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BAND RECEIVER - Listen -In to Dramatic Radio Communications from Pilots, Ground Controllers, and More

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BAND RECEIVER - Listen -In to Dramatic Radio Communications from Pilots, Ground Controllers, and More (,jg 48784 SPOTLIGHT ON HOME THEATE JANUARY 1993 , BUILD AN AVIATION -BAND RECEIVER - Listen -in to dramatic radio communications from pilots, ground controllers, and more BUILD A DOG -BARK INHIBITOR Give yourself and your neighbors some peace and quiet with this training aid that humanely curbs your dog's barking GERNSBACK PUBLICATION NAVIGATION SYSTEMS TOR YOUR CAR Learn about on -board navigation systems, satellite positioning, SQUELCH' ° VO roadside beacons, : o E . and more POWER TUNE. ' E UNDERSTANDING RAMSEY MIÑf1RECEIVÉR -MICROPROCESSORS We all know what micro- processors do, but how many of us understand how they work? Product Reviews 3 NEW FactCards Also: IN THIS ISSUE Scanner Scene Computer Bits 01 Antique Radio Think Tank Radio DX Listening $3.50 U.S. Ham $3.95 CANADA And A Whole Lot More! 71 896 48784 8 - . AmericanRadioHistory.Com IP 7 Electronics Paperback Books GREAT PAPERBACKS AT SPECIAL PRICES O BP248-TEST BP267-HOW TO BP265-MORE Vii,. i.uww:ur. w BP256-INTRO TO MorAGAetowd EQUIPMENT CON- + Tut Equipment HarbUr IUSE OSCILLO- ADVANCED USES Wesotaw .-w ---.r LOUDSPEAKERS cnnewpdpn warm kluhknehr STRUCTION d otn«Ten SCOPES AND OF THE MULTI - AND ENCLOSURE $5.95. Details con- ~TOM OTHER TEST EQUIP- METER $5.95. Use DESIGN $5.95. We struction of simple. in- MENT $6.95. Mas- these techniques to explore the variety of expensive, but ex- tering the oscilloscope test and analyze the enclosure and speaker tremely useful test is not really too difficult. performance of a vari- designs in use today so equipment. AF Gen, This book explains all ety of components. the reader can under- Test Bench Ampl, Au- the standard controls Also see how to build stand the principles in- dio Millivoltmeter, Tran- and functions. 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BP195-INTRODUCTION TO SATELLITE TV $9.95. A definitive introduction to BP239-GETT1NG THE MOST FROM YOUR MULTIMETER $5.95. Covers the subject written for the professional engineer, electronics enthusiast, Or others basics of analog and digital meters. Methods of component testing includes who want to know more before they buy. 10 in. 8'x transistors, thyristors, resistors, capacitors and other active and passive devices. BP190-ADVANCED ELECTRONIC SECURITY PROJECTS $5.95. Includes a passive infra-red detector, a fiber-optic loop alarm, computer -based alarms and an BP97-IC PROJECTS FOR BEGINNERS $5.50. Power supplies, radio and unusual form of ultrasonic intruder detector. audio circuits, oscillators, timers, switches, and more. If you can use a soldering iron you can build these devices. BP235-POWER SELECTOR GUIDE $10.00. Complete guide to semiconduc- tor power devices. More than 1000 power handling devices are included. They are BP37-50 PROJECTS USING RELAYS, SCR'S 8 TRIACS.....$5.50. Build pri- tabulated in alpha -numeric sequency, by technical specs. Includes power diodes, ority indicators, light modulators, warning devices, light dimmers and more. Thyristors, Triacs, Power Transistors and FET's. SELECTOR GUIDE Companion volume to BP234-TRANSISTOR $10.00. RADIO -100 RADIO HOOKUPS 53.00. Reprint of 1924 booklet presents radio BP235. Book covers more than 1400 JEDEC, JIS, and brand -specific devices. Also circuits of the era including regenerative, neutrodyne, reflex & more. contains listing by case type, and electronic parameters. Includes Darlington transistors, high -voltage devices, high -current devices, high power devices. BP42-SIMPLE LED CIRCUITS $5.50. A large selection of simple applications Here BP99-MINI-MATRIX BOARD PROJECTS $5.50. are 20 useful circuits for this simple electronic component. that can be built on a mini -matrix board that is just 24 holes by ten copper -foil strips. BP117-PRACTICAL ELECTRONIC BUILDING BLOCKS-Book 1 $5.75. BP122-AUDIO AMPLIFIER CONSTRUCTION $5.75. Construction details for Oscillators, Timers, Noise Generators, Rectifiers, Comparators, Triggers and more. preamps and power amplifiers up through a 100 -watt DC -coupled FED amplifier. BP184-INTRO TO 68000 ASSEMBLY LANGUAGE $6.95. The 68000 is a great new breed of microprocessor. Programming in assembly language increases BP92-CRYSTAL SET CONSTRUCTION..... $5.50. Everything you need to know the running speed of your programs. Here's what you need to know. about building crystal radio receivers. i--1 BP255-INTERNATIONAL RADIO BP179-ELECTRONIC CIRCUITS STATIONS GUIDE $7.95. Provides FOR THE COMPUTER CONTROL OF the casual listened, amateur radio DXer ROBOTS $7.50. Data and circuits for CHECK OFF and the professional radio monitor with an interfacing the computer to the robots essential reference work designed to motors and sensors. THE BOOKS YOU WANT guide him or her around than ever more complex radio bands. SHIPPING CHARGES IN ELECTRONIC TECHNOLOGY TODAY INC. USA AND CANADA SORRY No orders accepted Number of books ordered 1 I PO. Box 240, Massapequa Park, NY 11762-0240 outside of USA & Canada to $0.01 $5.00 $1.50 Total price of merchandise $ $5.01 to $10.00 $2.50 Name Shipp ng (see chart) $ to $10.01 20.00 $3.50 Subtotal $ Address $20.01 to 30.00 $4.50 Sales Tax (NYS only) $ $30.01 to 40.00 $5.50 City State Zip Total Enclosed $ $40.01 to 50.00 $6.50 PE193 $50.01 and above $8.00 All payments must be in U.S. funds AmericanRadioHistory.Com JANUARY 1993, VOLUME 10, NO. 1 o _o ec mines THE MAGAZINE FOR THE ELECTRONICS ACTIVIST! CONSTRUCTION ARTICLES BUILD AN AVIATION RECEIVER Fred Blechman 31 Join a growing throng of listening enthusiasts who tune in to the drama of aircraft communications BUILD A DOG BARK INHIBITOR Robert J. Gaffigan Jr. 36 Give yourself and your neighbors some peace and quiet with this humane training aid A TELEPHONE LINE -IN -USE INDICATOR Michael A. Covington 43 Keep others from barging in on your telephone conversations with a simple line -monitor circuit BUILD A WIRE TRACER Charles D. Rakes 45 Cut those tough home -repair and remodeling jobs down to size with this wire -tracing circuit FEATURE ARTICLES ON -BOARD NAVIGATION SYSTEMS FOR YOUR CAR Bill Siuru 39 Satellite positioning, roadside beacons, and other new developments to help drivers stay on course TRACKING DISTANT SIGNALS Laura Quarantiello 47 By monitoring the VHF low-band for skip, you could easily make some wonderful long-distance contacts ALL ABOUT MICROPROCESSORS Timothy D. Green 59 We explore what makes these powerful chips tick in an informative but intuitive style THE CODE MAKERS Larry Lisle 63 Trace the history of code and code -sending gear from the early days to today's computerized equipment PRODUCT REVIEWS GIZMO 5 Spotlight on home theater: Sharp Sharpvision LCD Projector; Carver A/V Receiver; Cerwin-Vega Sensurround Speaker Systems; and much more HANDS-ON REPORT 22 Heath/Reflex Wireless Doorbell PRODUCT TEST REPORT Len Feldman 26 Cannon UC1 8mm Camcorder COLUMNS ANTIQUE RADIO Marc Ellis 65 The Sky Buddy: All together again COMPUTER BITS Jeff Holtzman 67 The XT syndrome CIRCUIT CIRCUS Charles D. Rakes 70 UJT circuits THINK TANK John Yacono 72 RF bulbs DX LISTENING Don Jensen 75 Targeting the world HAM RADIO Joseph J.
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