Samsung SGH-I897ZKMATT User Manual
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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.
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 mobile 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.
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
equal M5. This is synonymous for T ratings. This should provide
the hearing aid user with “normal usage” while using their
hearing aid with the particular wireless mobile device.
“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.
HAC/Wi-Fi for Newer Technologies
This phone has been tested and rated for use with hearing aids
for some of the wireless technologies that it uses. However, there
may be some newer wireless technologies used in this phone
that have not been tested yet for use with hearing aids. It is
important to try the different features of this phone thoroughly
and in different locations, using your hearing aid or cochlear
implant, to determine if you hear any interfering noise. Consult
your service provider or the manufacturer of this phone for
information on hearing aid compatibility. If you have questions
about return or exchange policies, consult your service provider
or phone retailer.
M3 + M2 = 5
T3 + T2 = 5