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William Mitchell
William Mitchell

Where to Get a Serial Number for Atomic Alarm Clock 60

On the back of the TV on a sticker that shows a bar code and serial number. This sticker may be on either the right or left side, depending on the model; but is normally located in the lower half of the back of the TV. The model number may also be visible on the side of the TV panel.

Atomic Alarm Clock 60 Serial Number


By now, you have probably seen or own a radio controlled clock. These clocks are sold in all forms: as wall clocks, desk clocks, travel alarms, and wristwatches. They have a tremendous advantage over conventional clocks, they are always right! When working properly, radio controlled clocks always display the correct time, down to the exact second. This means that you should never have to adjust them. During the transition from standard time to daylight saving time (DST) they "spring forward" one hour, and when DST is finished they "fall back" one hour.

Some manufacturers refer to their radio controlled clocks as "atomic clocks", which isn't really true. An atomic clock has an atomic oscillator inside (such as a cesium or rubidium oscillator). A radio controlled clock has a radio inside, which receives a signal that comes from a place where an atomic clock is located.

Once your radio controlled clock has decoded the signal from WWVB, it will synchronize its own clock to the message received by radio. Before it does so, it applies a time zone correction, based on the time zone setting that you supplied. The time broadcast by WWVB is Coordinated Universal Time (UTC), or the time kept at the Prime Meridian that passes through Greenwich, England. While a few users like their clocks to display UTC (ham radio operators, for example), most prefer to display local time. This means that the time in your area is corrected by the number of hours shown in the table.

If this does not solve the issue, please fill out the form HERE and include the the 8 digit serial number of the gateway and the device id ( that begins with 000 ) of the sensor(s) and we will look into the issue.

I mean - a frequency controlled clock / alarm - the frequency (50 Hz or 60 Hz) from the electricity network - those clocks that use a motor that runs exactly on the frequency ... with a number of gears ... a signal that moves the clock pointer hands (or flipping numbers). Like my own alarm clock also clocks in public spaces make use of it.

This leave the simpler question - how does a clock use the mains frequency to run stably? I once took an old alarm clock apart (how else do you learn stuff in the 70's - you weren't going to google it...) and discovered that there was a part that had a whole bunch of magnetic "teeth" of alternating polarity - 50 in total. Every oscillation of the mains voltage would advance this wheel by one tooth, so you would get two revolutions per second. This was then stepped down by some gears to give the hour, minute and second hand the right motion. And since "somebody" keeps the mean frequency constant, your clock never needs to be set... as long as you're OK with errors up to 30 seconds.

The no-frills RCA is also easier to use than other, more complicated clocks we tested. It has a large snooze button across the top, so you can usually hit it without much trouble. On the back, there are three switches: one for setting the time and alarm, one for dimming the front display, and one for turning the alarm on and off. The alarm emits a loud, constant beep that can be heard from at least 20 feet away. That wake-up call continues until you shut off the alarm or hit snooze (which provides an extra nine minutes of slumber every time you press it, for well over an hour).

Alessi Optic 02 B Alarm Clock: This now-discontinued model from Alessi was an example of high design being hampered by low-quality features. This clock was too audible to be a peaceful bedside companion, producing a tick-tock sound so loud that it bothered us even when we were in the next room. No doubt, the Italian space-age design is eye-catching, but having this clock near the bed made the passing of time a torturous, second-by-second affair. And we found its plastic construction flimsy, with tiny and difficult-to-set dial controls that had more in common with a cheap, drugstore alarm clock than something sold for many times the price.


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