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Deploying License-Free Wireless Wide-Area Networks by Jack Unger

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Minimizing the Noise and Interference Level

You do not have direct control over most noise and interference sources. Remember: Noise is defined as “everything other than the desired signal.“ Therefore, noise includes all the following:

  • Natural noise— Atmospheric and galactic noise.

  • Manmade noise— Noise that is present in the radio-frequency (RF) environment and that is picked up by your antenna. This includes noise from microwave ovens, cordless telephones, and indoor wireless LANs.

  • Receiver noise— Noise generated inside the receiver circuitry.

  • Interference from other networks— Interference caused by other signals in the same band coming from other nearby wireless networks.

  • Interference from your network— Interference caused by signals coming ...

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