User's Manual

Alpha Networks Proprietary and Confidential Information
5
2.2 General Requirements
2.2.1 IEEE 802.11b Section
# Feature Detailed Description
2.2.1.1 Standard

IEEE 802.11b
2.2.1.2 Radio and
Modulation
Schemes
 DQPSK, DBPSK, DSSS, and CCK
2.2.1.3 Operating
Frequency

2400 ~ 2497MHz ISM band
2.2.1.4 Channel Numbers

11 channels for United States
13 channels for Europe Countries
14 channels for Japan
2.2.1.5 Data Rate

11, 5.5, 2, and 1Mbps
2.2.1.6 Media Access
Protocol

CSMA/CA with ACK
2.2.1.7 Transmitter Output
Power

Typical RF Output Power at each RF chain, Data Rate
and at room Temp. 25degree C( tolerance
±
2dB) under
3.3VDC operating voltage

18dBm at 11, 5.5, 2, and 1Mbps
2.2.1.8 Receiver Sensitivity

Typical –84dBm for 11Mbps @ 8% PER

Typical –90dBm for 2Mbps @ 8% PER
2.2.2 IEEE 802.11g Section
# Feature Detailed Description
2.2.2.1 Standard

IEEE 802.11g
2.2.2.2 Radio and
Modulation
Schemes

BPSK, QPSK, 16QAM, 64QAM, and OFDM
2.2.2.3 Operating
Frequency

2400 ~ 2483.5MHz ISM band
2.2.2.4 Channel Numbers

11 channels for United States
13 channels for Europe Countries
13 channels for Japan
2.2.2.5 Data Rate

6,9,12,18,24,36,48,54Mbps
2.2.2.6 Media Access
Protocol

CSMA/CA with ACK
2.2.2.7 Transmitter Output
Power

Typical RF Output Power at each RF chain, Data Rate
and at room Temp. 25degree C (tolerance
±
2dB) under
3.3VDC operating voltage

19dBm at 6~24 Mbps

17dBm at 36 Mbps

16dBm at 48 Mbps
 15dBm at 54 Mbps
2.2.2.8 Receiver Sensitivity

Typical Sensitivity at Which Frame (1000-byte PDUs)
Error Rate = 10%

–86dBm at 6Mbps

–86dBm at 9Mbps

–84dBm at 12Mbps

–82dBm at 18Mbps

–78dBm at 24Mbps

–75dBm at 36Mbps

–71dBm at 48Mbps