Canon CXDI-80C Service Manual page 38

2. Channel setting flow
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.
2. Installation procedures
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?
N
Are there any interference-free channels
when set to HT20?
No interference present
N
Is any existing system being used with
HT40?
N
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.
Interference present
Fig.1
- 5 -
Y
Using HT40, select interference-free channels.
Y
Using HT20, select interference-free channels.
Y
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.