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BreezeMAX Modular Base Station System Manual 165
For all other Channels (2-4) the Associated ODU is NA.
Downlink (Tx) Frequency (MHz): 3551.750
Admin Status: Enabled for Channel 1, Disabled for all other Channels (2-4).
4.9.5.3.3.2 Diversity Mode
The Diversity Mode of the AU. For details on diversity modes refer to “Base Station
Radio Configurations” on page 8.
The available options are:
1 - No Diversity
2 - Second Order Diversity
3 - Fourth Order Diversity for NLOS
4 - Fourth Order Diversity for LOS and NLOS
Each of the Fourth Order Diversity modes uses a different downlink diversity
scheme optimally adapted to the different propagation conditions prevailing in the
relevant deployment scenario. Fourth Order Diversity for NLOS should typically
be used when all or most of the SUs operate in Non-Line-Of-Sight (NLOS)
conditions (typical to CPE Si units). Fourth Order Diversity for LOS and NLOS
mode will provide better overall performance in deployments where there are SUs
operating in both Line-Of-Sight (LOS) conditions (expected for most CPE-PRO S
units) and Non-Line-Of-Sight (NLOS) conditions.
The default is No Diversity.
4.9.5.3.3.3 Select
Use this option to select a Channel ID (1-4) to open the Channel # menu for
viewing or updating the Channel's parameters. The configurable Channel
parameters are:
Associated ODU: An ODU ID (1-24) of an already defined ODU.
Downlink (Tx) Frequency (MHz): The Tx frequency in MHz, which must be in
accordance with the selected Bandwidth (see Section 4.9.5.3.2.1) and the rules
NOTE
A change in the Diversity Mode parameter takes effect immediately and automatically resets the
AU. It also disables the Admin Status of all its channels when changing from No Diversity to Second
Order/Fourthe Order Diversity and vice versa. When changing from Fourth Order Diversity to
Second Order Diversity, it disables the Admin Status of Channels 3 and 4.