a good seconds time mark?
>
> Do you know some software to perform the above task?
>
> Thanks for reading.
> Antonio
> CT1TE

A typical cheap DCF77 receiver is hooked to the serial port and software 
decoding of the signal is done. More advanced processing-exercises have 
also been done in software, such as PHK can provided.

Cheers,
Magnus




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