User guide

AirMagnet Spectrum XT User Guide
Chapter 1: Introduction 3
AP Signal Strength Graph
The AP Signal Strength graph identifies and displays up to three APs with the strongest signal
strengths on each available channel in the selected radio band.
Top 10 APs by Speed Graph
The Top 10 APs by Speed graph displays up to 10 APs with the fastest transmission speeds as
well as the data rate or rates used by each of the top APs. Each bar represents an AP.
Top 10 Active APs’ Retry/CRC Graph
The Top 10 Active APs’ Retry/CRC graph shows up to 10 APs with the most Retry or CRC
rates on each of the available channels for the selected media. The X-axis lists all available
channels and the Y-axis shows the percentages or retry and/or CRC rates.
WiFi Devices Graph
The WiFi Devices graph (table) displays all WiFi devices detected on the WiFi network. The
devices are organized three categories, which are Station, AP, and Phone.
Channel Occupancy Graph
The Channel Occupancy graph allows the user to visualize all the available channels for the
selected radio band and shows which AP or APs are occupying what channel. It also indicates
the center frequency used by an AP and channels affected by RF interference caused by the
AP. The information helps the user make well-informed decisions on AP channel allocation to
optimize their performance.
Channels by Speed Graph
The Channel by Speed graph displays the amount of data in kilobytes sent at each
transmission rate on each of available channel for the selected radio band.
Channels by Media
The Channel by Media graph shows the amount of data (in kilobytes) transmitted by data
type (i.e., 802.11a, b, g, and n) on each available channel for the selected radio band.
Channels by Address
The Channel by Address graph shows the amount (in kilobytes) of data transmitted by each
address type (i.e., broadcast, unicast, or multicast) on each available channel for the selected
radio band.
Channel Utilization Graph
The Channel Utilization graph shows the percentage of bandwidth being used on each
channel and the breakdown of the utilization by data transmission rate.
Channel Signal/Noise Ratio
The Channel SNR graph shows the signal-to-noise ratio on all available channels in the
selected radio band.