Troubleshooting

What’s the difference between 802.11b, 802.11g and 802.11a?

Currently there are three 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. 802.11b transmits information at 11Mbps; 802.11a and 802.11g work at 54Mbps. See the following chart for more detailed information.

Wireless Comparison

Wireless

802.11b

802.11g

802.11a

Technology

 

 

 

 

 

 

 

Speed

11Mbps

54Mbps

54Mbps

 

 

 

 

 

Common

Common

 

 

household devices

household devices

 

 

such as cordless

such as cordless

 

Frequency

phones and

phones and

5GHz - uncrowded

microwave ovens

microwave ovens

band

 

 

may interfere with

may interfere with

 

 

the unlicensed

the unlicensed

 

 

band - 2.4GHz

band - 2.4GHz

 

 

 

 

 

 

Compatible with

Compatible with

Incompatible with

Compatibility

802.11b or

802.11g

802.11b

 

802.11g

 

 

 

 

 

 

 

 

Depends on

Depends on

Less interference -

 

interference -

interference -

Range

range is

typically 100–200

typically 100–200

 

typically 50-100 feet

 

ft. indoors

ft. indoors

 

 

 

 

 

 

 

 

 

Slow adoption for

 

Mature - widely

Expected to

consumers -

Adoption

continue to grow

more popular in

adopted

 

in popularity

business

 

 

 

 

 

environments

 

 

 

 

Price

Inexpensive

More expensive

Most expensive

 

 

 

 

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Belkin F5D7050 user manual What’s the difference between 802.11b, 802.11g and 802.11a?, Wireless Comparison