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Modulation Technique Direct Sequence Spread Spectrum
Range/Transmit Rate
Open Office
Semi-Open Office
Closed Office
Receiver Sensitivity
(Bit Error Rate 10-
Delay Spread
(FER of <1%)
The range of the wireless signal is related to the Transmit Rate of
the wireless communication. Communications at lower Transmit
Rates will travel larger distances.
The range of your wireless devices can be affected when the
antennas are placed near metal surfaces and solid high-density
materials.
Range is also impacted due to "obstacles" in the signal path of
the radio that may either absorb or reflect the radio signal.
The listed range values listed are typical distances as measured at
the Compaq laboratories. These values may provide a rule of
thumb for indoor installations, and may vary according to the
actual radio conditions at the location where the product will be
installed.
In Open Office environments, antennas can "see" each other,
i.e. there are no physical obstructions between them.
In Semi-open Office environments, work space is divided by
shoulder-height, hollow wall elements; antennas are at
desktop level.
In Closed Office environments, work space is separated by
floor-to-ceiling brick walls.
User's Guide
CCK
11 Mb/s
160 m
(525 ft.)
50 m
(165 ft.)
25 m
(80 ft.)
-82 dBm
5)
65 ns
CCK
5.5 Mb/s
2 Mb/s
270 m
(885 ft.)
70 m
(230 ft.)
35 m
(115 ft.)
-87 dBm
225 ns
Specifications
DQPSK
DBPSK
1 Mb/s
400 m
550 m
(1300 ft.)
(1750 ft.)
90 m
115 m
(300 ft.)
(375 ft.)
40 m
50 m
(130 ft.)
(165 ft.)
-91 dBm
-94 dBm
400 ns
500 ns
A-3
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