Contents/Precautions
17
・
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
Frequency bands for WLAN devices are written on
battery pack insert section of the terminal. Label
description are as follows.
a
2.4 : Radio equipment that uses the 2400 MHz band.
b
DS : The modulation is the DS-SS method.
c
OF : The modulation is the OFDM method.
d
4 : The expected interference distance is 40 m or
shorter.
e
: All bandwidths between 2400 MHz
and 2483.5 MHz are used, and the bandwidth used by
mobile object identification devices can be avoided.
Available channel varies by countries. To use WLAN
overseas, check the conditions such as available
frequency, regulation, etc. for the country.
To use in airplane, confirm with airline company in
advance.
Cautions on using 2.4 GHz devices
In the bandwidth used by WLAN devices, in addition
to home electric appliances such as a microwave oven
and industrial/scientific/medical devices, in-plant
radio stations for identification of mobile objects used
in production lines of a factory (a license is required),
specified low power radio stations (a license is not
required), or amateur radio stations (a license is
required) can be in operation.
1. Before using this device, confirm that in-plant radio
stations for identification of mobile objects,
specified low power radio stations or amateur
radio stations are not in operation in your
neighborhood.
2. If this device generates harmful radio wave
interference against in-plant radio stations for
identification of mobile objects, change the using
frequency promptly or stop using wireless LAN
function, and contact "General Inquiries" on the last
page of this manual, then consult about treatment
for prevention of the interference (for example,
installation of partitions etc.).
3. If this device generates harmful radio wave
interference against in-plant radio stations for
identification of mobile objects or amateur radio
stations, or if any trouble, contact "General
Inquiries" on the last page of this manual.
◆
FeliCa reader/writer
・
FeliCa reader/writer function of the terminal uses weak
waves requiring no licenses for radio stations.
・
It uses 13.56 MHz frequency band. When using other
reader/writers in your surroundings, keep the terminal
away sufficiently from them. Before using the FeliCa
reader/writer, confirm that there are no radio stations
using the same frequency band nearby.
2.4DS/OF4
a b
c
e
d
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