Docomo DIGNO KY-41B, Инструкция по эксплуатации, Страница: 24 / 167

Notes about wireless LAN (WLAN)
„
A wireless LAN (WLAN) exchanges information using
radio waves, and allows you to freely establish a LAN
connection if you are within an area where radio
waves reach. However, communication without
appropriate security settings may allow
communication to be intercepted by malicious parties.
It is recommended to make security settings, and is
at your discretion.
„
DOCOMO is not responsible for any information which
may be leaked during communication via wireless
LAN.
z
Wireless LAN
Do not use where there are devices with magnetic
fields (electrical products, AV/OA equipment, etc.) or
where there is an electromagnetic field.
Magnetic fields may increase electrical noise or may
affect communication (especially when using a
microwave oven).
It may interfere with reception if near a TV, radio,
etc., or the TV screen may become unviewable.
If multiple wireless LAN access points using the
same channel are in proximity, handset may not
detect access points correctly.
z
Frequency bands
To check frequencies the handset wireless LAN
function uses: In the standby screen,
z
▶ [Settings] ▶
[About phone] ▶ [Compliance information]. Label
markings are as follows.
① ②③
⑥
④⑤
① 2.4: Radio equipment using the 2,400 MHz band.
② DS: The modulation system is the DS-SS system.
③ 4: Expected maximum interference range of about
40 m.
④ OF: OFDM modulation.
⑤ 4: Expected maximum interference range of about
40 m.
⑥ : Utilizes 2,400 MHz to 2,483.5 MHz
band with mobile device bandwidth differentiation.
Use wireless LAN (WLAN) within Japan.
Before using aboard an aircraft, check with the airline
beforehand.
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Cautions on using 2.4 GHz devices
WLAN devices use the same frequency band used by
household appliances (microwave ovens) and industrial,
scientific, and medical equipment as well as by
premises radio stations (requiring a license) and
specific low-power radio stations (not requiring a
license) for mobile identification as used in production
lines, and by amateur radio stations (requiring a
license).
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Contents/Precautions