[time-nuts] New WWVB modulation format receivers (NOT)

Tim Shoppa tshoppa at gmail.com
Fri Feb 21 11:44:29 EST 2014


At work we have various models of these "Selena" LED clock displays in the
new control center and dispatching rooms:

http://www.ledclocks.com/SELENA4x7.pdf

We use the "bare unit" which just has a Cat5 Ethernet jack that syncs to a
NTP clock on the network, but they also list options for WWVB, DCF77,
various IRIG variants, etc. I have never priced these options.

The TrueTime IRIG LED clock displays also show up quite regularly on E-bay
etc. if you already have something to generate the IRIG clock (and I'm
guessing you have that somewhere Rick! All of our IRIG timecode generators
are HP and/or Agilent if I remember.).

Tim N3QE


On Wed, Feb 19, 2014 at 6:49 PM, Richard (Rick) Karlquist <
richard at karlquist.com> wrote:

> It may be true that WWVB is sending out a new
> format, but the receivers for it don't seem to
> exist.  The exclusive rights are held by this
> company, which is clearly on hold while it
> tries to find a customer who will pay for a
> wafer run:
>
> http://eversetclocks.com/
>
> I've seen this sort of thing many times before.
> Don't be surprised if this goes the way of
> AM stereo, etc.
>
> Does anyone have any positive news about this?
>
> Rick
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