Design and Construction of A Low-Power Multi-channel FM Transmitter Abstract The main aim of the project is to develop a miniaturised low power FM transmitter to be used in specialized application such as hearing aid for a tour guiding system‚ room monitoring (such as baby device)‚ small area security system and entertainments. No license is required for this low power- range limited transmitter designed according to FCC regulation. Frequency modulation has several advantages over the
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CHAPTER THREE ANALYSIS AND DESIGN 3.1 INTRODUCTION This chapter deals with the process of obtaining the design specifications of the wireless Frequency Modulated Transmitter with a frequency of 100MHz in a range of 100m under accurate conditions. From the block diagram shown in FIG. 2.1‚ various circuit components are now chosen and appropriate approximate values are now chosen to match its properties as well as perform duties of the stages. The entire system could be grouped into two major stages
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FM Transmitter Design Report Project Team: Dec06-01 Client Iowa State University-Senior Design Faculty Advisor Dr. John W. Lamont Prof. Ralph E. Patterson III Team Members Grant Blythe Tony Hunziker Luke Erichsen Jacob Sloat Disclaimer Notice: This document was developed as a part of the requirements of an electrical and computer engineering course at Iowa State University‚ Ames‚ Iowa. This document does not constitute a professional engineering design or a professional
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FM Transmitter Here is the schematic‚ PC board pattern‚ and parts placement for a low powered FM transmitter. The range of the transmitter when running at 9V is about 300 feet. Running it from 12V increases the range to about 400 feet. This transmitter should not be used as a room or telephone bug. Part Total Qty. Description Substitutions C1 1 0.001uf Disc Capacitor C2 1 5.6pf Disc Capacitor C3‚C4 2 10uf Electrolytic Capacitor C5 1 3-18pf Adjustable Cap R1 1 270 Ohm 1/8W Resistor
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Low Power FM Transmitter Rod Elliott (ESP) Share| [pic] Introduction This article should satisfy those who might want to build a low power FM transmitter. It is designed to use an input from another sound source (such as a guitar or microphone)‚ and transmits on the commercial FM band - it is actually quite powerful‚ so make sure that you don’t use it to transmit anything sensitive - it could easily be picked up from several hundred metres away. The FM band is 88 to 108MHz‚ and although it
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2012 A SYNOPSIS ON SUBMITTED BY: RAJ KUMAR DHAKAD BRIJESH PATEL RAJEEV KIRAR RASHMI RAI FM RADIO TRANSMITTER ACKNOWLEDGEMENT Practical knowledge means the visualization of the knowledge‚ which we read in books. For this we perform experiments & get observation. Practical knowledge is very important in field. One must be familiar with the problems related to the field so that he may solve them and becomes successful person. After achieving proper goal of life an engineer has to enter in the
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FREQUENCY MODULATION (FM) TRANSMITTER AND RECEIVER GOHHANSHIN Tesis Dikemukan Kepada Fakulti Kejuruteraan‚ Universiti Malaysia Sarawak Sebagai Memenuhi Sebahagian daripada Syarat Penganugerahan Sarjana Muda Kejuruteraan Dengan Kepujian (Kejuruteraan Elektronik dan Telekomunikasi) September 1998 DEDICATION To my beloved parents‚ family and friends. it I ACKNOWLEDGMENT First and foremost‚ I would like to express my high gratitude to my supervisor Madam Park Young Soon for
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gKit 32. TWO STAGE FM TRANSMITTER This Kit is a powerful two stage‚ 9V FM transmitter (Tx) with a range of up to 1 kilometer in the open. It uses an RF transistor in its output stage. Distance of transmission is critically dependent on the operating Conditions (in a building or out on the open)‚ type of aerial used (single wire or dipole)‚ operating voltage (12V is better than 6V) and if the circuit is peaked for maximum performance. The kit is constructed on a single-sided printed circuit board
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transmitted power (sidebands)? 5. The antenna current of an AM transmitter is 12 A when unmodulated but increases to 13 A when modulated. Calculate the percent modulation. 6. An intelligence signal is amplified by a 70% efficient amplifier before being combined with a 10 kW carrier to generate the AM signal. If it is desired to operste at 100% modulation‚ what is the input power to the final intelligence amplifier? 7. A transmitter with a 10 kW carrier transmits 11.2 kW when modulated with a
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Pressure Fundamentals and Transmitter Selection Reference-25 Reference-25 Pressure Fundamentals and Transmitter Selection Gage Absolute Gage Compound Barometric Range Pressure Total Vacuum (Zero or Absolute) FIGURE 1. Definition of Pressures. INTRODUCTION Selection Guide This document defines pressure and fundamentals of pressure measurement‚ as they relate to industry‚ and factors that should be considered in selecting a pressure transmitter. Included are definitions
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