[time-nuts] Nutty time-nuttery with WWVB

Clint Jay cjaysharp at gmail.com
Thu Nov 10 13:27:29 UTC 2016


Found it.

There was an article by Andy Flind in a UK electronics magazine,  EPE
December 2001 which detailed an MSF repeater to overcome a problem with
60KHz time signal reception.

Shouldnt be bothered by the signal format as I remember it being a very
simple design.

As others have pointed out,  even re radiating the original signal may
cause problems so take care.

On 10 Nov 2016 13:15, "Attila Kinali" <attila at kinali.ch> wrote:

> On Thu, 10 Nov 2016 07:18:42 -0500
> Peter Reilley <preilley_454 at comcast.net> wrote:
>
> > Could I implement my own personal WWVB transmitter that would
> > be powerful enough to be picked up by the clocks in my house?
> > The signal at 60 KHz might be able to be produced directly by some
> > sound cards.   With that and a ferrite rod antenna I might get
> > reliable time elsewhere in my house outside of my lab.
>
> There are many of those. Just google for WWVB simulator.
> Interestingly, there seem more DCF77 simulators out there than
> WWVB ones.
>
> As Clint wrote, be carefull not to emit too much. Transmit only
> as much power that your clocks can just barely receive it.
> Which probably means not to connect any wire at all.
>
> 60kHz is low enough that it will pass through all but steel reinforced
> concrete like through air and thus you will probably jam all sourounding
> houses/clocks as well.
>
> The same is also true for repeaters, btw.
>
>                                 Attila Kinali
>
> --
> It is upon moral qualities that a society is ultimately founded. All
> the prosperity and technological sophistication in the world is of no
> use without that foundation.
>                  -- Miss Matheson, The Diamond Age, Neil Stephenson
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