LG G6 H872 User Manual

Page 157

background image

For Your Safety


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


This manual is related to the following products: