Gateway Profile Profile 5 User Manual page 96

Important
Important
Wireless Ethernet speed and frequency
Wireless Ethernet is available at two different speeds and at two different frequencies. The
following table compares the various wireless Ethernet network types.
Network Type
IEEE 802.11a
IEEE 802.11b
90
If your computer came equipped with an internal radio frequency
wireless device, see "Safety, Regulatory, and Legal Information" in
your user's guide for general wireless regulatory and safety
guidelines. To find out if your computer has an internal wireless
device, check the device manager. For more information, see
"Determining if wireless Ethernet is already installed on your
computers" on page 93.
Note any antenna placement constraints in the user guide of each
type of wireless device in your network.
Speed Frequency
54 Mbps 5 GHz
11 Mbps 2.4 GHz
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Advantages
Less possible
interference than
IEEE 802.11b and
IEEE 802.11g
Large number of
■
access points
already exist in
airports, college
campuses, and
businesses
Compatible with
■
IEEE 802.11g
networks
Longer range (100
■
to 150 feet) than
IEEE 802.11a
Disadvantages
Shorter range (25
■
to 75 feet) than
IEEE 802.11b and
IEEE 802.11g
Not compatible
■
with
IEEE 802.11b or
IEEE 802.11g
networks
Possible
■
interference from
cordless
telephones and
microwaves
Not compatible
■
with
IEEE 802.11a
networks