Users Guide

805 | Spectrum Analysis Dell Networking W-Series ArubaOS 6.4.x| User Guide
Parameter Description
Show This graph can show data for up to five different device types. To show how many
devices of a specific type are sending a signal on the selected channel range, click the
show checkbox by that device, then click the device 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 816.
FFT Duty Cycle
The FFT Duty Cycle chart is a line chart that shows the duty cycle for each frequency bin. The width of the each
frequency bin depends on the resolution bandwidth of the spectrum monitor. The spectrum analysis feature
considers a frequency bin to be used if the detected power in that bin is at least 20 dB higher than the nominal
noise floor on that channel. The FFT Duty Cycle provides a more granular view of the duty cycle per bin as
opposed to the aggregated channel utilization reported in the Channel Metrics chart.
This chart is not available for W-AP68 access points. A hybrid AP on a 20 MHz channel will see 40 MHz Wi-Fi data as
non-Wi-Fi data.
This chart can show the duty cycle over the last second, the maximum FFT duty cycle measured for all samples
taken over the last N sweeps, and the greatest FFT duty cycle recorded since the chart was last reset.