Ubiquiti Networks PowerBridgM - Manual (Page 66)

63
Chapter 9: Tools airOS ™ v5.5.4 User Guide
Ubiquiti Networks, Inc.
• Channel Usage For each Wi‑Fi channel, a bar displays
a percentage showing the relative “crowdedness” of
that specific channel. To calculate this percentage, the
airView Spectrum Analyzer analyzes both the popularity
and strength of RF energy in that channel since the start
of an airView session.
Enable Waveform chart (middle) Check the box to
enable the middle chart. This time‑based graph shows
the RF signature of the noise environment since the
start of the airView session. The energy color designates
its amplitude. Cooler colors represent lower energy
levels (with blue representing the lowest levels) in that
frequency bin, and warmer colors (yellow, orange, or red)
represent higher energy levels in that frequency bin.
The spectral view over time will display the steady‑state RF
energy signature of a given environment.
Enable Real-time chart (bottom) Check the box to
enable the bottom chart. This graph displays a traditional
spectrum analyzer in which energy (in dBm) is shown in
real time as a function of frequency. There are three traces
in this view:
•
Current (Yellow) Shows the real‑time energy seen by
the device as a function of frequency.
• Average (Green) Shows the running average energy
across frequency.
• Maximum (Blue) Shows updates and maximum power
levels across frequency.
Realtime Traces
The following settings apply only to the Real-time chart:
Current Real-time Trace Check the Enable box to enable
the real‑time trace. When enabled, the yellow outline on
the Real-time chart represents the real‑time power level of
each frequency. The refresh speed depends on the FPS.
Averages Trace Check the Enable box to enable the
averages trace. When enabled, the averages trace is
represented by the green area on the Real-time chart,
which displays the average received power level data
since the start of the airView session. To enable a shaded
green area, check the Shaded Area box. To display only
a green outline without the shaded area, uncheck the
Shaded Area box.
Maximum Power Levels Trace Check the Enable box to
enable the maximum power trace. When enabled, the
maximum power trace is represented by the blue area on
the Real-time chart, which displays the maximum received
power level data since the start of the airView session. To
enable a shaded blue area, check the Shaded Area box.
To display only a blue outline without the shaded area,
uncheck the Shaded Area box.
Frequency Range Select the amplitude of the
frequency interval to be scanned from the Frequency
Range drop‑down list. Available frequencies are device‑
dependent. There are pre‑defined ranges for the most
popular bands. You can enter a custom range; select
Custom Range from the Frequency Range drop‑down list
and enter the desired values in the Start and End fields.
Help
Click About to view the version and build number of the
airView Spectrum Analyzer.