Broadcasting Equipment (It's Verified)
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SEPTEMBER 1976 90ADCAST MAP IENT/ENC-11' It Source '76: Most Complete And Reliable Guide To Broadcasting Equipment (it's verified) 1.aJ,\Fra.. / A AU Radii 2 ANTENNAS/TOWERS/ LINES Audio Controls TRANSMISSION NTS/ MAMMA /SY .e .1 , LIG '4` E OUIPmHTIMG/ST E uolo. tfr/SE r DES arioa"*** . too' Spa.' Mlsasomm ..or **V.'"? S4,X. l for/ PS a Arnnar 84 docls iint GAF. HarwcNOd l oP Canters Lan.. Anossaus 8L Can Commop Comma, 414 GAF Alan Gordon Hero SkInorM1 Tap. 2. Camara Tripods a films 6 Sawyer Cinema Produ Bairn e ttinclard ascsarioriao quip. Eclair GAF Alan Gordon H sc./es/Mem R'sssese,/: novanve TV RCA. .771 Mme. Carrying Cinema Produels Comps) Eclair Fr rf Carom v./nocr Ilnl GAF. Gard Camara Alan G) * Kodak Olean' Ztr'r* 412PAl'aira!!:4;11. " 144"arap;':Z!:S73.1:*:::a24R::;:F;;F '"" Flan Compuip Fur OAF' Soda, CCA CncA'RSC4; In) ' v Film Camel Olean NM4111111. Film Clemson Conmom Kodak. Upowas)man www.americanradiohistory.com Ward-Beck at the XXI Olympiad The XXI Olympiad, a dedication to Ward-Beck is proud to have been excellence within the framework of chosen by Canadian Broadcasting competition. A challenge for the ath- Corporation to supply WBS 75046 letes. A challenge for the supporting Mobile Audio Consoles to broadcast communications equipment. the 1976(was) Olympic Games to the world. Tomorrow's Technology Today. Ward-Beck Systems Ltd., 841 Progress Avenue, Scarborough, Ontario M1H 2X4 Telephone (416) 438-6550. Telex 06-23469 Ward-Beck Systems Inc., 290 Larkin Street, Buffalo, N.Y. 14210 Circle 120 on Reeder Service Card www.americanradiohistory.com fix Incliona Now we can refurbish cy le Mark XV, Max. OCT-191976 iat makes us number one the world in quad head apability." "And that's the truth." IDEOMAX NOW REFWBISHES MORE KINDS F QUAD HEADS THAN ANY OTHER COMPANY IN THE WORLD. You now have a single source for refurbishing RCA High Band and Low Band video heads and the Ampex Mark Ill, Mark X and Mark XV heads. No other refurbisher works harder at satisfying a broader range of customer services than Videomax. TM videomax Videomax Corporation, An Orrox Company 3303 Scott Boulevard, Santa Clara, CA 95050 Phone: (408) 988-2000 Telex: 910-338-0554 SALES & SERVICE - New York: (212)947-8031, Los Angeles: (213)980-7927, Atlanta. (404)992-4490 Circle 121 on Reader Service Card www.americanradiohistory.com ..iii BROADCAST MANAGEMENT /ENGINEERING SEPTEMBER 1976/VOLUME 12/NUMBER 9 6 Broadcast Industry News FM overtakes AM in 2 top markets; AM stereo to be discussed; mini-equipment scores at the Republican National Convention News Briefs p. 23 Business Briefs p. 25 People p. 174 28 FCC Rules & Regulations Multiple ownership rules, corporate ownership reporting rules amended 34 A Speak Out Series-Do You Need a Recording Type Console in Broadcast Applications? No says Carroll Cunningham of Dyma Engineering. Qualified yeses from Bob Ward of Auditronics and Nicholas Balsamo of Automated Processes 41 "True" Station Value Is Key Ingredient In Broadcast Financing An AM-FM station obtained a $2 million loan and a number of other advantages 46 How Similar Strategy Helps Three Different Stations Maintain Popularity In The Same Market Area Three different stations programmed to different audiences approach the problem of getting listeners in much the same way 50 Understanding Antenna Tuning Units The mystique of coils and capacitors clears up once it is understood that antenna tuning units behave like quarter-wave transmission-line transformers THE SOURCE 1976 'ABP 57 Instant Source Locator BROADBAND Who makes it; 10 categories & over 180 subcategories of broadcast & cable INFORMATION SERVICES, INC. equipment, by manufacturer 295 Madison Ave. New York, N.Y. 10017 212-685-5320 75 Broadcast Equipment Manufacturers Names, addresses, telephone numbers, product descriptions-all verified Editor James A. Lippke 118 Independent Broadcast Reps/Distributors Senior Editor All major reps/distributors organized by state Robin Lanier 152 Measuring Television Transmitter Noise Associate Editor Four alternative noise measurements are described to get a true David Hawthorne picture of TV transmitter performance Art Director Gus Sauter 158 Great Idea Contest Six new great ideas to read about Manager Publication Services 164 Broadcast Equipment Djuna Zellmer BM/E's survey of new products Editorial/Production Assistant Janelle Seal 171 New Literature Circulation Manager Useful new reading material Sharon Fanelli BM/E, BROADCAST MANAGEMENT/ENGINEERING, is published monthly by Broadband Information FCC Counsel Services, Inc. All notices pertaining to undeliverable mail or subscriptions should be addressed to 296 Pittman Lovett Ford Madison Ave., New York, N.Y. 10017. BM/E is circulated without charge to those responsible for sfOrn operation and for specifying and authorizing the purchase of equipment used in broadcast facilities. These facilities and Hennessey include AM, FM, and TV broadcast stations; CAN systems; ETV stations; networks and studios; audio and video recording studios; consultants, etc. Subscription prices to others: $15.00 one year, $25.00 two years. Foreign: $20.00 en Publisher one year, $35.00 two years. Foreign Air Mail: additional $24.00. Copyright , 1976 by Broadband Information Services. Charles C. Lenz Jr. Inc., New York City. Controlled circulation postage paid at East Stroudsburg, PA. SEPTEMBER, 197 4 www.americanradiohistory.com GRASS VALLEY GROUP Mod©Hil '_80E)=ITE. Switching System... Cs 0 i2) _Ef I00000 1.16-macomp- ,t a c; 0 0 Q Q 0 "Irr..04.- 0 0 0 0 0 000000000 Ill DZ!-iru O (71-FITTTTFTFITTTFFFUL -CDC] gm 11111111111111111111111 111111.11111111 tcp- CI-1 C-3 ranarir3 a immanaisainsmn eig LL1 kl filflaralflriflrt JB ralrx;r3:-..-1:717 111615SSIENIMMINSIMINIMMIIM 1 t fEIETTT-3 - B EITEDEEMITEME11ffillq t UT3 c 6-0-6 With Rotational Wipe Effects Model 1600-7K is a 24-input, 8-output, pro- bordered wipe operation is available with duction switcher with 3 mix/effects systems, most rotary patterns. plus program and preset buses with flip-flop mixing. Each mix/effects system provides Selection of a pivotal wipe is obtained by both rotary and conventional wipe effects. depressing a unique pattern button. Selec- tion of the rotational mode or splitting Several types of rotational transitions are mode for conventional patterns is achieved possible, for example wipes which pivot by first selecting the conventional pattern about a fixed point to produce a clock, wind- (e.g., a square), followed by operation of a shield wiper, or fan effect. The rotational "shift" key. A total of 54 patterns is avail- feature can also be applied to many conven- able. tional patterns to produce either a rotational effect or a splitting effect. A square or a Model 1600-7K is also available in PAL and group of 4 squares can be made to rotate as PAL-M versions. For additional information they expand in size. Separation of the transi- on the system, including a demonstration tion control levers allows independent con- video tape, contact your nearest Grass trol of size and rotation. Soft wipe and Valley Group field office. THE GRASS VALLEY GROUP, INC. A TEKTRONIX COMPANY Station Plaza East 4419 Van Nuys Blvd, Ste 307 1644 Tullie Cir, NE P.O. Box 482 810 W Bristol Street GREAT NECK, NY 11021 SHERMAN OAKS, CA 91403 ATLANTA, GA 30329 MABANK, TX 75147 ELKHART, IN 46514 (516) 487-1311 (213) 990-6172 (404) 634-0521 (214) 8871181 (219) 264-0931 www.americanradiohistory.com BROADCAST INDUSTRY FM Beats AM In Two listing requirements for inclusion in in Washington, D.C. will fe Arbitron reports has increased 31% in papers by prominent communicatia Top Ten Markets the last six years. In the top ten engineers and policymakers includit Dallas-Fort Worth and Washington, markets, FM almost numbers the same "AM Stereo Broadcasting-A Ne D.C. are two top-ten markets found to as AM. The average ratio is 17 (FM) to Approach," by N.W. Parker and F.1 have FM shares higher than AM ac- 18 (AM). Hilbert; a dikussion of "Public Broa cording to a special Arbitron radio casting Satellite Interconnectic study. Dallas-Fort Worth's FM share The National Radio Broadcasters Con- Systems," by John E.D. Ball; as for the April/May 1976 survey is 48.5, ference, San Francisco, Sept. 19-22, "AREAPOP-A Broadcast Coverai up 27% in one year, while AM stations was previewed in August. An up-to-the Prediction Model," by Edmund a pulled a 45.1 for the most current minute report is covered in BM/E's San Williams of the Public Broadcastia sweep. Washington, D.C.'s FM share Francisco Survival Guide mailed to System. is 46.2, up from a 40.7 last year, and pre-registrants. Lionel Van Deer lin, chairman of tl against an AM total of 44.9 for April/ House Subcommittee on Commus May 1976. In the ten markets analyzed, AM Stereo Topic At cations, and Robert D. Briskman, a on an average, FM shares are up almost sistant vice president of COMP 100% from April 1970 to April 1976 IEEE Broadcast Meet General Corp., will deliver lunch* and up 10% in the past year alone. The 26th Annual Broadcast Sympo- addresses. For additional inforrnatis Arbitron, since 1966. has used uni- sium of the Institute of Electrical and contact: Vic Nicholson, Chairma form measurement standards to survey Electronic Engineers' (IEEE) Broad- IEEE B-G Symposium, Cable TV I both AM and FM radio audiences. The cast Group scheduled for September 23 formation Center, 2100 M Si number of FM stations meeting in the to 24, 1976 at The Washington Hotel, N.W.-Suite 412, Washington, D.' 20037, (202) 872-8888. Logging Rules Modified t Portable For AM, FM, TV Equipment In another aspect of deregulation, t r, FCC has: At The Republican Deleted the requirement for ii National Convention tialling changes on logs, as long as I log-keeper, when signing off, certif The RCA TK-76 ENG camera that all is correct, including a and the JVC CR4400U port- changes; for automatic logging s: able video cassette recorder tems, the person responsible must o (with TRI's SUN time code tify that he inspected the equipment added) were used generator the close of his duty and certify that by KCMO-TV to cover Yippie it work a - demonstrations, airport arri- the best of his knowledge vals, hotel goings-on, etc.