[time-nuts] improved WWVB signal being planned?

[paul swed]

Nope never heard about this it makes sense many of the cw signals for the
navy and such moved to either msk or psk a long time ago. It would
effectively screw up the old receivers like the HP 117, Tracor 599 and
several others as frequency references.
But I would agree that PSK might indeed allow additional processing gain and
hopefully a steady carrier for frequency reference could be regenerated.
Regards
Paul
WB8TSL

On Mon, Mar 28, 2011 at 5:02 PM, beale <beale at bealecorner.com> wrote:

> I thought this was interesting... I don't know if this had been already
> mentioned here- probably some list members are already part of the process!
>  I wonder if this would be a spread-spectrum code like the GPS signal?
>
> "[...] Another idea being actively investigated is to add phase modulation
> to the existing WWVB signal while leaving the AM BCD code intact. This would
> allow all existing devices to continue to work, but allow a new generation
> of radio-controlled clocks to be developed.  These new devices would have
> greater processing gain and therefore be capable of reading the time code
> with a lower signal-to-noise ratio."
>
> from  "We Help Move Time Through the Air
> Managers of WWVB Explore Options to Improve the Service Further"
> by John Lowe, manager of NIST radio stations WWV/WWVH/WWVB.
> http://tf.boulder.nist.gov/general/pdf/2504.pdf
>
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