Samsung Mantra User Manual

Contents

81The ratings are not guarantees. Results will varydepending on the user's hearing device and hearingloss. If your hearing device happens to be vulnerableto interference, you may not be able to use a ratedphone successfully. Trying out the phone with yourhearing device is the best way to evaluate it for yourpersonal needs.M-Ratings: Phones rated M3 or M4 meet FCCrequirements and are likely to generate lessinterference to hearing devices than phones that arenot labeled. M4 is the better/higher of the two ratings.T-Ratings: Phones rated T3 or T4 meet FCCrequirements and are likely to generate lessinterference to hearing devices than phones that arenot labeled. T4 is the better/higher of the two ratings.Hearing devices may also be rated. Your hearingdevice manufacturer or hearing health professionalmay help you find this rating. Higher ratings meanthat the hearing device is relatively immune tointerference noise. The hearing aid and wirelessphone rating values are then added together. A sum of5 is considered acceptable for normal use. A sum of 6is considered for best use.In the above example, if a hearing aid meets the M2level rating and the wireless phone meets the M3level rating, the sum of the two values equal M5. Thisis synonymous for T ratings. This should provide thehearing aid user with "normal usage" while usingtheir hearing aid with the particular wireless phone."Normal usage" in this context is defined as a signalquality that is acceptable for normal operation.The M mark is intended to be synonymous with the Umark. The T mark is intended to be synonymous withthe UT mark. The M and T marks are recommendedby the Alliance for Telecommunications IndustriesSolutions (ATIS). The U and UT marks are referencedin Section 20.19 of the FCC Rules.The HAC rating and measurement procedure aredescribed in the American National StandardsInstitute (ANSI) C63.19 standard.Other Medical DevicesIf you use any other personal medical devices, consultthe manufacturer of your device to determine if it isadequately shielded from external RF energy. Yourphysician may be able to assist you in obtaining thisinformation. Switch your phone off in health carefacilities when any regulations posted in these areasinstruct you to do so. Hospitals or health care facilitiesmay be using equipment that could be sensitive toexternal RF energy.VehiclesRF signals may affect improperly installed orinadequately shielded electronic systems in motorvehicles. Check with the manufacturer or itsM3 + M2 = 5 T3 + T2 = 5Virgin M340.book Page 81 Tuesday, April 14, 2009 4:14 PM