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Show Telegrams New K. D. Y. L. Station on Top of Newhouse Hotel Starts Broadcasting Tonight ' 5 ! - " i a,.,.., .. . T ........ Jl - -vr -V - 4 ., 1 - it ' " ; V Interior of Th Telegram's new K. D. V. L. broadoasting station, showing Ira Kr, operator and designer of on f th latest and moet up to dete wireieae transmitter. Tonight at T o'clock the Telegram" new K. D. T. L broadcasting atatlon wltl atari aendlng Ita radio telepohne roncerta. No eapenae haa been apard In equipment, and one of the moat modern mod-ern and lateat atatlona of Ita kind la found on top the Newhouee hotel. Ira Karr. engineer aad operator In charge ha worked for month getting everything ra1. and baa dealgned a aneclal transmitter. With the new apparatu It will be peaalble to broadcaat much farther than formerly and meseag-e can now be heard from a great radlua. The Wlndaor opera company will give the flrat opera tonight. Thla company com-pany le compoaed of a group of forty talented muelrtana who. under the direction di-rection of Claude C. Cornwall will render ren-der aettlona from 'The Mikado." Each evening thla week, from T to I. apecial .irtiata will appear who compoae the Marconi opera company. On Mondar. Sept. 4. thte company, under the dl-lertlon dl-lertlon of Cedric FUlott Hart, will render ren-der "T Boheme." .Another Innovation Innova-tion will be the broadcasting of piano mtiale by mea of th Duo-Art reproducing repro-ducing piano, as wall a th lateat phonograph reeorde. Following la Mr. Kaar technical deecrlptloa of th saw K. D. T. L. tatlon 1 flow immediately under the eentei-pniee eentei-pniee In the ateel frame of th building. THE TRANSMITTER. The transmitter la of the lateat type knuwn to the sclrnce. It employe vacuum tube evaltm of generating high frequency alternating current lit tae muiallng aateni. It la dealgned to ae-Uver ae-Uver fmy or une hundred well of undamped un-damped modulated 'energy to the radiating ra-diating aalein at normal rating. Thl can, vi vourit, be much increaaed. The circuit uaed la the bianley. or, aa it la batter known In thla country, the reveraed feed back. Thla circuit i probably the heat known today for uae on comparatively ahort wave lengtha It le the uroducl of a Brluen engineer, tttanley, who perfected It during the World war. The inductancea are mounted on the front of the mala panel thus aaaurlug rapid and convenient con-venient change of wave length, au metere are mounted oa thla panel and evry vital circuit la metered. '1 ne ileiaing aetm of contlnuoua current modulation la employed. Thle haa proven to be the mual efficient and effective of all tried. llelelng I an American radio engineer. A cam witch la uaed to d-termln whether undamped contlnuoua wave. Interrupted Interrupt-ed contlnuoua wave or vole be trana-mltted trana-mltted In tbi way cod may be uaed when deelred. During th flrat tent thla tranamltter pal five thermo couple cou-ple amperee Into the radiating aya-tam aya-tam at a alight overload. Normal antenna an-tenna current will be In the neighborhood neighbor-hood of three and one-half amperee. A wave length of 140 metere will be uae.l for muelc, newa and like matter, 4sa meter will be uaed for weather re-porta. re-porta. POWER SUPPLY. Power for the Installation which In-volvee In-volvee the fllamenta of the power tubwe, motor.generatur. charging of batteriea and lighting of the atatlon le furniahed by a apecial three-wire ayatem directly to the generator room. The motor-generator motor-generator la a two-unit machine with a one horse-power motor directly coupled cou-pled to a 400-watt IkOO-rolt compound wound generator, double oommutator type. Tnle machine auppllee the high voltage uaed on the platee of the power pow-er tubee. The fllamenta of thee tubee are lighted by a epeclal atep down tranalormer mounted in the tranamltter. Power for lighting tne fllamenta of the reoelvlng aet la furniahed fur-niahed by atorage batterlee which are kept charged by a mechanical rectifier recti-fier from the alternating current 'line. Generator, rectifier and batterlee are THI aADIATTNO SYSTEM. Th antenna proper eonetat of ten conductor f t-SI copper wlr Arranged ae a cage. The hoope are of copper band and are elrhteeen Inchee la diameter. One of these hoope la placed every fifteen feet. The antenna le In-aulated In-aulated at either end by four ten-Inch electroee Ineulatora In eerlee. The lead In cage le taken off at the exact center and alao conalat of a ten wire cage. Thle le brought down directly to the electroee bushing which leada to the tranamltter In the tatlon. The antenna le eupported forty-five feet above the roof of the Newhouse hotel by two eteel maete making the total height abov ground allghtly over uv feet. The eounterpolee oyetera I supported support-ed twelve feet abov the roof by the eame two maata It la an exact dup. Ilcate of the antenna wlth-S cage lead In alao an exact duplicate of the one from the antenna proper. It le Ineulat-ed Ineulat-ed from It'a aupport la the am fash-Ion. fash-Ion. A ground connection to the steel frame of the building Is alao uaed to UMjMmorievrhjjMent kept In a eeparate room away from the operating room and the etudlo thus eliminating all dleagreeabie nuts. THI OFBRATIKO ROOM. . Th operating room adjoins the studio and opens to the roof. The room ha ooncrete walls and la made non-reverberatory non-reverberatory by hanging heavy cloth on all eldae at a dlatance of eight Inchee from the actual wall. Thla ha a pleaelng appearance and prevent any dlatortlon of aignala due to local echoe. All coatrole. the tranamltter and the receiver are lnetatled la thle room. All controle are mounted on ewltchboard behind the operating ta&le and coavenlent to the operator. THS STIDIO. Tbe itndio adjoin th operating room and aleo haa concrete walla hung with heavy cloth. Abaolutely no echo ie noticeable In thle room even with the aid of eenaltlve mlcroiihonee whlclt would detect an echo which the human hu-man ear could not hear unaided. Thta ie ah Important feature alnce If an echo enlete. voice wavee from the epeaker or alnger will reach the en-elttve en-elttve mlcrophonee at different in-tante. in-tante. la other word they are "out of phaee with one another. Ttiia cauaee bad dlatortlon of the elgnal at the receiver. Separate mlcrophonee are ueed for the collection of different ktnde of muelc Theae are all controlled con-trolled from the operating room. Arrangement Ar-rangement haa been made for the accommodation ac-commodation of complete orcheatraa or banda Piano accompaniment to vocal aelectlone will alao be clearly audible. The etattoa le at the top of the New-houee New-houee hotel and le reached by elevator from th lobby. |
