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22 radio receiver projects for the evil genius

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evil genius series bionics for the evil genius 25 build-it-yourself projects electronic circuits for the evil genius 57 lessons with projects electronic gadgets for the evil genius 28 build-it-yourself projects electronic games for the evil genius electronic sensors for the evil genius 54 electrifying projects 50 awesome auto projects for the evil genius 50 model rocket projects for the evil genius mechatronics for the evil genius 25 build-it-yourself projects more electronic gadgets for the evil genius 40 new build-it-yourself projects 101 spy gadgets for the evil genius 123 pic® microcontroller experiments for the evil genius 123 robotics experiments for the evil genius pc mods for the evil genius solar energy projects for the evil genius 25 home automation projects for the evil genius 51 high-tech practical jokes for the evil genius

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22 radio receiver projects for the evil genius tom petruzzellis new york chicago san francisco lisbon london madrid mexico city milan new delhi san juan seoul singapore sydney toronto

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copyright © 2008 by the mcgraw-hill companies inc all rights reserved manufactured in the united states of america except as permitted under the united states copyright act of 1976 no part of this publication may be reproduced or distributed in any form or by any means or stored in a database or retrieval system without the prior written permission of the publisher 0-07-159475-2 the material in this ebook also appears in the print version of this title 0-07-148929-0 all trademarks are trademarks of their respective owners rather than put a trademark symbol after every occurrence of a trademarked name we use names in an editorial fashion only and to the benefit of the trademark owner with no intention of infringement of the trademark where such designations appear in this book they have been printed with initial caps mcgraw-hill ebooks are available at special quantity discounts to use as premiums and sales promotions or for use in corporate training programs for more information please contact george hoare special sales at george_hoare@mcgraw-hill.com or 212 904-4069 terms of use this is a copyrighted work and the mcgraw-hill companies inc mcgraw-hill and its licensors reserve all rights in and to the work use of this work is subject to these terms except as permitted under the copyright act of 1976 and the right to store and retrieve one copy of the work you may not decompile disassemble reverse engineer reproduce modify create derivative works based upon transmit distribute disseminate sell publish or sublicense the work or any part of it without mcgraw-hill s prior consent you may use the work for your own noncommercial and personal use any other use of the work is strictly prohibited your right to use the work may be terminated if you fail to comply with these terms the work is provided as is mcgraw-hill and its licensors make no guarantees or warranties as to the accuracy adequacy or completeness of or results to be obtained from using the work including any information that can be accessed through the work via hyperlink or otherwise and expressly disclaim any warranty express or implied including but not limited to implied warranties of merchantability or fitness for a particular purpose mcgraw-hill and its licensors do not warrant or guarantee that the functions contained in the work will meet your requirements or that its operation will be uninterrupted or error free neither mcgraw-hill nor its licensors shall be liable to you or anyone else for any inaccuracy error or omission regardless of cause in the work or for any damages resulting therefrom mcgraw-hill has no responsibility for the content of any information accessed through the work under no circumstances shall mcgraw-hill and/or its licensors be liable for any indirect incidental special punitive consequential or similar damages that result from the use of or inability to use the work even if any of them has been advised of the possibility of such damages this limitation of liability shall apply to any claim or cause whatsoever whether such claim or cause arises in contract tort or otherwise doi 10.1036/0071489290

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about the author about the author thomas petruzzellis is an electronics engineer currently working at the geophysical laboratory at the state university of new york binghamton also an instructor at binghamton with 30 years experience in electronics he is a veteran author who has written extensively for industry publications including electronics now modern electronics qst microcomputer journal and nuts volts tom wrote five previous books including an earlier volume in this series electronic sensors for the evil genius he is also the author of create your own electronics workshop stamp 2 communications and control projects optoelectronics fiber optics and laser cookbook alarm sensor and security circuit cookbook all from mcgraw-hill he lives in vestal new york copyright © 2008 by the mcgraw-hill companies inc click here for terms of use.

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acknowledgments acknowledgments i would like to thank the following people and companies listed below for their help in making this book possible i would also like to thank senior editor judy bass and all the folks at mcgraw-hill publications who had a part in making this book possible we hope the book will inspire both radio and electronics enthusiasts to build and enjoy the radio projects in this book charles higgins/tennessee state university fat quarters software radio-sky publishing ramsey electronics vectronics inc russell clift todd gale eric vogel richard flagg/rf associates wes greenman/university of florida copyright © 2008 by the mcgraw-hill companies inc click here for terms of use.

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for more information about this title click here project 10 experiments contents acknowledgments introduction 1 radio background and history 2 identifying components and reading schematics 3 electronic parts installation and soldering 4 am fm and shortwave crystal radio projects 5 trf am radio receiver 6 solid-state fm broadcast receiver 7 doerle single tube super-regenerative radio receiver 8 ic shortwave radio receiver 9 80/40 meter code practice receiver 10 wwv 10 mhz time-code receiver 11 vhf public service monitor action-band receiver 12 6 2-meter band amateur radio receiver vii xi 1 12 25 39 49 59 70 81 94 104 116 127 13 active and passive aircraft band receivers 14 vlf or very low frequency radio receiver 15 induction loop receiving system 16 lightning storm monitor 17 ambient power receiver 18 earth field magnetometer project 19 sudden ionospheric disturbance sids receiver 20 aurora monitor project 21 ultra-low frequency ulf receiver 22 jupiter radio telescope receiver 23 weather satellite receiver 24 analog to digital converters adcs appendix electronic parts suppliers index 140 153 165 175 186 192 203 212 224 233 246 262 273 277 ix

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introduction 22 radio receiver projects for the evil genius was created to inspire readers both young and old to build and enjoy radio and receiver projects and perhaps propel interested experimenters into a career in radio electronics or research this book is for people who are interested in radio and electronics and those who enjoy building and experimenting as well as those who enjoy research radio encompasses many different avenues for enthusiasts to explore from simple crystal radios to sophisticated radio telescopes this book is an attempt to show electronics and radio enthusiasts that there is a whole new world out there to explore chapter 1 will present the history and background and elements of radio such as modulation techniques etc chapter 2 will help the newcomers to electronics identifying components and how to look and understand schematics vs pictorial diagrams next chapter 3 will show the readers how to install electronic components onto circuit boards and how to correctly solder before embarking on their new radio building adventure we will start our adventure with the simple lowly crystal radio in chapter 4 generally crystal radios are only thought of as simple am radios which can only pickup local broadcast stations but did you know that you can build crystal radios which can pickup long-distance stations as well as fm and shortwave broadcasts from around the world you will learn how to build an am fm and shortwave crystal radio in this chapter in chapter 5 you will learn how am radio is broadcast from a radio station to a receiver in your home and how to build your own trf or tuned radio frequency am radio receiver in chapter 6 we will discover how fm radio works and how to build an fm radio with an sca output for commercial free radio broadcasts chapter 7 will present the exciting world of shortwave radio shortwave radio listening has a large following and encompasses an entire hobby in itself you will be able to hear shortwave stations from around the world including china russia italy on your new shortwave broadcast receiver old time radio buffs will be interested in the single tube doerle super-regenerative shortwave radio if you are interested in a portable shortwave receiver that you could take on a camping trip then you may want to construct the multi-band integrated circuit shortwave radio receiver described in chapter 8 if you are interested in amateur radio or are thinking of learning morse code or want to increase your code speed you may want to consider building this 80 and 40-meter code receiver this small lightweight portable receiver can be built in a small enclosure and taken on camping trips etc in chapter 10 you will learn how to build and use a www time code receiver which can be used to pick up time signal broadcast from the national institute of standards and technology nist or xi copyright © 2008 by the mcgraw-hill companies inc click here for terms of use.

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national atomic time clock in boulder co time signal broadcasts present geophysical and propagation forecasts as well as marine and sea conditions they will also help you set the time on your best chronometer with the vhf public service receiver featured in chapter 11 you will discover the high frequency action bands which cover the police fire taxis highway departments and marine frequencies you will be able to listen-in to all the exciting communications in your hometown the 6-meter and 2-meter dual vhf amateur radio receiver in chapter 12 will permit to discover the interesting hobby of amateur radio the 6-meter and 2-meter ham radio bands are two of the most popular vhf bands for technician class licensees you may discover that you might just want to get you own ham radio license and talk to ham radio operators through local vhf repeaters or to the rest of the world why not build an aircraft radio and listen-in to airline pilots talking from 747s to the control tower many miles away you could also build the passive air-band radio which you use to listen-in to your pilot during your own flight passive aircraft radios will not interfere with airborne radio so they are permitted on airplanes without restriction check out these two receivers in chapter 13 chapter 14 will also show you how to build an induction communication system which will allow you to broadcast a signal around home or office using a loop of wire to a special induction receiver the induction loop broadcast system is a great aid to the hearing impaired since it can broadcast to hearing aids as well the vlf or whistler radio in chapter 15 will pickup very very low frequency radio waves from around the world you will be able to listen to low frequency beacon stations submarine transmissions and whistlers or the radio waves created from electrical storms on the other side of the globe this project is great for research projects where you can record and later analyze your results by feeding your recorded signal into a sound card running an fft program use your computer to record and analyze these interesting signals there are many free programs available over the internet an fft audio analyzer program can display the audio spectrum and show you where the signals plot out in respect to frequency if you are interested in weather then you will appreciate the lightening to storm receiver in chapter 16 which will permit you to see the approaching storm berfore it actually arrives this receiver will permit you to have advanced warning up to 50 miles or more away it will warn you well in advance of an electrical storm so you can disconnect any outdoor antennas the ambient power module receiver project illustrated in chapter 17 will allow to you pickup a broad spectrum of radio waves which get converted to dc power and which can be used to power low current circuits around your home or office this is a great project for experimentation and research you can use it to charge cell phones emergency lights etc our magnetometer project shown in chapter 18 can be used to see the diurnal or daily changes in the earth s magnetic field and you can record the result to a data-logger or recording multi-meter if you are an avid amateur radio operator or shortwave listener you many want to build a sids receiver shown in chapter 19 a sids receiver can be used to determine when radio signals and/or propagation is disturbed by solar storms this receiver will quickly alert you to unfavorable radio conditions you can collect the receiver to your personal computer s sound card and use the data recorded to correlate radio propagation against storm conditions the aurora receiver project in chapter 20 will alert you with both sound and meter display when the earth s magnetic increases just before an aurora display is about to take place ufo and alien contact buffs can use this receiver to know when ufos are close by introduction xii

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for those interested in more earthly research projects why not build your own ulf or ultra low frequently receiver shown in chapter 21 which can be utilized for detecting low frequency wave generated by earthquakes and fault lines with this receiver you will be able to conduct your own research projects on monitoring the pulse of the earth you can connect your elf receiver to a data-logger and record the signals over time to correlate your research with that of others you can explore the heavens by constructing your own radio telescope to monitor the radio signals generated from the planet jupiter this radio receiver illustrated in chapter 22 will pick up radio signals which indicate electrical and or magnetic storms on the jovian planet the radio jupiter receiver can be coupled to your personal computer and can be used for a research project to record and analyze these radio storm signals why not construct your own weather satellite receiving station shown in chapter 23 this receiver will allow you to receive apt polar satellites broadcasting while passing overhead you can display the satellite weather maps on the computer s screen or save them later to show friends and relatives chapter 24 discusses different analog to digital converters which you can use to collect and record data from the different receiver projects we hope you will find the 22 radio projects for the evil genius a fun and thought-provoking book that will find a permanent place on your electronics or radio bookshelf enjoy introduction xiii

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