Communications World
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commu ìcãtion INCLUDING THE COMPLETE WHITE'S RADIO LOG w RL i AM- FM -TV- SHORTWAVE SPRING -SUMMER $1.35 cc 02003 By the Editors of ELEMENTARY ELECTRONICS EXCLIJSIVE 7 ACTION BANDRADIO for everyone! BONUS Rear what's happening it your community - tune in Police, Weather, Fire, Railroads, Coast Guard, Ambulance, Aircraft, Feds, Taxi, Marine Telephone -24 hours a day! SHDIITWRUE LISTEDID for everyone! Discover this world -wide hobby- detect distant and exotic programs -how to be a QSL winger- extensive shortwave lists understand GMT -tips on radio clubs and much, much more! I egency 20- Channel, 11 '.25 30 .35 .40 . i z 6 -Band Scanner and .. ...... ealistic DX -160 ommunicatians Receiver ulnl u, t s s i2 11--=3m nil 3.5 .,. Ili-1 I. ,,1 1 LS 1 1 rl, 10 4 ; G 11 Mm 11 115Ii a. 13 l I.I II 20 21 29 II 11 19 u t1 291tr I I 11 3111 30 Get started in CB RADIO TODAY- Join the exciting hobby of two -way radio! Add pleasure and protection to your life style! IFIIIiIIIIYIII III 111II .r l^ lr%NI7üial¢tii,trgll64l BLWAIMMOXJ g*M9' aJ1FJW~ui0?a14t FIRST CLASS a...,., u.,. ;01,746e/ IC/ I I° J I [ ' f"9( rci DWAE`!M!l7a_C\ l 4"-ec. ,....C// CIE's FCC LICENSEE WARRANTY OF SUCCESS CIE warrants that when you enroll in any CIE course which includes FCC License preparation, you will, upon successful completion of the course and the FCC License material, pass the Government FCC Examination for the License for which your course prepared you. If you do not pass the appro- priate FCC Examination, you will be entitled to a full refund of an amount equal to the cash price for CIE's "First Class FCC License Course,' No. 3. This warranty will remain in effect from the date of your enrollment to 90 days after the expiration ur x. of the completion time allowed for your course. s®F ¡l`7/EtGWGCSIk \J CIE's Warranty says a lot to you! A lot about CIE's FCC License training program, designed by experts to give you the best in Electronics programs...and a lot more about our school. home-study education. Send for FREE school catalog Our FCC License Warranty means just what it says. If you Discover more about the career opportunities open to people enroll in any CIE career course that includes FCC License pre- with electronics training. Learn how CIE career courses can paration and successfully complete your training ... you'll pass help you build new skills and knowledge and prepare you for the Government FCC exam. We warrant that you'll succeed. a meaningful, rewarding career. Whether you are just starting CIE can make this no- nonsense warranty because we're con- out in Electronics or are a college- trained engineer in need of fident of our in -depth career training programs. You see, we updating, (or anywhere in between), CIE has a course designed have specialized exclusively in Electronics education -by -mail for you. for more than 40 years. Just Electronics. And, the courses we Send today for our FREE school catalog and booklet on offer today are the result of these years of teaching experience FCC License information. For your convenience, we will try and proven methods of training. to have a representative call to assist in course selection. Mail Our courses are thorough ... written in easy -to-understand reply card or coupon to CIE or write: Cleveland Institute language so you can progess at your own learning pace, ... ... of Electronics, Inc., 1776 East 17th Street, Cleveland, Ohio at home, in your spare time. And, there are never any class- 44114. Do it TODAY. rooms to attend. CIE courses challenge your thinking ... help you develop G.I. Bill benefits your understanding of important electronics theories and ap- All CIE career courses are approved for educational benefits plications ... enable you to learn new skills and knowledge. under the G.I. Bill. If you are a Veteran or in service now, If an FCC "ticket" is part of your career goal, you'll have check box for G.I. Bill information. to pass a tough licensing exam administered by the Federal Communications Commission (an agency of the U.S. Govern- r Cleveland Institute of Electronics, Inc. ment). And you'll be prepared. Based on a series of continuing CIE 1776 East 17th Street. Cleveland, Ohio 44114 surveys, close to 9 out of 10 CIE grads pass their FCC exams! Accredited Member Natrona! Home Study Council Yes, I want your FREE school catalog and career information What's a license worth? package today. I am especially interested in: In some communications job fields, federal law requires that Electronics Technology Industrial Electronics you have an FCC License. And, even in careers where a license FCC License Preparation Electronics Engineering be to prospective em- Color TV Maintenance Other is not required, it can valuable evidence Mobile Communications ployers of certain electronics knowledge and skills. Cw-o7 Cw-oa What about other CIE courses? Print Name In every CIE career course, you'll find the same time-tested Address Apt. instructional techniques that have made CIE's FCC License City preparation courses so successful. State Zip Age Whichever CIE course you select (beginner, intermediate, Check box for G.I. Bill information. Veteran On Active Duty or advanced college -level); it will be a complete educational L J -aretatikm COMMUNICATIONS WORLD ELECTRONICS Box 1849, G.P.O., New York, New York 10001 INFORMATION Spring /Summer 1976 Void after May 13, 1976 1 2 3 4 5 6 7 8 9 10 CENTER 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 We would like to know about you. Please help us by placing an "X" in the appropriate boxes. Do you own a CB transceiver? 76 Yes 77 No If FREE FELL your answer is Yes, please check appropriate boxes below if you have one or more of the types indicated. 78 Base Station 79 Mobile Unit 80 Port- TO ALL READERS OF OUT able Do you use CB in your work? 81 Fl Yes 82 No COMMUNICATIONS AND WORLD MAIL Name (print clearly) At no cost to you the TODAY! Editor will have Address information and literature about products City State Zip Code and services advertised in this issue sent to you at no cost! COMMUNICATIONS WORLD YOU SIMPLY Box 1849, G.P.O., New York, New York 10001 Spring /Summer 1976 Void after May 13, 1976 Tear out the coupon. 1 2 3 4 5 6 7 8 9 10 Circle the number under the ad that 11 12 13 14 15 16 17 18 19 20 interests you. 21 22 23 24 25 26 27 28 29 30 Circle the number We would like to know about you. Please help us by placing an in identifying products "X" the appropriate boxes. Do you a CB 76 mentioned in col- own transceiver? Yes 7 Li No If umns and articles. FILL your answer is Yes, please check appropriate boxes below if you have one or more of the types indicated. 78 Base Station 79 Mobile Unit 80 Port- If you wish, answer OUT able Do you use CB in your work? 81 Yes 82 No the simple question- AND naire on the coupon. MAIL Name (print clearly) Print or type your DAY! name and address Address on the coupon. Mail to COMMUNICATIONS City State Zip Code WORLD before the expiration date. Please allow 4 -6 weeks COMMUNICATIONS WORLD for delivery. Box 1849, G.P.O., New York, New York 10001 Spring /Summer 1976 Void after May 13, 1976 DO IT TODAY 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 COMMUNICATIONS We would like to know about you. Please help us by placing an "X" in the WORLD wants you to appropriate boxes. Do you own a CB transceiver? 76 Yes 77 No If get all the product FILL your answer is Yes, please check appropriate boxes below if you have one or information as soon as OUT more of the types indicated. 78 Base Station 79 Mobile 60 possible -but you have to Unit Port- get the ball rolling! AND able Do you use CB in your work? 81 Cl Yes 82 No MAIL Name (print clearly) TODAY! Address City State Zip Code COMMUNICATIONS WORLD /'Sprlrlg- Su1Tmm1ler 1976 3 communications I 0 LiesSIINIr. saw D SPRING /SUMMER 1976 CONTENTS THE STAFF The Only Perfect Log Three Frequency Classes For You Editor -in -Chief Julian S. Martin, WA2CQL the How Radio Signals Travel Gluttons . Haunting Graveyard Associate Editor Seasons Make a Difference When the Bigmouths Shut Up Christine Begole Onward and Upward Lands of the Limbo Hula Heaven Communications Editor Bands Across the Water Sounds of Incantations Switch- Don Jensen ing to Shortwave Frequency vs. Wavelength Around the Technical Editor W1HFI World by SW Looking Southward South America Take It Charles Graham, You? News Editor Away The European Scene William Tell, Where Are Stephen B. Gray Trail The Big Four Beyond the Iron Curtain African SW Citizens Band Editor Tune In the Commercials Parlez -Vous Francais? Middle Kathi Martin, KGK3916 East Broadcasting South Seas Shortwave Across the Pond Production Manager Five Hours Forward Midsummer Is Midsummer The Hour Hui Wang Midnight The Interference Problem FM DXing in Assistant Production Manager Before Philip Clark On the High Hertz Where the Action Is Tunable Europe Art Director vs.