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Casio 4390 - Page 26

Casio 4390
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E-24
Proper signal reception can be difficult or even impossible under the conditions listed
below.
Signal reception normally is better at night than during the day.
Time calibration signal reception takes from two to seven minutes, but in some
cases it can take as long as 14 minutes. Take care that you do not perform any
button operations or move the watch during this time.
Inside or
among
buildings
Inside a
vehicle
Near a
construction
site, airport,
or other
sources of
electrical
noise
Near high-
tension power
lines
Among or
behind
mountains
Near
household
appliances,
office
equipment,
or a mobile
phone

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