Netgear WC7520 - ProSafe 20-AP Wireless Controller Manual De Referência

If automatic channel allocation is enabled on the Channel Allocation 

on page 99), you cannot configure 

the wireless settings on the Basic Wireless Settings screen. You 
need to disable automatic channel allocation to be able to configure 
the wireless settings.

You cannot configure the wireless settings if there are no access 

points assigned to a radio in a profile group.

Configure the settings as explained in the following table:

Wireless Mode

The selections that are available depend on the selected radio mode. 
From the drop-down list select the wireless mode:

• 802.11b/bg/ng mode:

- 11ng. This is the default setting.

- 11bg. 

- 11b. 

• 802.11a/na mode:

- 11na. This is the default setting.

- 11a. 

If you select 802.11bg or 802.11b mode, both 802.11n- and 

802.11g-compliant devices can connect to the access points. However, 
if you select 802.11ng mode, 802.11b-compliant devices cannot 
connect.

Data Rate

From the drop-down list, select the available transmit data rates of the 
wireless network.

Channel Width

 

(802.11n only)

From the drop-down list, select the available channel width. A wider 
channel improves the performance, but some legacy devices can 
operate only in either 20 MHz or 40 MHz.

Guard Interval

 

(802.11n only)

From the drop-down list, select a value that protects transmissions from 
interference. A shorter guard interval improves performance, but some 
legacy devices can operate only with a long guard interval.