User guide

70 Chapter 6: Analyzing Spectrum Data
AirMagnet Spectrum XT User Guide
Table 6-3: Setting Spectrum Density Graph Parameters
Parameter Description
Color Scale Mode Allows the user to set or change the color scale modes of the Spectrum Density
graph. As indicated by the legend in the upper-right corner of the plot, the color
scale mode range from blue (Minimum Percentage) to red (Maximum
Percentage). Click in the field and use the down arrow to select either of the
following:
• Auto - (Default) If selected, the application will automatically and
dynamically change the color scale on the Spectrum Density graph.
• Manual - if selected, the user can manually set or change the Maximum
Percentage and/or Minimum Percentage values. Highlight the existing
Minimum Percentage and Maximum Percentage values and override them
with new values.
Once the Minimum Percentage and Maximum Percentage values are set, any
values that fall outside the range will be ignored by the Spectrum Density plot.
Those that are below the Minimum Percentage value will show as blue while
those that are above the Maximum Percentage value will show as red on the
Spectrum Density graph.
Maximum
Percentage
Allows the user to set or change the maximum percentage value (shown on the
right-hand side) of the color scale. It is 100 by default, but you can change this
value to any value if you select Manual in the Color Scale Mode. Simply
highlight the existing value and override it with a new value.
Minimum
Percentage
The minimum percentage (shown on the left-hand side) of the color scale. It is 0
by default, but you can change it to any value between 0 and 100, if you select
Manual in the Color Scale Mode. Simply highlight the existing value and
override it with a new value.
Minimum Power Allows the user to set or change the minimum power value in dBm in the Y-axis
of the Spectrum Density graph. By default, the Minimum Power value is -120,
but you can change it to any value as low as -140.
Peak Power Allows the user to set or change the peak power value in dBm in the Y-axis of
the Spectrum Density graph. By default, the Peak Power value is -20, but you
can change it to any value less than 0 dBm. Highlight the existing Peak Power
value and override with a new value.
Start Frequency Allows the user to set or change the start point of a frequency range. Highlight
the existing value and override it with a new value.
Stop Frequency Allows the user to set or change the end point of a frequency range. Highlight
the existing value and override it with a new value.