ADTRAN AOS Version R10.1.0 Command Reference Manual page 2827

Command Reference Guide
radio-mode
Use the radio-mode command to set a specific radio type. Use the no form of this command to return to
the default value. Variations of this command include the following:
radio-mode a
radio-mode b
radio-mode bg
radio-mode g
Syntax Description
a
b
bg
g
Default Values
By default, the 802.11bg radio is set to radio-mode bg and the 802.11a radio is set to radio-mode a.
Command History
Release 15.1
Functional Notes
ADTRAN currently supports three of the IEEE 802.11 wireless local area network (WLAN) standards:
802.11a, 802.11b, and 802.11g. Each access point (AP) contains two integrated radios: one that supports
802.11a and one that supports 802.11b and/or 802.11g.
802.11b is a legacy protocol operating at 2.4 GHz with a maximum throughput of 11 Mbps. This throughput
value is derived from the use of direct sequence spread spectrum (DSSS) technology for transmission.
The North American channel set contains 11 channels, each 22 MHz wide. Out of these 11 channels, there
are only three nonoverlapping or noninterfering channels. The use of three discreet access points (APs) in
the same area, each set to one of the three nonoverlapping channels, will result in an aggregate bandwidth
of 33 Mbps. The theoretical maximum distance for 802.11b is 100 meters. However, the actual distance is
approximately 60 meters in a typical office environment.
802.11g operates at 2.4 GHz with a maximum throughput of 54 Mbps. The obvious benefit to using
802.11g over 802.11b is faster data transmission. The higher maximum throughput is achieved by using
orthogonal frequency division multiplexing (OFDM) in addition to DSSS for transmission. 802.11g is
backwards-compatible to 802.11b, helping to ease migration from an existing 802.11b network to an
802.11g network. However, the maximum throughput for an 802.11g network is reduced when operating in
backwards-compatibility mode with 802.11b. The North American channel set for 802.11g contains
11 channels, each 22 MHz wide. Out of these 11 channels, there are only three nonoverlapping or
noninterfering channels. The use of three discreet APs in the same area, each set to one of the three
nonoverlapping channels, will result in an aggregate bandwidth of 162 Mbps. The theoretical maximum
distance for 802.11g is 100 meters. However, the actual distance is approximately 75 meters in a typical
office environment.
60000CRG0-35E
Specifies radio type a.
Specifies radio type b.
Specifies radio type g in backwards-compatible mode to radio type b.
Specifies radio type g.
Command was introduced.
Copyright © 2012 ADTRAN, Inc.
Radio Interface Command Set
2827