May 2012
Intermediate to advanced
768 pages
21h 7m
English
book
CWNA: Certified Wireless Network Administrator Official Study Guide: Exam PW0-105, 3rd Edition
by David D. Coleman, David A. Westcott
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Chapter 3
Radio Frequency Components, Measurements, and Mathematics
In this chapter, you will learn about the following:
Components of RF communications
Transmitter
Receiver
Antenna
Isotropic radiator
Intentional radiator (IR)
Equivalent isotropically radiated power (EIRP)
Units of power and comparison
Watt
Milliwatt
Decibel (dB)
dBi
dBd
dBm
Inverse square law
RF mathematics
Rule of 10s and 3s
Noise floor
Signal-to-noise ratio (SNR)
Received signal strength indicator (RSSI)
Link budget
Fade margin/system operating margin
To put it simply, data communication is the transferring of information between computers. No matter what form of communication is being used, many components are required to achieve a successful transfer. Before we look at some ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.