Free Essay

Checkpoint Week 2

In: Computers and Technology

Submitted By jones3317
Words 286
Pages 2
My analogy will be described on the principles of a mountain to describe voltage, current, resistance, electrical power. These principles will be explained through air pressure, air flow rate, diameter of the mountains, and the total amount of air between the mountains. The chart above is an example the electrical terms, abbreviation, description, mountain analogy, and unit of measurement. Voltage of my mountain analogy is described through the air pressure that is generated from each of the mountains. The current will be the air flow rate that flows from mountain to mountain. Diameter of the mountain will be the resistance and the electrical power will come from the total amount of air that is between each mountain.

Analog Modulation are generally use by radio stations and there are 3 types of analog modulation. The first type is amplitude modulation and the higher wave will be 1 bit while the lower wave will be 0 bit. Example if this is below:

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The next modulation is called phase modulation and this phase change the starting point of the cycle. These changes happens when the 1 bit to a 0 bit are being transmitted. An example of this is below.

[pic]

Digital modulation is used in most wireless devices and digital modulation is used more because digital has a lot more advantages over analog modulation. Some of these advantages are better use of bandwidth, less power to transmit, and performs better when other signals interfere. Below is my analogy of digital modulation in a binary modulation of frequency shift keying.

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