17
Intr
oduction
■
Radio frequencies
The radio frequencies for the Bluetooth function of the FOMA
terminal are as follows:
2.4 FH 1
2.4
: Indicates radio facilities that use 2400 MHz
frequencies.
FH
: Indicates modulation is the FH-SS system.
1
: Indicates that an estimated interference distance is 10
meters or less.
: Indicates that all radio frequencies 2400 MHz through
2483.5 MHz are used, and that the frequencies for
mobile object identifiers shall not be avoided.
■
Cautions on Using Bluetooth Devices
Bluetooth operates at radio frequencies assigned to the
in-house radio stations for mobile object identifiers that have
to be licensed and are used in production lines of a factory,
specific unlicensed low power radio stations, and amateur radio
stations (hereafter, referred to “another radio station”) in addition
to scientific, medical, industrial devices, or home electric
appliances such as microwave ovens.
1. Before using this product, make sure that “another radio
station” is not operating nearby.
2. If radio interference between this product and “another radio
station” occurs, move immediately to another place or turn off
power to avoid interference.
3. For further details, contact “docomo Information Center” on
the back page of this manual.
Notes on handling Wireless LAN (WLAN)
■
Wireless LAN uses radio waves for exchange information, that
has advantage of LAN connection in the range of radio waves.
However, if you do not set security, the malicious third party
might be able to intercept your communication or hack your
network. It is recommended that you set security on your own
decision and responsibility before using wireless LAN.
■
Wireless LAN
Do not use Wireless LAN in a place where magnetized
by electric product, AV, OA equipment, etc. or where
electromagnetic wave is generated.
If magnetism or electrostatic noise affects your mobile phone,
noise may be increased or communication may not be available
(especially when using microwave oven, it may affect your
mobile phone).
Using near TV or radio may cause poor reception or TV screen
may be disturbed.
When multiple wireless LAN access points exist near your
mobile phone and they use the same channel, search may not
be performed correctly.
■
Radio frequencies
The radio frequencies for WLAN devices are written on battery
pack compartment of your mobile phone. Label description are
as follows:
2.4 DS/OF 4
2.4
: Indicates radio facilities that use 2400 MHz
frequencies.
DS/OF
: Indicates modulation is the DS-SS/OFDM system.
4
: Indicates that an estimated interference distance is 40
meters or less.
: Indicates that all radio frequencies 2400 MHz through
2483.5 MHz are used, and that the frequencies for
mobile object identifiers shall be avoided.
To use on airplane, confirm with airline company in advance.
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