Radwin Ltd. BFJET5X 用户手册
RADWIN 5000 Installation Guide
Release 4.9.30
C‐3
Scope of this Appendix
The advantages in this mode in comparison to using a single antenna in both sites are
doubled total Tx Power and additional polarization and/or space diversity (depending on the
polarization of installed antennas).
doubled total Tx Power and additional polarization and/or space diversity (depending on the
polarization of installed antennas).
The air rates used in this mode are same as when using single antennas in both sites.
Site A and B may be HBS or HSU.
C.3 Considerations for Changing Antenna
Parameters
Parameters
Let:
max Available Tx Power denote the maximum Tx Power practically available from an ODU. (It
appears as Tx Power per Radio.)
appears as Tx Power per Radio.)
maxRegEIRP denote the maximum EIRP available by regulation. It will be determined by
three factors:
three factors:
•
per band/regulation
•
per channel bandwidth
•
antenna gain
maxRegTxPower denote the maximum regulatory Tx Power for the equipment, also having
regard the above three points.
regard the above three points.
Then, the following relationship must be satisfied:
... (*)
The Tx Power (per radio) indicates the power of each radio inside the ODU and is used for Link
Budget Calculations. The Tx Power (System) shows the total transmission power of the ODU
and is used to calculate the EIRP according to regulations.
Budget Calculations. The Tx Power (System) shows the total transmission power of the ODU
and is used to calculate the EIRP according to regulations.
Table C‐1: Spatial Multiplexing ‐ Diversity settings
Number of
Antennas
Mode
Max Full
Duplex
Capacity
Site A
Site B
Site A
Site B
2
2
Spatial
Multiplexing
Multiplexing
Spatial
Multiplexing
Multiplexing
50 Mbps
Diversity
Diversity
25 Mbps
2
1
Diversity
Single
25 Mbps
1
2
Single
Diversity
25 Mbps
1
1
Single
Single
25 Mbps
maxAvailableTxPower
min maxRegEIRP
AntennaGain
CableLoss maxRegTxPower
+
–
(
)