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Spectrum Analysis

Wireless networks operate in environments with electrical and radio frequency devices that can interfere with network communications. MicrowaveElectromagnetic energy with a frequency higher than 1 GHz, corresponding to wavelength shorter than 30 centimeters. ovens, cordless phones, and even adjacent Wi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard. networks are all potential sources of continuous or intermittent interference. The HTML-based spectrum analysis software modules on APs that support this feature examine the RFRadio Frequency. RF refers to the electromagnetic wave frequencies within a range of 3 kHz to 300 GHz, including the frequencies used for communications or Radar signals. environment in which the Wi-FiWi-Fi is a technology that allows electronic devices to connect to a WLAN network, mainly using the 2.4 GHz and 5 GHz radio bands. Wi-Fi can apply to products that use any 802.11 standard. network is operating, identify interference and classify its sources. An analysis of the results quickly isolate issues with packet transmission, channel quality, and traffic congestion caused by contention with other devices operating in the same bandBand refers to a specified range of frequencies of electromagnetic radiation. or channel.

AP radios that gather spectrum data but do not service clients are called Spectrum Monitor (SM). Each SM scans and analyzes the spectrum bandBand refers to a specified range of frequencies of electromagnetic radiation. used by the radio (2.4 GHzGigahertz. or 5 GHzGigahertz.) of the SM. An AP radio in hybrid AP mode continues to serve clients as an access point while analyzing spectrum analysis data for the channel the radio uses to serve clients. You can record data for both types of spectrum analysis devices, save that data, and then play it back for later analysis.

Topics in this section include:

Understanding Spectrum Analysis

Creating Spectrum Monitors and Hybrid APs

Spectrum Analysis Tasks

Configuring Spectrum Analysis Dashboards

Customizing Spectrum Analysis Graphs

Working with Non-Wi-Fi Interferers

Understanding Spectrum Analysis Session Log

Viewing Spectrum Analysis Data

Recording Spectrum Analysis Data

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