Re: [chrony-users] Re: Any nice example of chrony, WWVB, Raspberry Pi ?

[Steven Sommars <stevesommarsntp@xxxxxxxxx>]

I haven't seen any NTP Stratum 1 servers with Ref ID=WWVB for years.  Current WWVB radios seem to lack a PPS output.

On Wed, Oct 23, 2024 at 1:53 AM Miroslav Lichvar <mlichvar@xxxxxxxxxx> wrote:

On Wed, Oct 23, 2024 at 01:58:56AM +0000, Mike Collins wrote:
>  Any ideas where to look ?I'm not actually quite sure i have everything implemented correctly, but I did as best i could find, on the web, and nothing had an example with a WWVB board.Everything was GPS based.

I missed the fact that it's not GPS.

What WWVB board do you have? I don't have any experience with WWVB. We
have DCF77 around here. There is a lot of noise in that part of the
spectrum. The receiver/decoder needs to be have its own clock to be
able to provide a stable PPS signal and reconstruct the messages
reliably. It cannot compete with GPS, but I think it should have
better stability than 10s of milliseconds.

--
Miroslav Lichvar


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