The City College of New York, CUNY - EE 422EE 422 Lab on AM Fundamentals Final Version

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The City College of New York School of Engineering EE 422.00 Analog Communications Laboratory Amplitude Modulation Fundamentals Due 2004, March 42 Introduction This lab report presents the fund... amentals of amplitude modulation (AM), which is used widely in many applications. We will use an analog communications system shown in Figure A to observe the time and frequency domain characteristics of a modulated signal. With this system, we will correlate the theoretical material with the raw data obtained in the lab. But first, we must understand certain communication concepts and terminologies on the communication system used. The human eye is limited to see a set of colors in the frequency (or wavelength) spectrum where it consists of red, orange, yellow, green, blue, indigo, and violet within the 1014 to 1015 Hz range (10-6 to 10-7 m). We consider these colors as visible light. Other ranges exist in the spectrum (about 104 to 1024 Hz) where radio signals is in the 106 to 1010 Hz range. This is where we engineer devices to help us generate and receive data to form a communication network. Without this concept, people around the world would be isolated from information [Show More]

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