[time-nuts] WWVB Signal Generator

[Mark Sims]

If I was going to do it I would take a cheap Ublox 7M board (around $10 with 
antenna),  program one of the time pulse outputs for 60 kHz (it divides evenly 
into 48 Mhz so no jitter),  feed  the Ublox serial data / 1PPS to an AVR chip 
(or $2 Arduino Nano  clone), and use that to modulate the 60 KHz output.   
Total cost less than $20 and should get to to the microsecond level range.  
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