> NB> For Christmas, my wife bought me a Radio Shack "super accurate auto-
 > NB> set digital clock" (cat. # 63-970) that sets
 > NB> itself to the NIST time broadcasts. I was
 > NB> wondering what frequency it actually uses. I know
 > NB> WWV broadcasts on 5, 10, 15, and 20 MHz, and WWVB
 > NB> transmits on 60 KHz. Judging from the fact that it
 > NB> uses a ferrite rod antenna, and that reception is
 > NB> better at night, night, and that, as far as I know
 > NB> WWV doesn't transmit any type of "packet,"
 > NB> "telemetry" or "compuerter data" on their signals,
 > NB> I believe it is actually picking up WWVB. The
 > NB> owners manual says "WWV," but it doesn't make any
 > NB> mention of frequency.
 >
 >   I believe there's a 100hz subcarrier on all the WWV/WWVH broadcasts with
 >time and date information.
 >
 >   WWVB consists of nothing but such information, on its carrier. (Working
 >from menory, now. I do have the exact information somewhere...)
 >
Hmmm, didn't know about the 100Hz subcarrier. Interesting! Thanks for the 
info!
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