Neighboring Channel Interference
Suppose that two transmitters are placed on two different channels. However, the channels are spaced too closely together such that they overlap each other. Perhaps someone decided to use neighboring channels, rather than reuse the same channel, to avoid co-channel interference. More likely, two different people have transmitters located in the same general area and decided to use slightly different channel numbers—not realizing that neighboring channels in the 2.4-GHz band overlap.
The end result is interference on both channels because a portion of one signal overlaps a portion of another signal. In Figure 3-3, transmitter A is using channel 6, while transmitter B is using channel 7. The two signals do not completely ...
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