
AOS-W Instant 6.3.1.1-4.0 | User Guide Spectrum Monitor | 203
Chapter 17
Spectrum Monitor
This chapter provides the following information:
l Understanding Spectrum Data on page 203
l Configuring Spectrum Monitors and Hybrid OAW-IAPs on page 208
Understanding Spectrum Data
Wireless networks operate in environments with electrical and radio frequency devices that can interfere with
network communications. Microwave ovens, cordless phones, and even adjacent Wi-Fi networks are all potential
sources of continuous or intermittent interference. The spectrum monitor software modules on OAW-IAPs that
support this feature are able to examine the radio frequency (RF) environment in which the Wi-Fi network is
operating, identify interference and classify its sources. An analysis of the results can then be used to quickly isolate
issues with packet transmission, channel quality, and traffic congestion caused by contention with other devices
operating in the same band or channel.
Spectrum monitors (SMs) are OAW-IAP radios that gather spectrum data but do not service clients. Each SM scans
and analyzes the spectrum band used by the SM's radio (2.4 GHz or 5 GHz). An AP radio in hybrid AP mode
continues to serve clients as an access point while it analyzes spectrum analysis data for the channel the radio uses
to serve clients. You can record data for both types of spectrum monitor devices. However, the recorded spectrum is
not reported to the Virtual Controller. A spectrum alert is sent to the VC when a non Wi-Fi interference device is
detected.
The spectrum monitor is supported on OAW-IAP104, OAW-IAP105, OAW-IAP134 and OAW-IAP135 radios.
The spectrum data is collected by each OAW-IAP spectrum monitor and hybrid AP. The spectrum data is not
reported to the VC. The Spectrum link is visible in the AOS-W Instant UI (Access Point view) only if you have
enabled the spectrum monitoring feature. You can view the following spectrum data in the AOS-W Instant UI:
l Device List
l Non Wi-Fi Interferers
l Channel Metrics
l Channel Details
l Spectrum Alerts
Device List
The device list consists of a device summary table and channel information for active non Wi-Fi devices currently
seen by a spectrum monitor or hybrid AP radio. To view the device list, click Spectrum in the dashboard.
To view the device list, click Spectrum in the dashboard. The following figure shows an example of the device list
details.
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