Software Guide

Monitor
Tsunami
®
800 & 8000 Series - Software Management Guide 264
Graph Results Interpretation
Consider a network with a device operating on channel 122 with 20 MHz channel bandwidth. In the same vicinity, when we
run the Spectrum Analyzer on a Tsunami radio it will display the results as shown in
T R g h Q O m n o p
. From the results, we see
interfering signals on channels 115 to 129. It also shows strong interfering signal on channels 120 to124 indicating the
presence of a device operating on channel 122, and moderate interfering signals on channels 115-119 and 125-129 (which
are side band signals from the same interference source).
We recommend to avoid using these channels while installing Tsunami products, otherwise radio will report huge PHY and
CRC errors. However, to make these channels usable and to ignore the low interference signals, we recommend configuring
j i P O b b R P O W O e a R P ]
on the devices.
By default, for each channel, the graph represents the following statistics:
Please note that the Current Iteration parameter helps to learn the current scan iteration. For example, if Scan Iteration is
configured as 2, and currently only one scan cycle is complete then Current Iteration parameter displays 1.
To view the statistics of a particular channel, point the cursor to that channel on the graph. The statistics is displayed as shown
below:
Figure 7-47 Channel Statistics
It is also possible to view only the selected statistics on the graph. For example, to view only Minimum and Maximum RSSI on
the graph, uncheck the box against Activity Count and Avg on the top of the graph.
Parameter Description Legend
Maximum RSSI Represents the maximum RSSI of all the signals received during the scan on a
given channel.
Minimum RSSI Represents the minimum RSSI of all the signals received during the scan on a
given channel.
Average RSSI Represents the average RSSI of all the signals received during the scan on a
given channel.
Activity Count Represents the total wireless activities (including OFDM Signal and Errors)
during the scan on a given channel.