Users Guide

775 | Spectrum Analysis Dell Networking W-Series ArubaOS 6.4.x| User Guide
Graph Title Description
Update
Interval
Device Duty
Cycle
A stacked bar chart showing the percent of each channel in the
spectrum monitor radio’s frequency band used by a Wi-Fi AP or
any other device type detected by the spectrum monitor. The
Device Duty Cycle chart for a hybrid AP only shows data for the
one channel monitored by the hybrid AP.This chart is not
available for W-AP68 access points. For details, see Device Duty
Cycle on page 799.
5 seconds
Devices vs
Channel
A stacked bar chart showing the total numbers of each device
type detected on each channel in the spectrum monitor radio’s
frequency band. The Devices vs Channel chart for a hybrid AP
only shows data for the one channel monitored by the hybrid
AP. For details, see Devices vs Channel on page 803.
5 seconds
FFT Duty
Cycle
Fast Fourier Transform, or FFT, is an algorithm for computing
the frequency spectrum of a time-varying input signal. This line
chart shows the FFT duty cycle, which represents the percent of
time a signal is broadcast on the specified channel or
frequency. Spectrum monitors can show data for multiple
channels, while a hybrid AP shows information only for its one
monitored channel.
This chart is not available for W-AP68 access points. For details,
see FFT Duty Cycle on page 805.
1 second
Interference
Power
This chart shows information about Wi-Fi interference, including
the Wi-Fi noise floor, and the amount of adjacent channel
interference from cordless phones, bluetooth devices and
microwaves. Spectrum monitors can show interference power
data for multiple channels, while a hybrid AP shows information
only for its one monitored channel. For details, see Interference
Power on page 807.
5 seconds