[time-nuts] Homebrew WWVB TX simulator?
hmurray at megapathdsl.net
Tue Sep 14 21:49:42 UTC 2010
> Maybe a PIC to do the modulations trains and a serial interface to set it
> up. In all about 3-4 chips. Should not be too hard.
Why do you need more than one chip?
Why can't the PIC generate the 60 KHz signal by bit banging a couple of pins?
I'm thinking of a 2 or 3 bit D/A with 2 or 3 more pins for the low power
portion of the signal.
1 bit might be enough with a good external filter.
I wonder what the range would be using 2 feet of wire for an antenna. Do you
want to fix your neighbors clocks too?
These are my opinions, not necessarily my employer's. I hate spam.
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