User's Manual

Parameter Description
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
l WiFi (AP)
l Microwave (This option is only available for 2.4 GHz radios)
l Bluetooth (This option is only available for 2.4 GHz radios)
l Fixed Freq (Others)
l Fixed Freq (Cordless Phones)
l Fixed Freq (Video)
l Fixed Freq (Audio)
l Freq Hopper (Others)
l Freq Hopper (Cordless Network)
l Freq Hopper (Cordless Base)
l Freq Hopper Xbox (This option is only available for 2.4 GHz radios)
l Microwave (Inverter) (This option is only available for 2.4 GHz radios)
l Generic Interferer
NOTE: For more information on non-Wi-Fi device types detected by a spectrum monitor, see
Working with Non-Wi-Fi Interferers on page 739.
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).
For additional information on how the spectrum analysis feature measures ACI, see Channel Metrics on page 719.
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 shows the
percentage of the channel being utilized at the specified time. The example in Figure 115 shows that channel 1
was 70% used at the selected time in the chart.
Dell Networking W-Series ArubaOS 6.4.x | User Guide Spectrum Analysis | 726