User manual

Contents/Precautions
10
2. If radio interference between the handset and "another
radio station" occurs, avoid interference by moving
immediately to another place or "turning off the power".
3. Contact the number listed in "General Inquiries" on the
last page for further details.
Notes about wireless LAN (WLAN)
Wireless LAN (WLAN) uses radio waves to communicate
information. Therefore, it has an advantage of freely
connecting to the LAN within the service area. On the other
hand, if security setting is not set, it is possible for a
malicious third party to intercept the communication
contents or hack. It is recommended to set security setting at
your own risk and judgement.
Wireless LAN
Do not use wireless LAN near magnetic devices such as electric
appliances or AV/OA devices or in radio waves.
･ Magnetism or radio waves may increase noises or disable
communications (especially when using a microwave oven).
･ When used near TV, radio, etc., reception interference may occur or
channels on the TV screen may be disturbed.
･ If there are multiple wireless LAN access points nearby and the same
channel is used, sear ch may not work correctly.
Radio frequencies
In the home screen, [R]/[Settings]/[About phone]/
[Authentication] to confirm the radio frequencies the WLAN-
installed devices use. The followings are the descriptions:
① 2.4: This radio equipment uses the 2,400 MHz band.
② DS: The modulation system is the DS-SS system.
③ OF: The modulation system is the OFDM system.
④ 4: The estimated coverage distance is 40 m or less.
⑤ : All radio frequencies between 2,400 MHz
and 2,483.5 MHz are used and the frequencies for mobile object
identifiers can be avoided.
Available channels for the handset's wireless LAN are between 1 and
13. Note that other channel access points cannot be connected.
Available channels may vary depending on the country.
For use in an aircraft, contact the airline beforehand.
Cautions on using 2.4 GHz devices
WLAN-installed devices operate at radio frequencies
assigned to the in-house radio stations for a mobile object
identifier (radio stations requiring a license) used in
production lines of a factory, specific low power radio
stations (radio stations requiring no license), and amateur
radio stations (radio stations requiring a license) in addition
to industrial, scientific and medical devices or home electric
appliances such as microwave ovens.
1. Before using this device, make sure that the in-house
radio stations for a mobile object identifier, specific low
power radio stations and amateur radio stations are not
operating nearby.
2. If the device causes harmful radio interference to the in-
house radio stations for a mobile object identifier,
immediately change the radio frequency or stop use, and
contact the number listed in "General Inquiries" on the
last page for crosstalk avoidance, etc. (e.g. partition
setup).
3. If the device causes radio interference to specific low
power radio stations for a mobile object identifier or
amateur radio stations, contact the number listed in
"General Inquiries" on the last page for further details.
Cautions on using 5 GHz devices
In the 5 GHz frequency band, three bands of 5.2 GHz/5.3 GHz/
5.6 GHz band (W52/W53/W56) are available.
･ W52 (5.2 GHz band/36, 40, 44, 48 ch)
･ W53 (5.3 GHz band/52, 56, 60, 64 ch)
･ W56 (5.6 GHz band/100, 104, 108, 112, 116, 120, 124, 128,
132, 136, 140 ch)
Using 5.2 GHz/5.3 GHz band wireless LAN (W52/W53)
outdoors is prohibited by the Radio Law.
FeliCa and NFC reader/writer
The FeliCa, NFC reader/writer and P2P function of the
handset use weak radio waves whose handling does not
require a license of radio station.
The frequency in use is the 13.56 MHz band. When another
reader/writer or P2P function is being used nearby, keep
enough distance from it. Make sure that there is no radio
station using the same frequency band in the nearby area.
For use in an aircraft, contact the airline beforehand. Use of
the function may be restricted in some countries.
Check conditions such as regulations of the country/region
to use the function.
Caution
Never use the handset that is modified. Using a modified
device violates the Radio Law and/or the
Telecommunications Business Law.
The handset follows the regulations regarding the certification of
conformity with technical regulations for specific radio stations etc.
based on the Radio Law and authentication of conformity with technical
regulations for devices etc. based on the Telecommunications
Business Law, and the "Technical Conformity Mark " can be
displayed on the electronic nameplate of the handset as a proof. You
can see it by operating as follows.
In the home screen, [R]/[Settings]/[About phone]/[Authentication]
If the screws of the handset are removed and a modification is given to
the inside, the certification of conformity with technical regulations etc.
will become invalid. Never use the handset without the valid
certification etc. Doing so violates the Radio Law and/or the
Telecommunications Business Law.
Be careful when using the handset while driving a motor
vehicle.
Using the handset in hand while driving is regarded as a punishable
act.
However, the punishment has no application in some cases such as
when rescuing sick and injured people or maintaining public safety.
The FeliCa and NFC reader/writer function of the handset
conform to the domestic radio wave standards. When you
use it overseas, check conditions such as regulations of the
country/region in advance.
Never change the basic software improperly.
This may be regarded as a conversion of software and repairs may be
refused.