User Manual Part 2

Wireless Nd1 Router User Guide
Transmission
The fields in this area are for more advanced wireless features that most people do not need
to change. If you do want to change any of these settings, write down the default settings
before you make any changes in case you experience any problems and need to change
these settings back.
Control and Extension Channels
Control and the secondary extension channels are only applicable if your router is operating
at 40 MHz bandwidth and the 802.11n mode is configured as Automatic.
For US channels:
Control Channel Sideband Extension Channel
1 - 7 Lower Channel number + 4
5 - 11 Upper Channel number - 4
For European channels:
Control Channel Sideband Extension Channel
1 - 9 Lower Channel number + 4
5 - 13 Upper Channel number - 4
Example: If your control channel is set to 1, the extension channel will be
transmitted on channel 5. The total bandwidth of the signals on channel 1 and 5
equals 40 MHz.
Example: If your control channel is set to 11, the extension channel will be
transmitted on channel 6. The total bandwidth of the signals on channel 11 and
7 equals 40 MHz.
file:///G|/CSO/Documentation/Documentation%20-%20Dra...20Mach-1%20Router/User%20Guide/English/wireless.html (9 of 13)9/14/2006 2:44:31 PM