Lg AX390 User Manual download pdf (Page 108)

In the above example, if a hearing aid meets the M2

level rating and the wireless phone 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 phone. “Normal usage” in this

context is defined as a signal quality that is

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.

When you're talking over the cell phone, it's

recommended you'd turn the BT mode off for HAC.

SAFETY

106

SAFETY

For information about hearing aids and digital

wireless phones

FCC Hearing Aid Compatibility and Volume

Control

http://www.fcc.gov/cgb/dro/hearing.html

Gallaudet University, RERC

http://tap.gallaudet.edu/DigWireless.KS/DigWirel

ess.htm

Self Help for Hard of Hearing People Inc.

[SHHH]

www.hearingloss.org/hat/TipsWirelessPhone.htm

The Hearing Aid Compatibility FCC Order

http://hraunfoss.fcc.gov/edocs_public/attachmatc

h/FCC=03-168A1.pdf

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Lg AX390 User Manual Page 108