Appendix73Electronic DevicesYour wireless telephone is a radio transmitter and receiver.When the power is on, the phone receives and sends out RFenergy. Most modern electronic equipment, such asequipment in hospitals and cars, contains an RF signal shield.RF energy may affect some inadequately shielded electronicequipment.Turn off your phone in health care facilities, and alwaysrequest permission before using the phone near medicalequipment.Consult the manufacturer of any personal medical devices,such as pacemakers and hearing aids, to determine if they areshielded adequately from external RF signals.Note if there are any regulations posted in the area regardingthe operation of wireless phones, and learn where you canuse them safely within the facility.AircraftTurn off your phone before boarding any aircraft. The FederalAviation Administration (FAA) requires that you have priorpermission from the crew to use your phone while the planeis on the ground. FCC regulations prohibit using your phonewhile the plane is in the air. Do not use your phone at anytime while traveling on board a plane.Blasting AreasConstruction crews often use remote-control RF devices toset off explosives. To avoid interfering with blastingoperations, turn off your phone when you are in a blastingarea or in any area with signs posted that read “Turn off two-way radio.”
