Canon AX-C4343W, Technical Document

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Appendix — Technical description —
81
5.1.5.3.3 Concerning the effects from existing wireless LAN systems
When checking out the channels used by the existing wireless LAN system, the effect on
the image transfer time is believed to be minimal at a signal strength of around -70 dBm.
However, since this value of -70 dBm is a rough value obtained from experiments, it is
essential that images be transferred and that it be checked that there are no effects.
Particular care is required when the frequencies used overlap in part because the resulting
effects may be significant.
Y
N
N
N
Y
Y
start
Consult with wireless system
administrator.
If consultation is not possible, follow
the flow below.
Check out the existing
wireless LAN environment.
Are there any
interference-free channels
when set to HT40?
As a general guide to
determine that there will
be no interference, it can
be assumed that
interference will be
minimal at a signal
strength of -70 dBm or
below.
Select the settings and
check for any effects of
communication.
Are there any
interference-free channels
when set to HT20?
Using HT40,
select interference-free channels.
Using HT20,
select interference-free channels.
No interference present
Is any existing system being
used with HT40?
Use HT20 to select the channels
of HT20 in the existing system.
If there is a multiple number of
candidates, measure the
communication time of each,
and decide on the channels.
Use HT40 to select the same
channels as HT40 in the existing
system, and check out the
communication speed.
Use HT20 to select the channels
of HT20 in the existing system,
and check out the
communication speed.
Select settings which yield a stable
communication speed.
Interference present
Fig.1: Channel setting flow
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