14 Jan
2024
14 Jan
'24
8:21 p.m.
On 01/14/2024 1:54 PM CST Jonathan Chapman via cctalk
<cctalk(a)classiccmp.org> wrote:
Bill,
If it's an older clock it's probably tripping over a timecode transmission
format/modulation change. I forget the exact details but changes were required to my old
8085-based Spectracom receiver.
Thanks,
Jonathan
On Sunday, January 14th, 2024 at 14:49, Bill Gunshannon via cctalk
<cctalk(a)classiccmp.org> wrote:
>
>
> This is kind computer related but maybe more ham radio related
> but I figure if anywhere, here is the place to find an answer.
>
> I have a SkyScan ATOMIC CLOCK.
> It is supposed to get its time from WWVB.
> The antenna icon that is supposed to mean it is receiving
> WWVB is on.
>
> Your probably wondering why I keep saying "supposed to".
> The clock is always wrong. Slow by about 2 minutes.
>
> Is there a known problem with WWVB?
>
> bill
The details are on the NIST website. The format change was 2011 / 2012 ish. I think the
details are in this paper.
https://www.nist.gov/publications/new-improved-system-wwvb-broadcast
I'm looking at my "atomic" clock and it agrees with the computer.
Will
Grownups never understand anything by themselves and it is tiresome for children to be
always and forever explaining things to them,
Antoine de Saint-Exupery in The Little Prince