FG> I believe there's a 100hz subcarrier on all the WWV/WWVH broadcasts
 FG> with time and date information. 
That is correct.
 FG> WWVB consists of nothing but such information, on its carrier.
That is incorrect.  WWVB does not use a 100hz subcarrier.
 FG> (Working from menory, now. I do have the exact information
 FG> somewhere...) 
Bad mistake.  Here is the correct information from NIST Special
Publication 432:
The WWVB time code is synchronized with the 60-kHz carrier and is
broadcast continuously at a rate of 1 pulse per second using pulse-
width modulation.  Each pulse is generated by reducing the carrier
power 10 dB at the start of the second, so that the leading edge
of every negative-going pulse is on time.  Full power is restored
either 0.2, 0.5, or 0.8 s later to convey either a binary "0",
"1", or a position marker, respectively.
PS: The Radio Shack clock picks up WWVB, not WWV.
... I call things as I see them; If I didn't see them, I make them up!
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