Evening Star Newspaper, March 18, 1923, Page 26

Reassignment of wave lengths for the several types of radio broadcast- ing stations probably will be the vesult of the conference at the Da- partment of Commerce, ‘Tuesday. |\ between Secretary Iloover, expert |V radio engineers and heads of the yadlo manufacturing firms. ‘These wmen will meet at the call 6f Secre- tary Hoover endeavor 1o amelorate the present congestion and confusion in the air which has isen through the astonishing de- velopment of the wireless telephone. The probl one of most in- tensely technical character, but it is \ot one without hope of fairly com- | plete solution. Fortunately, the | of sending of radio telephone messuges fci can be arranged wave lengths [ R sufficlently far not to interfere with ana re- ceivers can. at tune iheir receiving the different wave im provement in the and the | delicacy of the nee between la ay eventually corease, i wmher of ayers of Further increase the tions and thus the terial, if the power applied to certain | wave lengths is limited s0 as to cir- |y, cumseribe area of distribution |y from a given Beyond this \gain, certain day may Set aside w tain wave lengths for certain \tion At however, the sublic asting static which lumber 581, huve but (wo wave bands 360 and 100 uicte which Lo transmit ther Cons quently coustderal 1ty hus been found Verence whick thr . the srowth of ti Secretary hat with the ziven through ¢ through diffcre hrough the staggerin : lifferent wave lengths in different | arts of the country. it will be 3 Jle to accommodate the most K ser de and eliminate much pres \fusion w w i il £ | he in an p! i Tie tu a1 de a is an W in apart so a ench other. their optiol struments ands. With th | ni ot the rt in tic I A riety of ma- Al At [ di S ling int n & Do \; of the beiief | ¥ itions that can be ave lengths, of dayv. and | # of stations on | D var Ferent W pos pro- of w R I W and Hints on Selectivity. arly broadeast- Gueration in the every locality it from several ations i States " ing United is Do atut In order some of K tivity, o s t ch perm t ons aiffe stat Ar s eneratin Tenetha band of the on wa tw the wave sh to hear overating frem = it wtatic ned to the transmit or gth a ore, loud waves gths The rela ts roceived aual d the 1¢ transy the depends lengths, ng instru- itenia d apacity of a circuit, the | the current is received on the ngth to which it is tuned. The regenera stil furth vemses this ratic he pri ted govern the design of virtually recaiving ects. If there is no station the immediate erly designated single ve receiver used with aerial will select the d and tune out all otl wo stations that are 80 the wave length that ote or howl is heard, can- not be separated by any known methods | tuning that wi'l permit of the satis- tors reception of music and speech & is made #0 haip that on i be seiccted ali notes a pitch equal to or gher than the note heard, due to the arfering waves, will ba tuned out. Therefore it Cvident that the only emedy for this conditic an assign- nent of wave s that will prevent wo or more sta from transmitting at the same time : lengths that will duce It there are two powe ing stations in the vic and nefther { can be recefved withe terference from the advisable to use a small ar n_indoor antenn Ly a picture ¢ satis- factory and does not require lightning protection, as it is indoors. [f this very | smail anienna ot sufficient an tenna may be used consisting of single wire strung in the attic. 1t emall antenna and a cireuit regenera- tive receiver is the rensitivity of the system is in gencral only slightly less than when using a large antenna and the strength of the interference i veduced in proportion .o the respective, effective heights of the antenna. When using . small antenna the adjustment for tuning and regeneration must be | made nore in order to bring in_weak stat There is no doubt that high-powered broadcasting can render better service to can the station at a great because of fading and atn disturbance. 1f the recepti weak stations is not attempte the more powerful or nearby stations | are operating the small antenna &nd regenerative receiver will be found to meet all requirements, A convenicnt method of reducing interference from one station is to | connect a circuit tuned to the inter. fering station. between the antenna and ground terminals of vour re- celver. This circuit will pass the current due to the interfering station to the ground. and if the circuit has considerable inductance and a small capacity the desired signals are not noticeably weakened. The operator of the tuner is not complicated to the extent that it is when two cir- cults must be. adjusted to tune to a station. When the tuned by-pass oircuit has been adjusted to elim- inate the interference, it requires no further attention These coupled and by-pass circuits will assist in receiving distant sta- tlons when the local stations are operating: but the simplest arrange- ment and'a very satisfactory one for recelving one of the several local hroadeasting stations or one of thel nora powerful distant stations is the | =mall indoor antenna which has been mentioned. sportioning I Inity ircuit’ rege! an _efficient Sired station atation nearly a sustained m on of the n the music_of is an- the nearest | station | ou than distance, sspheric | n of very while | “Rody Capacity Many radio fans have (rat while listening in to program discordant sques and howlings are heard when the opera- tor touches a dial or a binding post. At times it will be noticed that the noise gradually diminishes as the hand is drawn away. In the true ‘yadio bug’ curfosity is instantly aroused and he will not rest until the cause is discovered Sooner or later he will encounter the technical term, “body apacit in simple English this means that aj charge of electricity from the Body | has eontered into the delicately ad- 1sted circuit of the radio apparatus. inereby putting the receiver out of | tune. Such an experience gives tangible svidence that the human body is in ffeot an aerial, sharing with the wires of the radlo apparatus a ca- pacity to store electricity. To carry out the analogy. the body, like the aerial, has induciion and capacity. It tranemits electricity as well as stor- it and also offers a certain re. tance to the passage of an elec- trio current. It is these qualities of resistance and induction which ‘hake possible for the body to cause n interference with the tube oscil-; tion by a flow of electrons | discovered concert Improves His Setn. Theodore M. Stevens of 634 <xchusetts avenue northeast to the radio editor as follows “After reading about the good re- <ults some of the so-called radio bugs have been getting with their sets, T thought 1 would tell about the re- sults I have got with the two of mine. “First 1 will tell about my crystal L Mas- writes | La W th 'Becker C. 't About four or flve years ago hen 1 was a small kid, 1 became in- | rested in radio. My whole interest as in the interception of the radio | me signals. Starting with the lowly ming coil _and a Dair $0-ohm i1 phones I got rather poor results. er I bought a pair of 2.000-ohm hones and made a loose coupler, to- ther with u new aerial and could r Arlington and one or two other wrk station 20 feet away from th wones with this set. With the tion of a vernier condenser 1 eve | cuti gt beiter results his set is difficult, markal especially ning i most BY COMMAVDER STANFORD HOOPENR, €. 8. N\, Radio is becoming increasingly use- ful to the farmer and the stock raiser well as being indispensable to the It is rapidly estending its over the lund for beneficial addition to its long estab- ted realm over the thie . ser My plione number is Lincoln 1d if any of my fellow radio bugs ish to have me answer any questions ther concerning my sets or reception distant stations on s vsial or singie reult set, 1 will gladly « Please in the evening 1 also invite the man who doubts o crystal record to come over any ght and listen to the tune of KDKA 1 a little chunk of ¥ mariner. o ser after 5 o'clock alm ce in lished and sea undispy { The tiller of the soil and the ranch- {man ng acquainted |with agency which the twenty-five years | 1y ved the seagoing jand they find that it can render prac- {tical to the in remote | {areus quite as readily as to the sailor Hears Fifty-five Stations. the 110 distant H. W. Wells of street v Ch the loug They that st bec, sta- mysterious 105 of by Firty-five s heard =t Thornapp rave beer tance reception How 1 past B entered i ser man, aid landsman CRAC M Angeles x jon KYW. Chicago:| 1t BT. Ralcigh OOz RoRE: [ s Mass.: WON. Worcester, Mass,; | forecasts dal Detroit; WEY, Wichita, K fof the dot-a . Medrord Hill Mass.: WOM. | telegraphy lanta; WGR. Bu WHO. Kan- 00 s City: WKN, Memphis . Mem- | 1arh = Wor rer A, rta, Canada a KHJ, Los 0it; KSD, St Louis high seas. result the weather broadcasted by means 1d-dash code of radio- and storm warnings simi- perfodically that information keeping his shelter at alo . broadeasted receives Richmond Birminghan it ans; WAAK approd t WSB, A WSY. L WAAC 10 fiwaukee: WHAL. ifort Worth. T DAZ Richmond. Va: Wo I e fi: WDAA. Nashville, parts will A Springneld 1 WwWDA prepare in p la.; WDAF., Kansas City: droughts and DAL, Jacksonville, Fla; WDAS lin temperature as a result of weather orcester. Mas WEAD. Fort forccaste applying to individual areas age. lowa: WEAN, Procidence It fregulurly broideasted by rudioplione. WEAP, Mobile, Ala.: WFAA, Da ex WFAY, Independence.t Ald to Mariners. ans.: WHAQ, Savannah, Ga.; WHAP, [ The mariner has long depended on oy WIAO, Milwaukes, {118 radio operator when at sea for =: WIAR. Paducah. K 7 keeping in touch., through ihe me- Raplas, Towa: WKAQ Jdium of the dots and dashes of radio- s e aties e MATS [ teisgraphy. with the owners of his Minr WMAQ. Chic ship for the purpose of recelving In Manhattan, Kans Ustructic as to change of routes, WOAL San Antonio; porix of call, the nature and velume fove: Mo:: WLAK: of cargors fo be discharged and taken CLAT, on and & r matters. Havana i Similurly the farmer and the ranch- HI. have b n sceking rms when anad i} be for storms, floods, dden marked changes In ver enabled e 0 adv ico nluth NAK Pa e Bellows Cuba 5 detec How heard, on th M. Wells ave a two-step amplifier use wh essary. 1 have single circuit regenerative set and 130- acrial, 3 _atons Archibald stre 1y This represents transcontinental dio amateurs. 2unication among ate dates from world war, when govern- ictions were lifted. Ama- llowed to transmit on 200 & the closed navigatio season. or on wave lengths beiween 0 and 200 meters the open part of the essage across With the advent of the CW Montreal and itinuous wave) method of trank- u mission they started to do a little t is not League, | beca teurs hich 1 a »sts by Canadian r n Saiiial hope th htains ymmend nepire {close of the rest h som will other | dur Long Relay Recorded. The e o went 1 neouve ranla under the endeavor to break the inscontinentai record of 1. when a message was the United States and and one-half minutes red by the itreal is Approxi- The arrange in charge of member ~of the hoard of direction and nted general manager io activities in Canada liminary test just com- the Canadian amatenrs was relayed from Vancouv nd " return a until wi non practice across the border specia the province of Ontario, ibut there was «till little communica- n batween prov The past er en haps, real com- rent of amateur activities. The {number of stations grew 500 per cent 'in one year. At the beginning of this woon there were four or five long- stations in the large cities amateurs soon discovered could transmit over long and communicate with stas - United States ommon thing for a mateur to work an_Ontarfo an Ontario man to work Winnipeg or gina. The amateur is fast catching up Ameri in_amateur Givities nadian heard during cont A R. R ansatlantic i The Canadian amateur has his | velf-imposed periods of quiet for the I benefit of broadcast Jisteners. He is allowed as much freedom by his gov- ernment his friend “across the Jline” He can cover ax great a dis- tance und handle as much trafe last ter that it for am Th aistanc and the they ance D L. e nean. stations in Canadia ssage 13 as from the | the 1 perated by E. Char reet, B, Vancouv Fowler and ro- ugh sta w Pender eur e rela b and was ed am M Paint and Varnish Products Prevent Destruction Millions ride in on every breeze They lay a pall of ugliness over the beauty of the rooms. Their defiling fingers strangle the charm and besmirch the cleanliness of the home. Prevent the Apply Devoe Velour Finish. This flat oil paint, because it is insures the constant beauty and cleanliness of the walls. washable, Devoe & Raynolds Co., Inc. New York Heve walls that can be loundered! Use: Devoe Velour Finish—a flat oil paint. Devoe Hollend Enamel — smooth as flass—hard es tite. Devoe Agent Paint and Glass Co. . J. Gilbert, Manager 1239 Wisconsin Avenue l | TO DISPOSE OF CROP |Mariner Also Depends on Tips Furnished Through Broadcasting Service—Amuse- ment Feature Is Becoming Popular. the | Founded 1754 Devoe " GEORGE E. 409 10th St. N.W. \ man will become more and more de- pendent on the radiophone broadcasts of the future for authentic inform tion concerning the potentisl or &c- tual supply of and demana for their products. available markets, prices Obtainable at the various markets, trunsportation conditions wnd facili- ties, ¢to., and they may receive this tnformation by the spoken word of ithe dfophone rather than by the |dot-and-dash code of radio-telegra. {PhY. which Jatter they ordinarily Wwould not understand. Radlo will thus transform the 1so- llated farmhouse and ranchhouse of the future into the equivalent of |mintature grain. live stock, fruit, out- [ton nd similar produce exchanges. and- obviously with results of the lutmost importance to the producer {and consunier of foodstuffs und other agricultural commodities in this country. [t doubtless will serve to protect the ranchman and the farmer gainst preventable financial loss as radio has long served the shipowner in a similar manner. With a daily nation-wide market in telligence service which become available to the ranchmar simul- aneously with the packer, to the I!..rnn-r simultaneous! with the dis tributing agencies. and to the fruit! land cotton growers simultaneousiy iwith the associations und exchanges | ithrough which such commodities 8t linarketed. for exnmple. there shoul result & mora efMolent conduct of the businesses of producing and market- ing of the essential commodities re- quired for everyday eonsumption, with a consequent elimination of &vold-~ | able waste and resulting reduced prices. The market brogdcast service, which Was heen established in the interests of the producers, distributors and consumers of essential commodities, 1 provided by the Department of AgTi- culture through its weather bureau land bureau of markets. The infor- | matlon is broadcast daily at fre- quent Intervals through the naval radio stations at Arlington. Va.; New |Orleans, La. and Great Lakes. near |Chicago. TIi. It is picked up and re- adcast through agricultural eol- lege broadcasting stations and other desig ted stations situated at widely separated points. so that the are jover the entire United States is effec- {tually covered. Market Quotations. i The estimated receipts, sales. prices. | {etc.. of cattle, calves, hogs and sheep | fat such widely separated public stock {vards as Chicago. Fort Worth, Kan- isas City and Denver is daily broad- { cast through tations suitably situ- ated to serve the ranchmen in these ral areas. Quotations on cotton, hay, feed, etc. and imforma- relating to the supplies thereof se broadcast over the regions affected Fruit. vegetable, dairy and poultry products and similar foodstuft prices Iprevailing at such widely separatad markets as Cincinnati, New York |Chicago, Baltimore, St. Louls and Pittsburgh, and information relative to the immediate and prospective sup- {ply and demand for such commodities, {is” likewise broadcast through sta- tlons suitably located to effectuallr | |serve the producers of such commodi ties. With daily information of this na- mented by daily weather asts and perfodical storm warn- 'ings the producer of our agricultural products will be given invaluable as- sistance as regards the general con- duct of the business of farming |thioughout the United States, a busi- ness on whose successtul conduct the prosperity of this ocountry and all other countries primarily depend: Thus radio is extending its {nflv ence over the land for essential serv- | ice as well as over the sea. It is the agency through which the landsman in remote regions will maintain co tact with other remote reglons id evil that dust can do. Philadelphia Chicago |ugency | This THE SUNDAY STAR, WASHINGTON, D. €, MARCH 18, 1923—PART 1. RADIO AIDS FARMER BY RADIO TODAY | Schedule of Wireless News and Entertainment. LOCAL STATIONS. Radio Station, Radlo, V (710 Meters). 10:05 a.m. and 10:05 p.m.—Weather bureau report. NAA—Na WDM—Church of the Covenant | Metern). Morning service; sermon by rles Wood. pastor. *reliminary musical pro- 0 11 am Rev. Dr. 2:15 p.m.— gram 3:30 p.m.—Fvening service; sermon by Dr. Wood on “Biblical Paycholog: —The Reaction of Thought on D tiny"; music by choir of 100 voices WJIH—White & Bover Com Meters). 8 pm.—Services at the Vermont Avenue Christian Church: sermon by Rev. Dr. A, W. Gottechall, general secretary of the Christian Misionary Hoclety “of Maryiand, Delaware and the District of Columbia; apecial music by cholr and mixed and male quurtets led by W. I3. Braithwaite ny (360 WIAY—Woodward & Lothrep (260 Meters.) | p.m.—Mbsical ves) the Congregational pro- p First Church with the principal markets and large centers of population as the mariner| aintains contact with distant ships| at sea and with the land. | Land Nervice Popular, | the landsman it constitutes an | for affording amusement and entertainment well as an in various industrial pursuits, and it is veilable und applicable to his t only in the remote regions To aia it need but in | as the large cities as well To the mariner, however no wise regarded as an affording wmusement, although he obviously ix in greater need of means, of amusement than the landsman. but strictly ss a medium by the utiliza tion of which he may follow his cail- ing with efficlency and with a greater measure of safety to his ship, his crew and himself, and especlally to thoss for whom circumstances have decreed travel by sea and who are thus entrusted to him for their com- fort and safety. The ever-growing measurs of popu larfty of radio and its constantly widening circle of activities would seem to indicate that eventually the land service will begin to encre on the iddispensable sea development is not it i3 in| ngency for atisfactory Delivery of ¢ Fpening Star Every individual member gram by the Beatey Concert Company of New York, composed of Lillian Beatey, soprano; Mary Bennett. con- traito, and Mary Lackland, violinist DISTANT STATIONS. Programs Scheduled for antern Standard Time. AF — American Telephone Telegraph Compnny, New (400 Metern). 3 p.m.—Lecture Dwight Hillis. 3:40 to 5:30 p.m.—Men's conference in_the Bedford Branch, Y. M. C. A 0 to 8:03 p.m—>Musical program direct from the Capitol Theater. £:06 to 9:25 p.m.—Program by Capi tol Theater featured ar(ists. 9:30 to 10:30 p.m.—Organ recital and York by Dr. Newell WIP—Gimbel Brother) (400 Meters). 11 am.—Morning services Holy Trinity Memorial Chapel 2 'to 3:30° p.m.—Popular orchestra recital at WSB—Atlanta Journal 11:45 am.—Services from Presbyterian Church, 6 to 7 p.m.—Sacred concert; program the First ORCHESTRA CONCERT. Tomorrow at 3 p.am., concert ! by the United States Marine zand Orchestra, Willlam i Santelmann, leader; Taylor Braneon. ond leareh Overture ique Dame’ “Mazurk Opus Grand Fisher Vals Espana Waldteufel oin du Bal" Glllet Diplomat.” Sousa No. 8, Opus 46. Dyvorak ymn. “The Halls of de concert (a) Intermezzo (b) M “The arcl, “Slavonic Dance. Marines' ¥ Montezun “The Star Spangled Banner.” come about, however, hecause by the effective allocstion of wave lengths to the different services and the pro- duction of more selective transmit- ters and receivers all of the services In the field of radio should be imodated and withou with one William H. Lyking Another “Young Veteran” Star Carrier For five years Master Lyking has served Star subscribers in the section between 15th and 17th and H and K streets N.W. He will be fourteen years old in June, and has a splen- did record for reliability. Star Carriers are taught—not onl to be regular in their delivery—but to serve the papers properly. For Carrier Service Fill Out This Coupon, or Phone Main 5000 THE STAR: Please Evening and Sunday—delivered to the , following address—the charges to be 60c a month. Agent CORBETT o. have The Star— Philadelphia the | | classical | (400 Meters). | WDAF — Kanxas ames H. Witten, soprano; Charles heldon, fr., accompanist. 30 to 10 p.m.—Services Baptist Tabernacle. from the WWJ—Detroit News (400 Meters). 11 am.—Services from St. Paul's Cathedral 5:40 p.m-—Nows orchestra; Mrs. Ed- win G. Settle, soprano. Electric _Company, y, N. Y. (370 Meters.) 11 a.m.—Services of the State Street Presbyterian Church. 4 ~Vesper service. p.m.—Bervices of the et Presbyterian Church: State AS—Louisville Courier « Journal (360 Metern). 10:37° a.m.—Organ music 11 a.m.—Church_service, under the auspices’ of the Highland Methodist Church 5 to double Ind 6 pm.—Concert by special quartet from New Albany, City Star (400 Meters). ) to 6 p.m.—Concert program. KDKA — Westinghouse, (300 Meters). 10:45 am—Services of ths FEast End_Christian Church. 30 p.m—Bible story for children, ‘Sleepy Watchmen.” 15 p.m “oncert by choir Stephen’s Church of Sewickley, Pa. 4 prn—Organ recital. 1:45 pm esper services of Shadyside Presbyterian Church 0 p.m—Services of the Calvary Church Pittsburgh the WJZ—Westinghouse, Newark, N. J. (360 Metors). 10:30 a.m—Musical program 11 a.m.—Berviges of the West Presbyteriap Chufoh 3 pm e Taik by Rev. Dr. Sranam C. Hunter on “Unforgettable Monu ment in Palestine. 3:40 p.m.—Nellie R. Gay, contralto 4 p.m.—"The Theater—Iis Life and Its People’ by Rita Weiman, author |and playwright. 4:40 p.m.—"“Austria Generally,” by Kilroy Harrls. 6:30 pn-—Readings and records trom “The Bubble Books That Sing 7 pm.—Fifteen-minute analysis and interpretation of coming events 7:15 p.m.—Organ recital from the Estey auditorium. 8 p.m.—Address by Assistant Sec retary of Navy Roosevelt on “Amer- fcanism” and by Albert S. Callan New York state commissioner of the American Legion, on “The Legion and 1ts Bervice Work 8:30 pm.—Vivian Todin, who i playing in “Give and Take” at ths 49th Btreet Theater. 8:45 p.m.—The Waldorf-Astoria Symphony Orchestra 10:01—Kay Dove cert soprano End Henderson, eon- KYW-—Westinghouse, Chicage (400 Meters). 12 noon—Central Ch from Orchestra Hall 4:30 p.m.—Studio chapel eervices 8 p.m.—Chicago Sunday Evening Club services broadcast from Orches tra Hall; special musical program by choir of 100 voices. WOC — Palmer _School, Davenport. Towa (400 Mefers). p.m.—~Church servic h services For Constipated Bowels, Sick Headache, Colds, Sour Stomach, Biliousness bowels without g, take Cas- To ciean ramping carets! You want to feel fine free from s out your or overact to be quickly headache, dizzinees, ousness. colds, bad breath, a sour. oid. E h. One or two Cascarets, any time, will of the Circulation Department realizes the personal responsi- bility that rests perform his part of the im- mense task of distributing the thousands of Evening Stars to the homes of scribers. You can be perfectly sure of getting your paper EVERY DAY—for The Star boys never shirk. | start the bowels acting. When taken | at_night, the bowels work wonder- { tully in the morning. | Cascarets never sicken or inco venience you next day llke pills, ca { omel. salts or oil. Children love cent boxes, also 25 2 Any drug store ascarets, too. 10- 5 and 50 cent sizes upon him to regular sub- Each coterie of boys is mar- shaled by a superintendent— who in turn is responsible to the Manager of Circulation. Reported mistakes—the few that occur—are carefully in- vestigated and steps taken to prevent a recurrence. If there is any deficiency in this service—you are urged to report it. If there is any sug- gestion for betterment it will be gladly received. 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