The Tennessean from Nashville, Tennessee • Page 74

1 THE NASHVILLE TENNESSEAN, Sunday Morning, Aug. 13. 19S0 -TV How Many Dishes Do You See? 1012 when thousands of air rairl Education Dates to 1942 JKIeibacker Gets Production Post There's Standing Room Only Up Where 'Kilocycles Kaper' First mass education by television!) cceived their instructions via re was J'Run J'y CA Bmi In ceivers Installed In police stations. i AN ORCHID JO nix ymt-i Radio Spectrum 'Busting at Seams' With AM, FM, TV By WAYNE OLIVER Associated Press Science Writer NEW YORK Television has normously complicated the problems of our use of the air waves becausa It takes up much pace. One of the prime reason the Federal Cummunicutiorui Commission has frozen peimits for new video stations sine" October, 1348.

is to decide jut how much of the radio spectrum is to be given over to television. The radio spectrum is the vhole range of electronic waves that can be sent out over the air. covers not only standard or AM radio by which we tune in our favorite comedians, hut the whole radio family which In-' eludes television, short wave, transatlantic telephone, ship-to-shore, mobile telephone, wireless telepraphy. radar and a hiwt of other services. Of all these, television takes up by far the most space on the radio spectrum.

That's because of the tremendous number of impulses required to produce television's 30 pictures a second. The engineers speak of it In terms of "information." The more information you have to transmit, the more space you take up on the air-the mora the traffic the wider the highway ha to be. Thia spectrum is measured in frequencies of the waves in cycles per second, kilocycles and megacycles. Standard or AM radio requires a channel on the air only JO kilocycles cycles to transmit the human voice plus music with reasonably good fidelity. 600 Times as Wide Frequency modulation radio, with high fidelity reproduction, takes a channel 20 times as wide -or 200 kilocycles.

And a single television channel requires six megacycles- 6, 000,000 cycles-or fiOO times as much space as a standard radio channel. In fact, one television chan- Television is i to Nashville and the folks at Tom Harrison are proud of all those back of this new entertain ment for the home, and in ou traditional W3y say: "An Orchid to VVSM-TV." i I j) I 1 1 Former Playhouse Head Will Help Direct Local Programming One of the guiding hands in programming end in the product inn of local presentations at WHV1 TV will he Fritz Kleihaeker. former director cf the Nashville Community I'layhouse. Kleihaeker has a varied background of theatrical and writing experience nnd during World War II wns assigned to produce film bulletins and training films for the army. Itu was graduated with honors from Bowdoiri college, later attending the drama school at Yale university.

At the latter Institution ho did graduate work in plavwri'-ing end play production under IV Riker. Alexander Pean, and John Mason nnd was associated with a theaier group that Included Van Heflln, now a Hollywood nctur. Later Kleihaeker, Heflin and other foimer Yalo students organized the Experimental Theater in Ni Yor whose productions included Klelhacker's play, "John Micheljohn," As a Rockefeller fellow, Klei-bticker attended the University of lown and obtained the M. A. do glee, lie then served as dliecloi of the Cedar Rapids playhouse before accepting a similar position Nashville.

t'nder bis leadership, the Nash vllle playhouse rrtse to national prominence and was listed hy evalu atlng hoards among the 10 best in he I'nlted Slates. Haunt Your Set? A Jalopy May Be Passing HARRISON FLOWERS WEST END AT 21 st Phone 4-1 S91 Mmy iksirt.r '---ifiif'iW-r'ftiiiirA'i iiiriM Atop New York's skycrapinq FTCA bmldinq is lodged the new NBC television plexiylass radonie hooiing receiving equipment for television. It's all-weather proof cool in summer, warm in winter as vie MacDonncll. nrettv video stir, can atter.t after insnectina nel takes tip nearly idx times as much space as all the channels assigned to standard radio from one end of the dial to the other. We now have 12 television channels in use, They are In the region of the spectrum classified ss very high frequencies (VHP).

The FCC. when it lifts the freeze, plans also to open up some 40 additional channels at ill higher in the spectrum in the Ultra high frequencies (UHF). Thin will give you an idea of the differences In the present frequencies and those proposed: The present 12 video rhanneLs in VHF are between f4 and 21(1 megacycles. The new ones will he in the UHF range between 485 and megacycles. Other Radio Services Standard radio Is much farther down the ladder, between firtO and lfiOO kilocycles.

Kelow standard radio and nbove it all the way to the start of television you'll find all manner of radio services, including ships, police and fire departments, amateur and the like. But even after you get to the start of the present, television channels, you don't find a solid slice of the spectrum devoted to video. You start with channel 2, because the FCC took away from television the space originally designated channel 1. You find TV solid through channel 4, which is 6H to 72 megacycles. Then sandwiched between channels four and five Is a space four niejrarvi'les wide devoted to mobile telephone and other point-to-point radio communications.

Channels 5 and 6 are in order, but there's a hig gap between channel 6, which ends at 88 megacycles, and channel 7, which starts at 174. In this gap i.s all of frequency modulation radio, which runs from 1)2 to 108 megacycles. Other services in the gap include aviation communications and navigation aids, more amateur and mobile telephone channels and a number of government channels. Leaves Big Gap From the lower end of channel 7. and 174 megacycles, to the top of channel at 21fl megacycles, the remainder of the video segment is unbroken.

Dut from the present channel 13 in VHF to the first channel in the proposed ultra high frequencies will he a huge gap to be filled by other nervices. Among them are channels for experimental use lor such purposes as guided missiles and automatic control devices. Electronics scientists have continuously expanded the usable radio spectrum by developing higher and still higher frequencies. But as fast as they add space to the spectrum, there are new demands for so that, there's still a shortage. That's why television, with its huge space requirements, can't simply spill over at the top of its present upper limit-channel 13.

The frequencies, or channels, already are being ucd up there so video will have to climb a couple more flights of stairs for additional room in the L'HB' attic. rT7 In more lecenl years he has en Automobile ignition systems arc; the "Gremlins" which most re-! quently cause distorted images on1 home television sets, according to Electrical World, a national science i publication. I The magazine says that contrary! to popular belief, power systems seldom cause interference on TV. After automobiles, the magazine' and many are still used in hall -J ways, bathrooms and other places' where the amount of light is not' of prime importance. Electronic garage openers some-i times produce vertical or leaning! corduroy lines on the television! scicen.

This type interfetenre is not likely to bother Nashville TV) set owners because it usually falls' the "dish" which serves as a receiving antenna for remote tele-I vision pickups. Step Right This Way Folks, You'U Get Right Answers A it (Ay I in channels 11, 12, and 1.1, and Nashville's TV signals are In channel 4. Appliances Home appliances such as vacuum cleaners, electric sewing machines, electric and so t'orlh sometimes cause1 interference much like that caused by ignition systems, except for a more consistent screen pattern, showing a horizontal streak. This interference takes i Here are the answer to the unestinns which jiei" Nashville set iHsking frerjui'ii! ly of '(list I ibutors. lelevi si-: vie and WS.M TV: pi.v.

er i'r the -el. Tlie average re rrlvr tliiiu one cent an hn i to upei at e. 0. How bi' is th? picture I can 'jet on a set A. I1 di upon the size of I nlie in I et anil nlso len i'S in the iloectlol and medium -t ha ac eetis fi 0111 1 2 1 1 I Q.

Will I nt'id a separate st to 1 pick the sonntl that tvpe the television receiver? tw" A No. A (et iw- the pictiiie and sound, proilrn-, i ft I k. .1,1. ill si'ts lists these causes in order of nuis-' ance value and severity; (1) Old diathermy equipment '(sunlamps); CI) old-type tungsten-: filament lamps; Co) some germicidal lamps; (4) various radio; transmitting units; i7ji some elec-j tronic garage openers; fi heating equipment; 7t some customer-owned household (8) power line noises. Keep a Log Best clues to the source of television interference can he obtained; from a record or log of the exact; day and time the interference1 started and the duration of ench interference period, however large or small.

The type of interference1 also indicates the cause of the trouble. For instance, Ignition systems on Mimi old models of cars produce' broken horizontal lines across the picture. Old-type, self-excited, sclf-recti-j fied diathermy equipment operating at random in the radio; frequency spectrum, produces aj heavy black band across the pic-! place in a local area, generally! within 100 feet of the screen. Worst offenders are commutat-ing motors and thermostats in1 heating appliances, particularly those thermostats that do not have; lert-ii-es art as the ard (AM) radio brotdrasts and Q. Wi.l I need an outside an-' regular FM broadcasts a tele tenna? (tV cot? A Alilenni I eimi eeliu-nl will I The Name I A.

That depends upon the set Cenerally, re Famous in IT he average set at present lirines 1 1 W'siM-ei- ,,.,11 a snap action to interrupt the circuit. Tests indicate little nr no interference from power lines under normal operating conditions even with the video antenna only 20 to SO feet from the energized circuits. During the last 18 months, onlv a dozen out of many cases of inter If I I i onlv the IV ph-tuie and Us sound. ni-ieeil (., .1 n.lnil ltll llUill HI Of IlldlMir alllenliae. In some spnis Hillside antenna' I I A bianKeis ti.av be ncidml.

'-'0 miles FM, li a and phonograph. Q. How much doss a television ant rrtct fiom the station, outside anlennaej are n'M-i -tarv usually. ference were traced to power lines. u.

11 ci 11 11 it to tune in my et? 1' i varv consi-l' i ably Table models with inch sn. I 1 1 The Woolen Mills Company A I ''A 4 1 1 SPIINGIKIO, IINNISSil ACj'Plll iliL llllllliliiiiiiiiiiiimiii(ini(l (7 i Yon nieielv switch a knoli sell fo as little as $150 Multiple d. clciinel lU'SM TV be on Cli.innel I This auto purpose console nioileis as high as $3.0.10 to $4 00(1 The aver Means See? fr equently Is used as a synonym for "television," Technically, it refers to that, part of the television signal that contains the picture. It is derived from the Latin word meaning "I see." mat ii. -illy brings in the television' lure.

Jt cnanges to a light irregular S-shaped vertical pattern when the interference has less intensity. Old Light Bulb's Old-type tungsten-filament lamps produce approximately the same pattern, except for duration. These old lamps have extremely long life 1 1 Von then m-ile. Q. How much will it cost to op- justmenls necessary for I eraiB ieif vision set in iiii mcy, clarity and volume of I A.

It depends on the sie and sound. i Fritz Kleihaeker HARVEYS IS OPEN EVERY MONDAY NIGHT TILL 9 4 iwm 1 I it 'w 1 i i ii.ii i i I ff "I IVIKir, PlfTURF fi i 1 fx i Television from H.arveys Bendix "Living Picture" television gives you all the picture, clearer and brighter, a-, a result of the new rectangular Dark Face tube. You see the picture as it is seen by the television camera, without any clipped corners, just as though you were there "in person." The picture you see is clearer and sharper, with greater light and dark contrasts, plus more detail in the darker areas. Add to all this Bendix built-in antenna, instant tuning controls and super-sensitive reception that rejects interference! See Bendix today at Harveys where you get the advantages of easy-payment plans and a service contract that assures satisfactory performance! Mail phone orders filled. Shipped express collect outsidt Harveys motor delivery area plus Saks Tan.

HARVEYS TELEVISION FLOOR, BALCONY, EAST BUIIDINC -w rr 1 I fx M-r rsr mJL I ioi'f Compact 14-in. Table Model Television Set A triumph of Bend-x engineering skill and design! Life 4. like pictures on the 14-in. rectangular dark face tube 95 1 16-in. TV AM-FM Radio-Phonograph Combination A superb instrument and furniture piece! Clear, sharp, more fully detailed pictures on the new 16" rectangular tube.

Bendix circuit design assures stable, uniform pictures. AM-FM radio is power-packed and super-sensitive with a clear high fidelity tone. Record play- (l95 er plays records A 4 automatically. Handsome tra- i ditionaily designed cabinet in Model 6100 mahogany veneers. 169 h-gh-quality FM sound, built-in antenna, plug-in for phonograph all in a compact cabinet of contemporary styling mahogany vencer.

plus tax i Model 2051 tf i 4. I 5 i H4 I I 2 3 Right: Modern Styled 14-in. Television Console Set All of the Bendix engineered features are yours in this handsome console receiver. See all the picture on the 14" rectangular dark tube. Single knob tuner selects picture and high-quality FM sound within Is.

f. Modern Styled 16-in. Television Console Set Large, full-sized pictures, life-like and brilliant on the 16-in. dark face tube. Single knob tuning brings in station, 3 r' 1 I 1 "i 8 7 'i picture ana souna.

Large speaner proviues ''-nm range of the Bendix built-in antenna. Larger speaker provides natural-tone sound. Plug-in for phonograph. Modern styling in selected mahogany ve 1 1999! tax quality, natural-tone FM sound. Plug-in for phonograph.

Handsomely styled cabinet with doors that close to protect screen and dials when set is not in use. 7 I ast- i IT i Mm Jr ptui V. I taxi ii. ti. I neers.

Model 3051 Model 6001.