Case Studies
FIGURE 13.8
Spectrum Analyzer Showing Narrowband RF Interference
After finding that channel 1 has a significant source of narrowband RF
interference with harmonics that fall into the channel 11 series of
frequencies, Mr. Parsons tries to find the source. He finds that the
source of this RF interference is a power tool that is used repeatedly
throughout the day to repair aircraft engines. Since this tool must be
used, the alternative to discontinued use is to move the access point to
channel 6. This change gives the client devices and access point the
best chance of receiving uncorrupted frames. After moving the access
point to channel 6, performance improves dramatically, and the
problem is solved.
