User's Guide Part 1

PureWave Quantum 6600 User Guide v2.1
Page 21
2.3.2.1 Receiver Sensitivity
Table 4 presents typical receiver sensitivity specs of the Quantum 6600 Base Station. Note that
sensitivity will be correspondingly less on models with fewer than 6 antennas. Note that the values
presented are measured over the entire channel bandwidth, as opposed to WiMAX Radio Conformance
Test (RCT) type measurements, which are measured over only a fraction of the channel bandwidth.
Typical 6-Ant Rx Sensitivity
AWGN, 10
-6
BER, Full Band, in dBm
UL MCS (CTC)
5MHz
10MHz
QPSK-1/2
-105.0
-102.0
QPSK-3/4
-102.0
-99.0
16QAM-1/2
-99.8
-96.8
16QAM-3/4
-96.1
-93.1
64QAM-1/2
-95.1
-92.1
64QAM-2/3
-90.9
-87.9
64QAM-3/4
-90.2
-87.2
64QAM-5/6
-87.0
-84.0
Table 4: Typical Rx Sensitivity
2.3.2.2 Computing EIRP Power
Effective Isotropic Radiated Power (EIRP) refers to the transmit power radiating out of the antenna. The
accurate computation of EIRP is essential to proper network planning and to ensuring that the system
meets local and regional maximum power regulations.
As indicated in Table 3, the average Tx power output at each Base Station antenna connector is 33dBm.
The average EIRP per antenna is computed as follows:
Ave EIRP per Ant (in dBm) = Ave Tx Pwr per Ant + Ant Gain – Cable and Connector Loss
For example, if deployed with a 14dBi antenna connected to the Base Station with only a few feet of
cable, the average EIRP per Antenna might be 33dBm + 14dBi – 1dB = 46dBm.
The total average EIRP of the Base Station with all antennas combined can then be computed as follows:
Total Ave EIRP (in dBm) = Ave EIRP per Ant + 10log (Number of Antennas)
For a 6 antenna Base Station, the example above yields Total Ave EIRP = 46dBm + 7.78dB = 53.78dBm.