Troubleshooting

What is the difference between 802.11b, 802.11g, 802.11a, and Pre-N?

Currently there are four levels of wireless networking standards, which transmit data at very different maximum speeds. Each is based on the designation 802.11(x), so named by the IEEE, the board that is responsible for certifying networking standards. The most common wireless networking standard, 802.11b, transmits information at 11Mbps; 802.11a and 802.11g work at 54Mbps; and Pre-N works

at 108Mbps. Pre-N, the precursor to the upcoming 802.11n release, promises speeds that exceed 802.11g, and up to twice the wireless coverage area. See the following chart for more detailed information.

Wireless Comparison Chart

Wireless Technology

802.11b

802.11g

802.11a

Belkin Pre-N

 

 

 

 

 

Speed

 

 

 

600% faster

11Mbps

54Mbps

54Mbps

than standard

 

 

 

 

802.11g*

 

Common

Common

 

Common

 

household

household

 

household

Frequency

devices such as

devices such as

 

devices such as

cordless phones

cordless phones

5GHz—

cordless phones

 

 

and microwave

and microwave

uncrowded

and microwave

 

ovens may

ovens may

band

ovens may

 

interfere with the

interfere with the

 

interfere with the

 

unlicensed band

unlicensed

 

unlicensed

 

2.4GHz

band 2.4GHz

 

band 2.4GHz

 

 

 

 

 

Compatibility

Compatible

Compatible

Incompatible

Compatible with

 

 

with 802.11b

802.11g

 

with 802.11g

with 802.11b

 

or 802.11g

or 802.11b

 

 

 

 

 

 

 

 

Coverage*

Depends on

Depends on

Interference

Up to 800%

 

 

interference—

interference—

wider coverage

 

range is typically

 

typically 100–200

typically 100–

than standard

 

ft. indoors

200 ft. indoors

50–100 ft.

802.11g*

 

 

 

 

 

 

 

Advantage

 

Common—

Less

 

 

interference—

Leading edge—

 

 

 

Mature—legacy

widespread

 

great for

best coverage

 

technology

use for Internet

 

multimedia

and throughput

 

 

sharing

 

 

application

 

 

 

 

 

*Distance and connection speeds will vary depending on your networking environment.

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Belkin F5D7632UK4 user manual Wireless Comparison Chart, 802.11b 802.11g 802.11a Belkin Pre-N