User's Manual

Appendix
272
T-Ratings: Mobile devices rated T3 or T4 meet FCC requirements and are likely to generate
less interference to hearing devices than mobile devices that are not labeled. T4 is the better/
higher of the two ratings. T-ratings refer to enabling inductive coupling with hearing aids
operating in telecoil mode.
Hearing devices may also be rated. Your hearing aid manufacturer or hearing health
professional may help you find this rating. Higher ratings mean that the hearing device is
relatively immune to interference noise.
Under the current industry standard, American National Standards Institute (ANSI) C63.19,
the hearing aid and wireless mobile device rating values are added together to indicate how
usable they are together. For example, if a hearing aid meets the M2 level rating and the
wireless mobile device meets the M3 level rating, the sum of the two values equals M5.
Under the standard, this should provide the hearing aid user with normal use while using
the hearing aid with the particular wireless mobile device. A sum of 6 or more would indicate
excellent performance.
However, these are not guarantees that all users will be satisfied.
T ratings work similarly.
The HAC rating and measurement procedure are described in the American National
Standards Institute (ANSI) C63.19 standard.
FCC 규격용 - 전략제품개발4그룹
SAMSUNG CONFIDENTIAL