User's Manual Part 2

Tsunami Multipoint Version 1.3 Installation Guide
Monitor the Es/No ratio (Es/No reports the energy per symbol-to-noise spectral density ratio (in dB)).
Low Es/N0 or varying Es/N0 can indicate path or interference problems. The Es/No requirement varies
based on the modulation mode:
20 Mbps: Es/No > 4 + IPC value
30 Mbps: Es/No > 5 + IPC value
40 Mbps: Es/No > 9 + IPC value
60 Mbps: Es/No > 12 + IPC value
In addition, the BSU log provides the following information:
Int
Relative interference of the power received at the BSU (a value of 0 (zero) nominally shows no
interference)
GPS sync
-1 indicates GPS sync is disabled; 4 indicates GPS sync is enabled. GPS synchronization is used when
the system is in Multi Sector mode (multiple BSUs installed in the same location; see “Configuring the
System for Multi-Sector Mode” on page 29 for more information).
SU ID
The Terminal ID of the monitored SU
Time error
Shows the uplink (or inbound) ranging error
Rx cell error
Shows the number of lost uplink cells
Rx cells
Shows the total number of uplink cells
Time
Shows the cumulative polling time (in seconds)
Displaying the SU Logs
You can display two different types of SU logs: SUlog1 and SUlog2. To display the SU logs, install the
Base Station Configuration Software on the PC used to configure the SU (see “Installing the Base Station
Configuration Software” for information) and then execute the commands described below.
Follow these steps to enable an SU log:
1. Enter SUlog1 <time> or SUlog2 <time> where <time> specifies the polling period (in seconds).
(Specify SUlog1 to display SUlog1; specify SUlog2 to display SUlog2. See the information below for
details about these two logs.)
Chapter 4. System Diagnostics and Operating Tips 41
CPN 63179 Issue Date: 01/24/03