[time-nuts] WWVB Outages?

John Ackermann N8UR jra at febo.com
Fri Dec 26 20:02:27 UTC 2008


I don't see any alarm LEDs on my Spectracom WWVB receivers (one a
WWVB-DO, the other a clock), but I'm not sure that their "unlock" LEDs
latch, or that the "error" LEDs trip on loss of lock.

John
----

Greg Burnett said the following on 12/26/2008 02:50 PM:
> Have any of you noticed intermittent WWVB outages lately?
> 
> I've been having that problem, every once in a while, the past month or 
> more. For example, here in Colorado Springs, the 60 kHz signal disappeared 
> sometime this morning before 11:42AM MST, and returned at 12:28PM MST. When 
> this happens it kills my routine plot of my GPS-disciplined house standard 
> against WWVB (that I use for in-house cross-checking / confidence purposes).
> 
> I'm using a Kinemetrics Model 60TF WWVB Frequency Comparator / Receiver, 
> that requires a continuous WWVB signal. (This is unlike the consumer "Atomic 
> Clocks" that the public use; those kinds of WWVB-locked clocks do *not* 
> require a continuous on-air signal, but rather "flywheel" in between 
> scheduled locks a few times per day, as I understand it?)
> 
> Cheers,
> Greg
> 
> 
> 
> 
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