LG G6 H872 User Manual
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For Your Safety
156
T-Ratings: Devices rated T3 or T4 meet FCC requirements and are likely to generate
less interference to hearing devices than devices that are not labeled. T4 is the
better/ higher of the two ratings.
Hearing devices may also be rated. Your hearing device manufacturer or hearing
health professional may help you find this rating. Higher ratings mean that the
hearing device is relatively immune to interference noise. The hearing aid and
wireless device rating values are then added together. A sum of 5 is considered
acceptable for normal use. A sum of 6 is considered for best use.
In the above example, if a hearing aid meets the M2 level rating and the wireless
device meets the M3 level rating, the sum of the two values equal M5. This should
provide the hearing aid user with “normal usage” while using their hearing aid with
the particular wireless device. “Normal usage” in this context is defined as a signal
quality that’s acceptable for normal operation.
The M mark is intended to be synonymous with the U mark. The T mark is intended
to be synonymous with the UT mark. The M and T marks are recommended by
the Alliance for Telecommunications Industries Solutions (ATIS). The U and UT
marks are referenced in Section 20.19 of the FCC Rules. The HAC rating and
measurement procedure are described in the American National Standards
Institute (ANSI) C63.19 standard.
To ensure that the Hearing Aid Compatibility rating for your device is maintained,
secondary transmitters such as Bluetooth® and WLAN components must be
disabled during a call.
For information about hearing aids and digital wireless devices:
Wireless Devices and Hearing Aid Accessibility
Gallaudet University, RERC
FCC Hearing Aid Compatibility and Volume Control