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Analog Clock operation
A 72MHz Analog Clock automatically performs daily checks to ensure it's operating as expected. In addition, a clock
visually indicates when it has a signal loss and you can manually initiate a signal search, hand alignment check, and
reset the time of a clock.
Daily signal check (time update)
At six pre-scheduled times a day, at 2:01 AM/PM, 6:01 AM/PM, and 10:01 AM/PM clock time (not the actual time of the
day), a clock's receiver turns on to search for a Transmitter signal to receive a time update, starting with the previously
stored channel number. If a signal is not received from the first channel, the clock scans all channels to search for a
signal.
Daily hand alignment position check
Every day at midnight, an analog clock checks to ensure its hand positions are correct and automatically corrects if
they are off.
Loss of time signal
When a clock has not received a time signal for three consecutive days, its second hand enters a double step mode.
Low batteries can cause this non-signal reception - should this occur replace its batteries.
The stepping pattern continues until the clock receives a valid time signal from the Transmitter. Once a valid time is
received, the clock hands are set to the correct time and resume moving normally.
Manually reset a clock's time
To reset a clock's time, remove its batteries for 10 seconds and reinsert the batteries. The clock then will go through the
initial setup procedure; turn on its radio to search for a time signal update from a Transmitter.
Once a time signal has been received, the clock AUTOMATICALLY sets to the correct time as follows:
1. First, the second hand steps at eight times its normal speed until it finds the 12 o'clock position.
The minute hand and second hand may take turns stepping while the second hand is moving to the 12 o'clock
position.
2. After the second hand is set to 12, the minute hand begins to advance around the dial quickly towards the correct
time.
3. As the hour and minute hands advance toward the correct time, the hands pause for about 5 seconds at a
displayed hand position of either 4, 8 or 12 o'clock, whichever of these positions falls just before the actual time.
4. After the hands pause, the hour and minute hands proceed to advance quickly until the correct hour and minute are
reached. Once this occurs, the second hand then steps at eight times its normal speed until it reaches the correct
time. It then continues to move once per second. The time displayed on the clock should match the time displayed
on the Transmitter.
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