Chapter 3: Manage Menu

Table 3. Modify Radio Settings Window (Continued)

Parameter

Description

 

 

 

 

Short Guard Interval

Specifies the dead time interval, in

Supported

nanoseconds, between OFDM symbols.

 

The guard interval prevents Inter-Symbol

 

and Inter-Carrier Interference (ISI, ICI).

 

The 802.11n mode supports a reduction in

 

the interval from 800 nanoseconds,

 

defined in the a and g standards, to 400

 

nanoseconds. This may provide up to a

 

10% improvement in data throughput. The

 

selections are described here:

 

- Yes: The access point uses a 400 ns

 

guard interval when communicating with

 

clients that also support the feature. This

 

is the default setting.

 

- No: The access point uses an 800 ns

 

guard interval.

 

This parameter is only available with the

 

802.11n modes.

 

 

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Allied Telesis AT-TQ2450 manual Parameter Description