Users Guide

Table Of Contents
Dell PowerConnect W-Series ArubaOS 6.1 | User Guide Spectrum Analysis | 633
Channel Utilization Trend
The Channel Utilization Trend chart is a line chart that shows the percentage of total utilization on each channel
over a time interval. The channel utilization includes the utilization due to Wi-Fi as well as utilization due to
non-Wi-Fi interferers and Adjacent Channel Interference (ACI).
This graph can show data recorded for the last ten, thirty, or sixty minutes. Spectrum monitors display spectrum
analysis data seen on all channels in the selected band, and hybrid APs display data from the one channel they are
monitoring. When you hover your mouse over any line in the chart, a tooltip will show the percentage of the
channel being utilized at the specified time. The example in Figure 146 shows that channel 1 was 70% utilized at
the selected time in the chart.
Figure 146 Channel Utilization Trend
Show This graph can display values for up to five different device types on different channels for a spectrum
monitor, or a single device type for a hybrid AP monitoring a single channel.
To choose which type of data each line should represent, click the channel number drop-down list and select
a channel within the radio band, then click the device type drop-down list and select one of the following
device types
WiFi (AP)
Microwave (This option is only available for 2.4 GHz radios)
Bluetooth (This option is only available for 2.4 GHz radios)
Fixed Freq (Others)
Fixed Freq (Cordless Phones)
Fixed Freq (Video)
Fixed Freq (Audio)
Freq Hopper (Others)
Freq Hopper (Cordless Network)
Freq Hopper (Cordless Base)
Freq Hopper Xbox (This option is only available for 2.4 GHz radios)
Microwave (Inverter) (This option is only available for 2.4 GHz radios)
Generic Interferer
NOTE: For more information on non-Wi-Fi device types detected by a spectrum monitor, see “Non-Wi-Fi
Interferers” on page 646.
Table 134 Device Duty Cycle Options (Continued)
Parameter Description
NOTE: For additional information on how the spectrum analysis feature measures ACI, see “Channel Metrics” on page 627.