H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 496)

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Figure 518 Power increasing
Spectrum analysis
WLAN systems operate on shared bands. Many devices, such as microwave ovens, cordless phones,
and Bluetooth devices also operate on these bands and can negatively affect the WLAN systems.
The spectrum analysis feature is designed to solve this problem. Spectrum analysis delivers the following
functions:
• Identifies five types of interferences and provides interference device reports.
• Calculates the number of interferences on each channel and average and worst channel quality,
and provides channel quality reports.
• The AP collects Fast Fourier Transform (FFT) data, including frequency, FFT power, maximum power,
and FFT duty cycle, and sends the data to the NMS through the AC.