PalmOne Treo 650 User manual - page 281

Safety

269

Using Your Phone Near Other Electronic Devices

Most modern electronic equipment is shielded from radiofrequency (RF) signals. However, RF signals 

from wireless phones may affect inadequately shielded electronic equipment.

RF signals may affect improperly installed or inadequately shielded electronic operating systems and/

or entertainment systems 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 equipment that has been added to your vehicle.

Consult the manufacturer of any personal medical devices, such as pacemakers and hearing aids, to 

determine if they are adequately shielded from external RF signals.

Turning Off Your Phone Before Flying

Turn off your phone before boarding any aircraft. To prevent possible interference with aircraft 

systems, 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 prevent any risk of 

interference, FCC regulations prohibit using 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 set off explosives.

Turn your phone off when you're in any area that has 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, but not always, clearly marked. They 

include:

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Fueling areas such as gas stations.

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Below deck on boats.

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Fuel or chemical transfer or storage facilities.

Note:

Always turn off the phone in health care facilities and request permission before using the phone 

near medical equipment.