User guide

80 Chapter 6: Analyzing Spectrum Data
AirMagnet Spectrum XT User Guide
Event Spectrogram
The Event Spectrogram provides a visual presentation of real-time information about events
(device detections) that the application has made in the network. Each detection is an event
which is represented by a color band. The color of the band indicates the signal strength of the
device being detected (refer to the signal scale on top of the graph). If more detections are
made of the same device as the application sweeps the spectrum, the band will become thicker
(taller). The height of the color band indicates the (length of time in seconds the device has
been detected. It stops increasing when the device becomes inactive (meaning that the device
has not been detected for a minute). The width of the line/band indicates the channels or
frequencies being affected by the device. If the device is a frequency-hopping device, then the
line/band may extend sideways as the device hops from one channel to another.
Figure 6-16 shows the Event Spectrogram.
Figure 6-16: Event Spectrogram
If you place the cursor over the line/band, a tooltip will pop up showing some basic information
about that device, such as the type of the device, its peak power, and the time of it being detected.
Configuring Event Spectrogram
In the upper-right corner of the plot is a configuration button which allows you to configure
and change a number of parameters in the Event Spectrogram plot.