User`s guide

Introduction to the Aironet PCMCIA Wireless LAN Adapter xiii
Openness of the Environment - Open areas are better than closed
The less cluttered the work environment, the greater the range.
Building Materials - Drywall vs Concrete
Floor-to-floor radio penetration depends on the building materials used
between floors. For example, the range will be greater if the signal is
passing through drywall rather than concrete blocks.
Table 0.1 provides a summary of typical radio ranges to be expected for
different situations.
Table 0.1 - Typical Radio Range
Radio Antenna
The PCMCIA Radio Module comes supplied with an integrated dipole
antenna and provides omni-directional (360 degree) coverage.
Security Features
The Aironet Client Card provides secure and highly reliable data com-
munications by employing Spread Spectrum Technology, previously
developed for military “anti-jamming” and “low probability of inter-
cept” radio systems.
Indoor Range Aironet PC1200 Aironet PC2200
All antennas at
desktop height
Open Office 76m to 122m
(250 to 400 feet)
38m to 61m
(125 to 200 feet)
Cluttered Office
45m to 76m
(150 to 250 feet)
23m to 38m
(75 to 125 feet)
Central antenna
elevated 6 feet
Open Office
91m to 182m
(300 to 600 feet)
45m to 91m
(150 to 300 feet)
Cluttered Office
61m to 91m
(200 to 300 feet)
30m to 45m
(100 to 150 feet)