Alvarion BREEZEACCESS SW VERSION 5.1 User Manual
Page 51
Specifications
System Description
19
Table 1-7: Radio Specifications
Item
Description
Sensitivity, Minimum (dBm at
antenna port, PER<10%,
20 MHz bandwidth
3
)
Modulation
Level
4
Sensitivity
(HW Rev. A)
Sensitivity
(HW Rev. B
and higher)
Minimum SNR
1
-87 dBm
-89 dBm
6 dB
2
-86 dBm
-88 dBm
7 dB
3
-85 dBm
-86 dBm
9 dB
4
-83 dBm
-84 dBm
11 dB
5
-80 dBm
-81 dBm
14 dB
6
-76 dBm
-77 dBm
18 dB
7
-71 dBm
-73 dBm
22 dB
8
5
-69 dBm
-71 dBm
23 dB
Modulation
OFDM modulation, 64 FFT points; BPSK, QPSK, QAM16, QAM64
1
The actual available frequency channels and bandwidth are defined by the selected Sub-Band, which reflects the
applicable regulatory constraints. For more details refer to section
4.2.2.4
).
2
The actual maximum available output power for each modulation level is defined by the selected Sub-Band, which
reflects the applicable regulatory constraints. For some countries the power may also be limited by limitations on
the maximum EIRP (also included in the Sub-Band parameters) and the Antenna Gain parameter. For more details
refer to section
4.2.2.4
and to section
4.2.6.2.8.1
. For information on specific HW and Country Code limitations, see
the Country Codes document.
3
The sensitivity values are for a bandwidth of 20 MHz. When using a 10 MHz bandwidth, the sensitivity for each
modulation level is 3 dB lower. For a 5 MHz bandwidth (900 MHz band) the sensitivity for each modulation level is 6
dB lower.
4
Modulation Level indicates the radio transmission rate and the modulation scheme. Modulation Level 1 is for the
lowest radio rate and modulation scheme.
5
Modulation Level 8 is supported only in units with HW Revision B and above.