236 Additional Infor m ationw w w . d e l l . c o m | s u p p o r t . d e l l . c o mRegulatory NoticesElectromagnetic Interference (EMI) is any signal or emission, radiated infree space or conducted along power or signal leads, that endangers thefunctioning of a radio navigation or other safety service or seriouslydegrades, obstructs, or repeatedly interrupts a licensed radiocommunications service. Radio communications services include but arenot limited to AM/FM commercial broadcast, television, cellular services,radar, air-traffic control, pager, and Personal Communication Services(PCS). These licensed services, along with unintentional radiators such asdigital devices, including computer systems, contribute to theelectromagnetic environment.Electromagnetic Compatibility (EMC) is the ability of items of electronicequipment to function properly together in the electronic environment.While this computer system has been designed and determined to becompliant with regulatory agency limits for EMI, there is no guarantee thatinterference will not occur in a particular installation. If this equipmentdoes cause interference with radio communications services, which can bedetermined by turning the equipment off and on, you are encouraged to tryto correct the interference by one or more of the following measures:• Reorient the receiving antenna.• Relocate the computer with respect to the receiver.• Move the computer away from the receiver.• Plug the computer into a different outlet so that the computer and thereceiver are on different branch circuits.If necessary, consult a Dell Technical Support representative or anexperienced radio/television technician for additional suggestions.Dell computer systems are designed, tested, and classified for theirintended electromagnetic environment. These electromagneticenvironment classifications generally refer to the following harmonizeddefinitions:• Class A is typically for business or industrial environments.• Class B is typically for residential environments.
