Installation Instructions

Table Of Contents

6.4.4. Spectral analysis

The Spectrum Graph window contains a static graph readout and

controls to detect radio-frequency interference that exists between local

Fluidmesh units transmitting and receiving in a specified frequency band.

The window can be used make the most efficient choice of center

frequency and channel width for radio links between units.

To use the Spectrum Graph window, do the following steps:

1. Click the -spectral analysis link under GENERAL SETTINGS in

the left-hand settings menu.

• The Spectrum Graph window will open in a new web

browser tab (Figure 29 (page 77)).

Figure 29. Spectrum Graph window (typical display)

• The Spectrum Graph readout will be empty.

2. Choose a range for the frequency band that must be scanned for

interference or excessive radio noise by doing either of the

following:

• Set the start and stop frequency selection to the system

defaults (4 950 MHz to 5 825 MHz) by clicking

the Default button.

• Enter custom start frequency and stop frequency values for

the frequency band that must be scanned for interference,

in the Start Frequency (MHz) and Stop Frequency (MHz)

fields.

3. In the Commands table, click the Start button.

• When the frequency scan is complete, the Spectrum Graph

window will show the scan result.

• Signal quality for each channel is shown as a function of

signal noise quantity (in decibel-milliwatts) at each

frequency. The higher the value shown on the graph, the

poorer the signal quality. A green display indicates high

Fluidmesh 4200 FIBER