User Manual

1 Overview
Base Station User Guide 11
System Configuration Description
The following table describes the system configuration.
Parameter One-Sector Two-Sector Three-Sector
Number of Sectors 1 2 3
Number of Downstream
Channels
1 2 3
Downstream Channel Width 330 KHz
(245 KHz optional)
330 KHz
(245 KHz optional)
330 KHz
(245 KHz optional)
Downstream Channel
Modulation
64QAM typ.
(QPSK, 16QAM,
256QAM optional)
64QAM typ.
(QPSK, 16QAM,
256QAM optional)
64QAM typ.
(QPSK, 16QAM,
256QAM optional)
Downstream Channel
Frequencies
757.170, 757.5,
757.830 MHz
757.170, 757.5,
757.830 MHz
757.170, 757.5,
757.830 MHz
Number of Upstream Channels 1 2 3
Upstream Channel 1 Port
Assignment
1 & 2 with
diversity
1 & 2 with diversity 1 & 2 with diversity
Upstream Channel 2 Port
Assignment
NA 3 & 4 with diversity 3 & 4 with diversity
Upstream Channel 3 Port
Assignment
NA NA 5 & 6 with diversity
Upstream Channels Bandwidth 325 KHz 325 KHz 325 KHz
Upstream Channels Modulation 16 QAM 16 QAM 16 QAM
Upstream Channels
Frequencies
787.170, 787.5,
787.830 MHz
787.170, 787.5,
787.830 MHz
787.170, 787.5,
787.830 MHz
Downstream 4 frequencies configuration:
The Downstream can be configured also for 4 separated narrower channels of 245 KHz.
Each sector can be configured to each of the following frequencies:
Downstream Channel Bandidth 245 KHz
Downstream Channel Frequencies 757.1325, 757.3775, 757.6225, 757.8675 MHz