CHAPTER 3RF Math
In this chapter, you will
• Learn to calculate RF signal strengths
• Understand how to determine the SNR and RSSI
• Differentiate between the link budget and SOM
If you read Chapter 2 or have experience working with wireless networks, you should have a good idea of how RF signals travel throughout coverage areas. Now, you need to discover how to calculate the strength of the RF signals in order to ensure that they provide sufficient coverage. RF math is used to calculate a signal’s strength and the changes in strength as the signal travels down wires and through free space within an environment.
The first thing you must understand is the basic terminology used in RF signal strength measurements, such as milliwatt and decibel. ...
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