194 Section 4A: SafetyUsing Your Phone Near Other Electronic Devices
Mostmodern electronic equipmentis shielded from Radio Frequency (RF)
signals. However, RF signals from wireless phones may affectinadequately
shielded electronic equipment.
RF signals may affectimproperly installed or inadequately shielded
electronic operating systems and/or entertainmentsystems in motor
vehicles. Check with the manufacturer or their representative to determine
if these systems are adequately shielded from external RF signals. Also
check with the manufacturer regarding any equipmentthathas been
added to your vehicle.
Consultthe manufacturer of any personal medical devices, such as
pacemakers and hearing aids, to determine if they are adequately shielded
from external RF signals.
Note: Always turn off the phone in health care facilities and requestpermission before
using the phone near medical equipment.
Turning Off Your Phone Before Flying
Turn off your phone before boarding any aircraft. To preventpossible
interference with aircraftsystems, the U.S. Federal Aviation Administration
(FAA) regulations require you to have permission from a crew member to
use your phone while the plane is on the ground. To preventany risk of
interference, FCC regulations prohibitusing your phone while the plane is
in the air.
Turning Off Your Phone in Dangerous Areas
To avoid interfering with blasting operations, turn your phone off when in a
blasting area or in other areas with signs indicating two-way radios should
be turned off. Construction crews often use remote-control RF devices to
setoff explosives.
Turn your phone off when you're in any area thathas a potentially explosive
atmosphere. Although it's rare, your phone and accessories could generate
sparks. Sparks can cause an explosion or fire, resulting in bodily injury or
even death. These areas are often, butnotalways, clearly marked. They
include:
���Fueling areas such as gas stations.
䢇Below deck on boats.
䢇Fuel or chemical transfer or storage facilities.