13
Contents/Precautions
Bluetooth
devices
■
This terminal is equipped with the security features, that are
compliant with Bluetooth standards for communication via
Bluetooth. However, depending on the settings, there may not be
enough security. Be aware of security risks when using
Bluetooth.
■
DOCOMO assumes no responsibility for any information which
may be leaked during communication via Bluetooth.
■
Frequency bands
The following are frequency bands that the terminal
’
s Bluetooth
function uses:
Operating frequency band
：
2400 MHz band
Modulation system
：
FH-SS
Assumed interference range
：
10 m or less
Availability of frequency changing
：
uses entire 2400 MHz – 2483.5
MHz band, and can avoid the band
used by RFID systems
·
Available channel varies by countries.
·
To use in airplane, confirm with airline company in advance.
■
Cautions on using Bluetooth devices
In the bandwidth used by this terminal, in addition to home electric
appliances such as a microwave oven and industrial/scientific/medical
devices, in-plant radio stations used to identify mobile objects used in
production lines of a factory that require a license, specified low
power radio stations, or amateur radio stations that do not require a
license (hereafter “other radio stations”) can be in operation.
1. Before using this terminal, check whether other radio stations are in
operation in your neighborhood.
2. If radio wave interference occurs between the terminal and “other
radio stations”, use the terminal in a different location or “Turn the
power OFF” to avoid the radio wave interference.
3. For details, contact “General Inquiries” on the rear cover of this
manual.
Wireless LAN (WLAN)
■
Wireless LAN (WLAN) exchanges information using radio waves,
and allows you to freely establish LAN connection if you are
within an area where radio wave reaches. On the other side, if
you communicate without appropriate security settings,
communications may be intercepted or hacked by malicious
parties. It is recommended to make necessary security settings
on your judgment and responsibility.
■
Wireless LAN
Do not use Wireless LAN in a place where magnetized by electric
products, AV, OA equipment, etc. or where electromagnetic wave is
generated.
·
If magnetism or electrostatic noise affects the terminal, noise may be
increased or communication may not be available (especially when
using microwave oven, it may affect the terminal).
·
Using near TV or radio may cause poor reception or TV screen may be
blurred.
·
When multiple wireless LAN access points exist near the terminal and
they use the same channel, search may not be performed correctly.
■
Frequency bands
The following are frequency bands that devices with WLAN use:
Operating frequency band
：
2400 MHz band
Modulation system
：
DS-SS, OFDM
Assumed interference range
：
40 m or less
Availability of frequency changing
：
uses entire 2400 MHz – 2483.5
MHz band, and can avoid the band
used by RFID systems
·
To use WLAN overseas, places for using may be limited in some
countries. In such case, check the conditions such as available
frequency, regulations, etc. for the country to use it.
