IBM 19K4543 User Manual page 29

RF frequency band
Number of selectable sub-
channels
Modulation technique
Spreading
Bit error rate (BER)
Nominal outout power
Wireless LAN Range
Range (100
bytes user
data) /
transmit rate
Open office
1
envrionment
Semi-open
office
2
environment
3
Closed office
Receiver
sensitivity
Delay spread
(at FER of
<1%)
High speed
11 MBps
160 m 270 m
(525 ft.) (886 ft.)
50 m 70 m
(164 ft.) (230 ft.)
25 m 35 m
(82 ft.) (115 ft.)
-83 dBm -87 dBm
65 ns 225 ns
2.4 GHz (2400 to 2500 MHz)
North America (FCC): 11
Europe (ETS): 13
France (FR): 4
Japan (JP): 1
Other countries: FCC: 11
Direct sequence spread spectrum (DSSS)
• CCK for high and medium tranmit
rates
• DQPSK for standard transmit rate
• DBPSK for low transmit rate
11-chip Barker Squence
-5
Better than 10
15 dBm
Medium Standard
speed
5.5 MBps 2 MBps
400 m
(1312 ft.)
90 m
(295 ft.)
40 m
(131 ft.)
-91 dBm
400 ns
Appendix A. Product specifications
ETS: 13
Low speed
speed
1 MBps
550 m
(1805 ft.)
115 m
(377 ft.)
50 m
(165 ft.)
-94 dBm
500 ns
A-3