LG VX9100 - enV2 Cell Phone User Manual page 99

device is relatively immune to
interference noise. The hearing aid
and wireless phone 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 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'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.
When you're talking over the cell
phone, it's recommended you'd turn
the BT (Bluetooth) mode off for
HAC.
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/
DigWireless.htm
HLAA (Hearing Loss Association of
America)
http://www.hearingloss.org/learn/cellph
onetech.asp
The Hearing Aid Compatibility FCC
Order
http://hraunfoss.fcc.gov/edocs_public/at
tachmatch/FCC-03-168A1.pdf
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LG 9100