CWNA Chapter 4 – Radio Frequency Signal and Antenna Concepts

My Notes from chapter 4 of the CWNA study guide Azimuth and Elevation Charts (Antenna Radiation Envelopes) In either chart, the antenna is placed at the centre of the chart. Azimuth chart = H-plane = top-down view Elevation chart = E-plane = side view Interpreting Polar Charts Represent the decibel (dB) mapping of the antenna …

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CWNA Chapter 3 – Radio Frequency Components, Measurements, and Mathematics

My Notes from chapter 3 of the CWNA study guide RF Components Transmitters Initial component in the creation of wireless medium. Transmitters job is to begin the RF communications Transmitter starts AC signal oscillating  at the RF frequency Transmitter takes data provided and modifies the AC signal using a Modulation technique Antenna Two functions when …

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CWNA Chapter 1 – Wireless Standards, Organizations and Fundamentals

My Notes from chapter 1 of the CWNA study guide Standard Organisations Federal Communication Commission (FCC) Regulatory body for the United States for Radio, TV, wire, satellite and cable. Set Rules for what users can do with wireless around: Frequency Bandwidth Maximum power of the intentional radiator (IR) Max equivalent isotropically radiated power (EIRP) Use …

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