Casio 5054 Manual page 17

• Proper signal reception can be difficult or even impossible under the conditions listed
below.
Inside or
among
buildings
• 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.
E-16
Inside a Near household
vehicle appliances,
office
equipment,
or a mobile
phone
Near a Near high-
construction tension power
site, airport, or lines
other sources
of electrical
noise
Among or
behind
mountains