[time-nuts] WWVB Chronverter update progress
paulswedb at gmail.com
Sun Sep 9 16:55:03 EDT 2018
Indeed anything could be used if you want to modify the clocks. I don't.
They do what they do very well and consume 0 power.
Can be placed in any location in the house or garage and even the basement.
Interestingly without the real wwvb I can orient them any way I want also.
The last thing I want to do is hack them. But like you say if you are
willing to hack a set of 3 wires will do very well. Or just leave them
powered all the time. Many options.
But many on time-nuts have these clocks and should wwvb be turned off its
nice to know my weather stations will keep working and have the right time
and far more accurately then my mobile phone.
Last comment. Its a time nuts challenge just have to tinker and share.
On Sun, Sep 9, 2018 at 1:34 PM, Achim Gratz <Stromeko at nexgo.de> wrote:
> paul swed writes:
> > Hello to the group its time for a wwvb chronverter update. I used the
> > antenna as Alex suggested. I added caps to resonate it sort of.
> I am still a bit puzzled by this desire to feed the time in via LF
> waves. Maybe WWVB clocks are more different from the MSF / DCF77 ones I
> see around here than I thought. All of the ones I've looked at had a
> small (but not tiny) module in them which does all the decoding and the
> clock itself really only sees the decoded bits. The module typically is
> only enabled around the update hour (mostly 4am, sometimes 2am) and
> switched off for the rest of the day (unless they couldn't sync in the
> about 15 minutes they usually keep trying). So if you really wanted to
> wean these off their LF source, it would be much easier to just send the
> time out via some ISM band (433MHz or 868MHz / 915MHz as appropriate for
> your location) and replace the module with a different one that provides
> the decoded bits these clocks expect, just from a different source.
> Both the RX modules (actually I see only TX/RX combos at the usual
> suspects) and the corresponding antennas (ceramic strip, helix or coil)
> should fit nicely in the space formerly used up by the RX module and the
> ferrite rod. You'd need another microC to convert the data or use one
> of the modules that are programmable.
> +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+
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