User Manual Part 2

8
Radio Characteristic Specifications
R-F Frequency Band 2.4 GHz (2400-2500 MHz)
Number of selectable
sub-channels
North America (FCC) 11
Europe (ETS) 11
France (FR) 2
Japan (JP) 11
Other Countries: 11
Modulation
Technique
Direct Sequence Spread Spectrum
CCK for High & Medium Transmit Rate
DQPSK for Standard Transmit Rate
DBPSK for Low Transmit Rate
Spreading 11-chip Barker Sequence
Bit Error Rate (BER)
Better than 10
-5
Nominal Output
Power
15 dBm
Range (100 bytes
User Data) /
Transmit Rate
High Speed
11 Mb/s
Medium
Speed
5.5 Mb/s
Standard
Speed
2 Mb/s
Low Speed
1 Mb/s
Open Office
Environment
160 m
(525 ft.)
270 m
(885 ft.)
400 m
(1300 ft.)
550 m
(1750 ft.)
Semi-Open Office
Environment
50 m
(165 ft.)
70 m
(230 ft.)
90 m
(300 ft.)
115 m
(375 ft.)
Closed Office 25 m
(80 ft.)
35 m
(115 ft.)
40 m
(130 ft.)
50 m
(165 ft.)
Receiver Sensitivity -83 dBm -87 dBm -91 dBm -94 dBm
Delay Spread (at
FER of <1%)
65 ns 225 ns 400 ns 500 ns
WireLAN.book Page 8 Tuesday, February 5, 2002 4:02 PM