Here's an operating manual for a Howard Miller Accuwave DS "radio-controlled" clock.
Of particular note is the fact that the device does not work very well in California. As such, you must be patient to set these clocks manually -- they seem to need to "struggle" for an hour or so before you can manually adjust them.
Update 3/13/2014: Since the daylight savings time switch, my clock reset itself about four times, frequently setting itself 20 minutes behind the correct time. I determined that the issue was caused by a low battery.
