paul swed writes: > Hello to the group its time for a wwvb chronverter update. I used the loop > 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. Regards, Achim. -- +<[Q+ Matrix-12 WAVE#46+305 Neuron microQkb Andromeda XTk Blofeld]>+ Wavetables for the Terratec KOMPLEXER: http://Synth.Stromeko.net/Downloads.html#KomplexerWaves _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.