Alvarion BreezeNET B System Manual page 24

Chapter 1 - System Description
Item
Sensitivity, typical (dBm at
antenna port, PER<10%,
20 MHz bandwidth
Modulation
1
The actually available frequency channels and bandwidth are defined by the selected Sub-Band, which
reflects the applicably regulatory constraints. For more details refer to section 4.2.2.4).
2
In 5.4 GHz units with a detached antenna, if the gain of the antenna (as inserted into Antenna gain field) is
higher than 30 dBm, then the Maximum EIRP can vary by more than +/-3 dB. Since regulations in most
countries limit the EIRP of units operating in the 5.4 GHz band, it is recommended to use detached antennas
up to and including 28 dBi.
3
The actually available maximum output power for each modulation level is defined by the selected Sub-
Band, which reflects the applicably 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
HW and Country Code limitations, see the Country Codes document.
4
The sensitivity values are for a bandwidth of 20 MHz. When using a 40 MHz bandwidth ("Turbo mode"), the
Sensitivity for each modulation level is higher by 3 dB.
5
Modulation Level indicates the radio transmission rate and the modulation scheme. Modulation Level 1 is
for the lowest radio rate and modulation scheme.
6
Table 1-3: Radio Specifications
Description
Modulation Level
4
)
1
2
3
4
5
6
7
8
OFDM modulation, 64 FFT points; BPSK, QPSK,
QAM16, QAM64
4.2.2.4
5
Sensitivity Min. SNR
-89 dBm 6 dB
-88 dBm 7 dB
-86 dBm 9 dB
-84 dBm 11 dB
-81 dBm 14 dB
-77 dBm 18 dB
-73 dBm 22 dB
-71 dBm 23 dB
and to section 4.2.6.2.8.1. For information on specific
BreezeNET B System Manual