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Notes on using Bluetooth
®
functions
■
Frequency band
Bluetooth
®
functions of the au cell phones use frequencies
in the 2.4 GHz band ranging from 2.402 GHz to 2.480 GHz.
Bluetooth
®
function: 2.4FH1
This product uses the 2.4 GHz band.
FH-SS is used as the modulation scheme.
The interference distance is about 10 m
or less.
• The bands of mobile unit identification
devices cannot be avoided.
■
Precautions about Bluetooth
®
• The Bluetooth
®
function of this product conforms to the
domestic standards of Japan and FCC standards, and
has been certified.
• The 2.4 GHz band used by Bluetooth
®
devices is shared
by various other devices. For this reason, Bluetooth
®
device use technologies for minimizing effects from
other devices using the same radio frequency band. In
some cases, however, the communication speed and
connectable range may be decreased, or disconnection
may occur, due to interference by other devices.
• The communication speed and connectable range vary
depending on the distance between communication
devices, obstacles and the Bluetooth
®
devices used.
■
Bluetooth
®
precautions
The frequencies used by the Bluetooth
®
function of this
product are in the 2.4 GHz band. In this frequency band,
other similar wireless stations, in-plant wireless stations
for mobile unit identification that require a license for use,
such as factory production lines, specific smallpower
wireless stations that do not require licenses, amateur
wireless stations (collectively called “other wireless
stations” from here on) are operated in addition to home
electrical appliances such as microwave ovens, devices for
industrial, scientific and medical devices.
1. Before using this product, make sure that “other wireless
stations” are not in operation nearby.
2. In the event that instances of radio wave interference
have occurred between this product and “other wireless
stations”, immediately either relocate this product or stop
operation of the device (stop emission of radio waves).
3. If you are unclear on any points or are troubled by
anything, contact an au shop or Customer Service
Center.