Re: [chrony-users] Using radio time signal for syncronization

[Gerd Hoerst <gerd@xxxxxxxxxx>]

hI !

im using gude dcf77 usb clocks with dcfshm....

to have them in range og gps clocks i use

refclock SHM 0 offset 0.423

in config file

br gerd

Am 07.01.25 um 10:33 schrieb Miroslav Lichvar:
> On Sun, Jan 05, 2025 at 01:22:08AM +0000, Sviatoslav Feshchenko wrote:
> > Is there either a software implementation that would allow chrony to synchronize to these time signals, or is there a device that can be purchased or built with certain chips, that would produce 1PPS output and NMEA sentences for example that can then be interpreted by GPSD and chrony?
> I'm not aware of any. We have DCF77 here, which is supported by the
> ntpd parse driver reading the signal from a serial port.
>
> I guess the easiest solution would be to port the ntpd audio code to alsa or
> pipewire and then use the SOCK wrapper ntp-refclock to feed chrony.

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