Software Guide

Monitor

Tsunami

800 & 8000 Series - Software Management Guide 262

7.11.5 Spectrum Analyzer

: Spectrum Analyzer is not applicable to MP-8150-CPE and QB-8150-LNK-12/50 devices.

Spectrum Analyzer helps to analyze a spectrum for interference, and select a relatively low interference channel. This tool is

not a replacement for the commercial Spectrum Analyzers as this is only intended to help with channel selection and

diagnose performance issues.

: Only an administrator user can use Spectrum Analyzer to scan the spectrum. However, the Monitor user can view the

last scanned results.

To scan all the channels in the configured frequency domain, do the following:

1. Navigate to MONITOR > Tools > Spectrum Analyzer. The following Spectrum Analyzer screen appears:

Figure 7-45 An Example - Spectrum Analyzer

2. Channel Scan Time: Enter the time (ranging from 100 to 60000 milliseconds) to scan each channel. By default, the

scan time is set to 1000 milliseconds.

3. Scan Iterations: Enter a number (ranging from 1 to 1000) which represents the number of times the scan iterates. By

default, the scan iteration is set to 1.

4. After configuring the Channel Scan Time and Scan Iterations, click OK. Upon clicking OK, the Approximate Scan

Duration parameter displays the total time (dd:hh:mm:ss) required to complete the scan.

5. Last Scanned Time: Represents the time at which the last spectrum scan was done.

6. Next click Start, to start the scan. Click Stop to stop the scan or wait for completion of the scan.

Spectrum Analyzer scan cannot be performed when

W ] e i V R X

Y i e e O b j O b O X P R U e k W

j l

is enabled.

The total duration of scan depends on the number of channels available, channel scan time and scan iterations.

To reduce scan duration, configure the appropriate frequency filter lower and upper edges.

While scanning, Spectrum Analyzer does not consider channel offset.

The frequencies are scanned by 5MHz slice starting from the lower edge of the frequency filter, and displays the

results captured at that particular instance.

Spectrum Analyzer detects only 802.11 modulated signals.