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RF Specifications(US)
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Operating Frequency Range
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Frequency Channel
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Frequency Selection
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Bandwidth
!
Characteristic Impedance
!
Signal Level Range
!
Modulation
!
Symbol Rate
!
Maximum Bit Rate
!
Forward Error Correction (FEC)
!
Bit Error Rate (BER)
Wireless LAN
!
Data Encryption
!
Standard Compliance
!
Operating Frequency Range
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Modulation
!
Regulation Domain
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Numbers of selectable channels
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Antenna
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Media Access Protocol
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Tx Data Rate
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Range in Open Space
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Range in Closed Office
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Receiver Sensitivity
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Downstream
88-860MHz
HRC, IRC, STD
Auto Scanning
6MHz
75Ω Nominal
-15 to +15dBmV/64QAM
-15 to +15dBmV/256QAM
64QAM/256QAM
5.056941/5.360537
Msym/sec
42.88Mbps/256QAM
30.34Mbps/64QAM
RS (128,122)/Trellis
-8
1×10
-8
1×10
+15dBmV
-8
1x10
6dBmV
64/128 bit WEP
IEEE 802.11b
2.4GHz (2400-2483.5MHz) ISM Band
N.America/FCC: 2.412~2.462GHz (11Channels)
Europe CE/ETSI: 2.412~2.472GHz (13Channels)
Japan : 2.412~2.484GHz (14Channels)
2.4 GHz Direct Sequence Spread Spectrum (DSSS) ,
CCK(11Mbps)
FCC / ETSI / IC / Spain / France / Telec
Up to 14 (depend on Regulation Domain)
2 internal PCB antenna
CSMA/CA with ACK for uni-cast data frame
CSMA/CA for multi-cast/broadcast data frame
11 Mbps, Auto Fall-Back
11Mb/100m
11Mb/35m
-80 dbm @ 11Mbps
s
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@ C/N=23.5dB, 64QAM with FEC
@ C/N=30dB, 256QAM with FEC, received power = -6dBmV to
@ C/N=33dB, 256QAM with FEC, received power = -15dBmV to –
Appendix: Specifications
Upstream
5-42MHz
Controlled by Head end
Programmable (200*N KHz)
N=1, 2, 4, 8, 16
75Ω Nominal
+8 to +58dBmV/QPSK
+8 to +55dBmV/16QAM
QPSK/16QAM
160/320/640/1280/2560
Ksym/sec
10.24Mbps/16QAM
5.12Mbps/QPSK
Reed Solomon
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