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. The most common wireless networking standard, 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

 

 

 

Technology

802.11b

802.11g

802.11a

Speed

11Mbps

54Mbps

54Mbps

 

 

 

 

 

Common

Common

 

 

household

household

 

 

devices such as

devices such as

 

 

cordless phones

cordless phones

5GHz -

Frequency

and microwave

and microwave

uncrowded

 

ovens may

ovens may

band

 

interfere with the

interfere with the

 

 

unlicensed band

unlicensed

 

 

2.4 GHz

band 2.4 GHz

 

 

 

 

 

 

Compatible

Compatible

Incompatible

Compatibility

with 802.11b

 

with 802.11g

with 802.11b

or 802.11g

 

 

 

 

 

 

 

 

Depends on

Depends on

Less

 

interference -

 

interference -

interference -

Range

range is

typically 100–200

typically 100–200

 

ft. indoors

ft. indoors

typically

 

50-100 feet

 

 

 

 

 

 

 

 

 

 

Slow adoption

 

Mature –

Expected to

for consumers -

Adoption

continue to grow

more popular in

widely adopted

 

in popularity

business

 

 

 

 

 

environments

 

 

 

 

Price

Inexpensive

More expensive

Most expensive

 

 

 

 

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Belkin F5D7011 manual What’s the difference between 802.11b, 802.11g and 802.11a?, Wireless Comparison