778| Spectrum Analysis AOS-W 6.5.3.x| User Guide
Cycle table. Click the down arrow in the upper right corner of this chart, then click the Options menu to access
these configuration settings. Once you have configured the desired parameters, click OK at the bottom of the
Options menu to save your settings and return to the spectrum dashboards.
Parameter Description
Band Radio band displayed in this graph.
For spectrum monitor radios using the 5 GHz radio band, click the Band drop-down
list and select 5 GHz upper, 5GHz middle or 5Ghz lower to display data for that
portion of the 5Ghz radio band. This parameter is not configurable for graphs
created by hybrid APs or spectrum monitor radios that use the 2.4 GHz radio band.
Channel Numbering
This parameter is not configurable for graphs created by hybrid APs or spectrum
monitor radios that use the 2.4 GHz radio band. A hybrid AP on a 20 MHz channel
sees 40 MHz Wi-Fi data as non-Wi-Fi data. For spectrum monitors using the 5 GHz
radio band, click the Channel Numbering drop-down list and select either 20 MHz
or 40 MHz channel numbering to identify a channel numbering scheme for the
graph. Graphs for AP radios that support 802.11ac include an additional 80MHz
option for very-high-throughput channels.
X-Axis Select either Channel or Frequency to show the duty cycle for a range of channels
or frequencies.
Channel Range If you selected Channel in the X-Axis parameter, you must also specify a channel
range to determine which channels appear in the x-axis of this chart. Click the first
drop-down list to select the lowest channel in the range, then click the second drop-
down list to select the highest channel to appear in the chart.
NOTE: This parameter is not configurable for graphs created by hybrid APs.
Center Frequency If you selected Frequency in the X-Axis parameter, enter the frequency, in MHz,
that you want to appear in the center of the x-axis of this chart.
Span If you selected Frequency in the X-Axis parameter, specify the size of the range of
frequencies around the selected center frequency. If you set a frequency span of
100 MHz, for example, the chart shows the FFT duty cycle for a range of frequencies
from 50MHz lower to 50 MHz higher than the selected center.
Show Select a checkbox to display that information on the FFT Duty Cycle chart.
n Duty Cycle: The percentage of duty cycle the channel or frequency was actively
used.
n Max Hold: The maximum recorded percentage of active duty cycles for the
channel frequency since the chart was last reset. To clear this setting, click the
down arrow at the end of the title bar for this graph and select Reset MaxHold.
n Max of last sweeps: This chart shows the maximum percentage of active duty
cycles for the channel of frequency recorded during the last 10 sweeps, by
default. To change the number of sweeps used to determine this value, enter a
number from 2 to 20, inclusive. To clear this setting, click the down arrow at the
end of the title bar for this graph and select Reset MaxNSweep.
Table 173: FFT Duty Cycle Options
Interference Power
The Interference Power chart displays various power levels of interest, including the Wi-Fi AP with maximum
signal strength, noise, and interferer types with maximum signal strength. The ACI displayed in the Interference
Power Chart is the ACI power level based on the signal strength(s) of the Wi-Fi APs on adjacent channels. A
higher ACI value in Interference Power Chart does not necessarily mean higher interference, because the AP
To Next Page
Loading...