WWVB is a 60KHz transmitter located in Boulder CO. For more info check out: http://www.boulder.nist.gov/timefreq/ Rick Sherman KM6TI > I'm very curious. What the hey is WWVB?? I use WWV on 2.5, 5, 10, etc > MHz > all the time but never heard of the "B". By the way the "Pocket Watch > B" > module is great for time keeping thingy's. Mine only lost 6 seconds in > 21 > days. It will interface to most anything.... ..==Mac== > >