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Radio frequencies used by the wireless
card
The accessory wireless card and the optional wireless card (ET-CDWL1 series)
operate on electronic frequencies within the 2.4 GHz band. You do not need a radio
licence in order to use a wireless card, but you should make sure that you
understand the following points before using such cards.
Do not use the cards near other sources of radio
emissions.
The following devices may use the same frequencies that are used by the
wireless card. If the wireless card is used near such devices, radio
interference may prevent successful communication, or it may result in
slower communication speeds being achieved.
•
Industrial, scientific, medical equipment, etc
•
Electric stoves, etc
•
Built-in radio devices used for identifying moving equipment in industrial
production lines
•
Certain low-power radio devices
Keep the wireless card as far away as possible
from devices such as mobile telephones, TVs and
radios when using such devices
Devices such as mobile telephones, TVs and radios use different
frequencies from the wireless card, so that there will be no effect on either
wireless card communication or on reception or transmission for such
devices. However, radio emissions from the wireless card may cause video
or audio interference.
Radio emissions from the wireless card will not
travel through steel framework, metal sheets or
concrete.
The radio emissions from the wireless card will pass through materials such
as wood and glass (except for glass which is reinforced with metal fibres), so
that communication is possible because the signals can pass through walls
and floors which are made from these materials. However, the radio
emission cannot pass through materials such as steel frames, metal sheets
and concrete, so that communication is not possible because the signals
cannot pass through walls and floors which are made from such materials.
