We recently replaced an alarm clock because it would throughout the day make this noise (dah duh -- dah duh -- -- dah duh duh duh) all the time.
We replaced it with another radio alarm clock from a different manufacture., but this one does the exact same thing. This one has the time preset you just set the time zone., the lithium battery keeps the clock going.
Anyway, every hour at 45 minutes after the hour, this sound happens. Two alarm clocks from different manufactures both doing the same thing.
Could this be electrical noise? My UPS plugged into the other wall doesn't kick in at these times. And it's every 45 minutes after the hour. It's not real loud, but it is noticable. Doesn't sound anything like the actual alarm, and the radio is NOT on.
Ideas?
Thanks!