Build Your Own Low-Power Transmitters (Malestrom)

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Butterworth-Heinemann | English | PDF | 305 Pages 9 MB

Introduction
Rudolf Graf and William Sheets have written a book containing twenty low-power (LP) transmitter projects, perfect for the electronics hobbyist and radio experimenter. Now that the FCC has changed its regulations about "pirate" transmissions, more and more people are setting up radio and video stations for broadcast from their homes. Build Your Own Low-Power Transmitters addresses applications for hobbyist broadcasting of AM, SSB, TV, FM Stereo and NBFM VHF-UHF signals with equipment the reader can build himself for thousands of dollars less than similar equipment sold on the retail market. The authors also fully explore the legal limits and ramifications of using the equipment as well as how to get the best performance for optimum range. The key advantage is referencing a low-cost source for all needed parts, including the printed circuit board, as well as the kit.

Table Of Contents

Preface
1 Low-Power Transmitters, General 1
2 Basic Building Blocks 9
3 Simple Low-Power Transmitters for Experimenters 23
4 50 mW VFO-Controlled AM Transmitter for 530-1710 kHz 31
5 PLL Synthesized AM Transmitter for 530-1710 kHz 35
6 VFO Controlled FM Monaural Transmitter for 88-108 MHz 55
7 Basic FM Stereo Signal Generation Techniques 61
8 PLL Synthesized FM Stereo Transmitter for 88-108 MHz 69
9 Microprocessor-Controlled FM Stereo Transmitter for 88-108 MHz 93
10 20 mW Low-Power TV Transmitter 117
11 0.5-Watt TV Transmitter for R/C Vehicles 121
12 2-Watt TV Transmitter for R/C and Amateur TV for 400 MHz 131
13 1-Watt TV Transmitters for 902-928 MHz and 1240-1300 MHz 147
14 Experimental 20 mW 915 MHz PLL FM TV Transmitter 163
15 Receiving Converters and IF Systems for Low-Power ATV Transmitters
171
16 Low-Power Narrowband FM Audio Transmitters 215
17 Serial Data Transmit-Receive System for Remote Control 223
18 RF Field-Strength Meter for 500 kHz to 3 GHz Transmitter 233
19 Low-Power CW Transmitter for 40 Meters 247
20 Single Sideband Basics 253
21 Basic Single Sideband Generator/Exciter Unit 261
22 1-Watt CW Transmitter for the 1750-Meter "LOWFER" Band 267
23 Simple CW Identifier 273
Appendix 281