F-7
APPENDIX F
Media Access CSMA/CA (Collision Avoidance) with
Protocol Acknowledgment (ACK)
Data Rate n High 11 Mb/s
n Medium 5.5 Mb/s
n Standard 2 Mb/s
n Low 1 Mb/s
The cards use an automatic Transmit Rate Select
mechanism.
Radio characteristics
Radio characteristics of Wireless LAN cards may vary according to:
◆ Country/region where the product was purchased
◆ Type of product
Wireless communication is often subject to local radio regulations. Although
Wireless LAN networking products have been designed for operation in the
license-free 2.4 GHz band, local radio regulations may impose limitations on the use
of Wireless communication equipment.
NOTE: Refer to the flyer Information to the User for regulatory informa-
tion that may apply in your country/region.
Table F-4 Radio characteristics
R-F Frequency Band 2.4GHz (2400-2483.5 MHz)
Modulation Technique Direct Sequence Spread Spectrum
n CCK for High & Medium Transmit Rate
n DQPSK for Standard Transmit Rate
n DBPSK for Low Transmit Rate
Spreading 11-chip Barker Sequence
Bit Error Rate (BER) Better than 10
-5
Nominal Output Power 15 dBm
Transmit Rate High Medium Standard Low
Speed Speed Speed Speed
11 Mb/s 5.5 Mb/s 2 Mb/s 1Mb/s
Receiver Sensitivity -83 dBm -87 dBm -91 dBm -94 dBm
Delay Spread 65 ns 225 ns 400 ns 500 ns
(at FER of <1%)
Appendix F
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