Appendix F

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 information 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%)

 

 

 

 

F PPENDIXA

F-7