Evening Star Newspaper, March 21, 1926, Page 46

AURORA'S EFFECT ON RADIO SLIGHT “Duliness” of Ether Chief Re- sult of Magnetic North- ern Lights. BY CARL H. BUTMAN. Radio_experts are not all in accord 2s to whether the recent unusual in- terference encountered by many broad- cast listeners was due to the auro borealis. Some believe that, indivectly &L least, the northern lights were re- sponsible: others point out that their ohservations showed no relation be- tween the aurora and the so-called “blanketing.” Enzineers of the RadiosCorporation of America now point out that the ef- fect of the aurora did not interfere seriously in the handling of commer- cial traffic, but, on the cont seem- ed to improve reception conditions by reducing the objectionable ) b ground and creating what they term a silent” atmosphere. Scientific opinion as to the exact cause of the aurora borealis is divided. The display is by no means rare in the northern countries, partieutarly in Scandinavia, and has on occasion been observed as far south as Penn- sylvania. However, its electrical ef- fects are felt over a large part of the wor Last One January 26. t vivid display of the aurora took place on January 6. in the morning operators of the lio Corporation’s receiving station Me., reported an apparent { the atmosphere, in t to the normal animated There was absolute for the shgnals which came through with good volume, al- though seemingly dull. Suspecting the canse to be an exceptional display of the aurora borealis. the radio men vivid e b kground. calm’ except nt queried the Norwav transoceanic staff, who reported a brilliant spectacle in the northern sky. Meanwhile observations were made at the regular transcceanic receiving station at Riverhead. Long Island. Here the effect was far less notice- able than farther north at Belfast, probably due to the difference In lati- tude. If anything. there was an ap- preciable improvement in incoming E Riverhead. ound Wires Affected. The most marked effect of the au- rora burealis was noted in the opera- tion of the R. C. A. w which there are some 4,5 of New York City, passing through the ates of New York, New Jersey. Connecticut, Rhode Island, Massac getts, Delaware, Maryland and District of Columbia. The land lines are used to connect the varfous trans- oceanic and niarine transmitting and receiving stations with the trafiic offices, well as to hook up the broadcasting stations of the R. C. A. group. Considerable ground currents were noted on the wire lines, but the #stem at no time was in danger of interruption. The short-wave wmadio link bhetween the Belfast statlon and the New York traffic office performed flawlessly all through the display. For two davs the aurora borealis held sway. At first transoceanic radio signaling speed w reduced, but as the operators hecame more familiar with the altered state of the atmos phere the radio circuits were brought up by ea stages to a speed of 80 to 90 words per minute, and conditions seemed to improve as the offect con- tinued, BOMBAY RADIO MAKES HIT 100-Watt Broadcaster Transmits Program 1,000 Miles. The” 100-watt broadcaster of Bombay Radio Club is reported have sent its radio entertainment a distance of 1,000 miles. This has stim- ulated considerable interest in radio. Commercial activity also is being felt since the Indian Radio Telegraph Company has begun building code stations for use in the Imperial Wireless Chain. This organization is &lso planning to broadcast and will in- vest a half million dolars in stations at Calcutta and Bombay. One report indicates that the power of the Cal- cutta station will be 12 kilowatts, while another limits both stations to 2000 watts. RADIO IS IMPORTANT T0 ARCTIC EXPEDITIONS lio equipment has come one of the most fmportant items con- midered by Arctic expeditions these days, when communication with bases is required on polar dashes by the ®ir route Comdr. Byrd of the Navy is equip- ping his ship and plane with the latest medium and short wave appa. ratus, for direct communication, re. laving news to amateurs and experi mental tests. His ship. the S. S. Chantier, will answer to the call KEGK on either spark or a special short-wave tube set. The airplane will be furnished with the latest 50- watt tube set, operating on 61 and 44 meters, for an estimated range of at least 1,000 miles. A portable short-wave set will also be carried in the plane for use in the event of emergency landings. The radio personnel of the expe- dition includes Chief Operator Lloyd X. Gronlis of Chicago and Operator George H. James of Manchester, N. H. The radio equipment has been selected by Malcolm F. Hanson, who designed some of the apparatus Capt. Wilkins of the Detroit Arctic expedition also is carying consider able radio equipment. including a ghort-wave airplane transmitter de- signed by Mr. Hanson. His plane will use the call KDA in transmitting news to members of the North American Newspaper Alliance on 60 2nd 44 meters. The Amundsen-Ellsworth Polar ex- pedition. which plans to fly toward the Pole from Spitzbergen, also is radio-cquipped The United States Weather Bureau, 1t is understod. will co-operate transmitting weather bulletins to the polar fiyers the to to be WIFE WINS DIVORCE. Husband Cruel and Continually Drunk, Says Mrs. Fraas. After hearing testimonv of Mrs. Anna D, Clifton Terrace Apart- ments, 4 s to the ef- fect that Martin J. Fraas, plumbing contractor, treated his wife with cruelty and was continually under the influence of liquor, Chief Justice Mc- Coy, in Equity Court on Friday an- nounced he would grant a limited divorce to the wife, with permanent alimony. The court fixed the amount of the alimony Fraas is to pay at 360 a onth, subject to application by the fe to have the amount increased should the defendant's income ins crease. She was also awarded cus- tody of a minor daughter, whose sup- port the defendant is to provide. The wife declared she was obliged to leave their former home, at 119 R street northwest, because of threats on the part of her husband to cause her harm. Attorney Raymond Neudecker rep- aphapied e Fdes 0 miles out | by | LONG RANGE RADIO ENTERTAINME SUNDAY, MARCH 21, 1926 'Programs of Distant Stations Scheduled for Eastern Standard Time 8 TO ® AM. 8:45—Moomeheart, 11 Catholic Church services 24 9 TO 10 AM #:00—New York: Children's comic stories and musi 10 TO 11 AM, 10:00—Lansing, Mich. : tional CHuri h; wervices Rosaville, ¥, Watchtower Tec 5 5 York: M. E. Church service r e Haptist Tabernacle program ) emple Beth El services Chicago: People’s Church services Cincinnati : Moosehewst, 111 10:45—Phtladelphi Atlantie City 10:53—Boston: Temple Israel services ... Holy 11 AM. TO s Organ prelude: choir: soloists; sermon atarian ChUreh services .............. d Preshytorian Chirch services . Communion breakfast of the New York Pol 11.00—Lansing. Mich. Philadeiphia: U ¥ew York: West E New York euther and river reporty 10:40—Kansan City: Christian Churel servicos "0 Protestant CHUrCh #arvices ...o....... 10 :45—Springfield " Church of the Unity services Trinity Church servic Chelsea Baptist Church servi Chimes from Belfry Plymout Tnairumental vocal soloists; 1. B. 8 . A. Choral PRt EEEEEEPIR T NOON. Department Holy Name Soviely: speakers ....... Schenectady ttsbure} New York Montreal 40—Chicago 45—Chicago: 1 All Souls” Unttarian’ Ch urch services . . Second Chureh of Church of St enth Church of Christ, 11 11 e Walt u urch services James the Apostle services . etentist . reads the filnnies o i54—Atlanta: First Presbyterian Church services ... 12 NOON TO 1 P 12:00—Berrien Springs, Mich.: Birch Hall Ladies' Quartet. Seventh Presbyterian Church services nhrose First : Organ recital: talk St Cathedral services Central Church services from Orchestra Preshyterian Church services . Hall ! program from Chicaxo The 170 2 P.M. hicago 1:30—Chicago’ V soloists Concert progra e, N Y icax —Philadeiphia: Betl ' ok Radie forim o pitol Theater program: S and organ recital. ... . . and instrumental program Moult Qi o ox: mu ephard time: Aerial Girla: iy Sunday school services. ocal and instrumental’ solow. 3 T0 4P 3.00—New York Musc Chicagn: Organ New YVork: Frolickens Seheneetady Chieagn: Skeeies- Young peopl Organ_recital Cryatal Palace Orchestra. Chapel sevicn Mooseheart, 1il.: Concert progrsm. icago: Quartet o ork ork . St ttsburgh© Organ recital vesper services .. Chicago: St. ltas Kansasx City s Ce New. York YoM £.00— chorn pkiyn chime: 1 axo nti James 4.30—Monseheart, Til, Philadeiphia: Services from Y. Chi titute Kour . At and Discopal Church: choir Radio Bible_e llll rehigioms: Choral cita st What to Think Retigion’ Muisical program, WFBL and. iddle hour of mume . conference. soloist . Federation of Chure .om North Side Turner Hall Reisner's hour of religion. 5 George's vesper services. . address: 3 WTAG, WCAE and WSAL from instrumentai organ W G Contral Branvh inmers Sghgege g bt Py 313 33 A waz A Gloria _Trumpete loria _Trumpe E Tecital * 5 T0 6 PM. 5:00—Mooseheart. 111 Deiver: 'KOA ansan City: Lutheran _ Church v York: Concert icagn: Musical College Organ_rerital: Recital: Com. Orchest e rogram o progr TG mint Conrert prozram talk: book review Newberry Memorial n Palmer House Symphony Orchestr: Sabbath ' vespers ~from organ " recit i organ: boye. o Fork - Hal and Frix. harmony hovs .. .. 5:45—Boston: Organ recital from City 6 TO T rge Barrere’s Orchestra, WIAR and Gn Koemior's Hamera Phiiadeibhia . Organ rental = . Alinta: Oakhurat Dresbyterian Aliage: Mumenl proeram “Worth, 6:00—New York New York Baptist Church’ coneert. Chicago:” Program of chamber mus defterson City Springfield: Golden Rule hour Toists 0—RBaltimore. Philadeiphia: Chicago: Boston Pittaburgh 6:45—Philadelphia Conoert orchestra, Organ recital esper concert. . & hulletina: Congregati Dinner conesrt_ ... Seaman’s Hotel Pen Chiurch Chriatian Church vesper voca i Club. P Choir. . vicen Thstramental” a0 from B@mnm'n‘ ¥ r??‘filui" Hotel WEIR IN LOW-WAVE TESTS 'Will Report Data on Series 'l Ex- periments Planned by Gen- eral Electrie Co. The radio fans of the Ulnited States are to be used as the laboratory for 4 new series of broadcasting experi- ments arranged by the General Elec- tric Co. for a study of tmansmission on ultra low wave lengths. Although only a small percentage of radio listeners will be able to par- ticipate in the tests, it is expect- ed that all receivers eapable of tuning in signals on lengths below 85 meters will co-operate in the expertment. The serfes of transmissions, which will be conducted from April 3 to April 20, will include the rebroad- casts of the WGY progvam on 32.79 meters and 65.5 meters from Wednes- day noon to Thursday noon and from Saturday noon to Sunday noon every week. When WGY is not broadcast- ing durfng those hours supplemental telegraphie signs will be transmitted. The telegraphic signals also will be continued over the 74 hours on the three wave lengths—15, 26.4 and 50.2 meters, In announcing the series of experi- ments, the engineers of the General Electric Company state that they hope to establish threugh communications reports from Hsteners the degree which the short wave may be em- ployed for hoth breadcast programs and telegraphic signal work in the future Asaisting In the experiments will be members of the Radio Relay League, adio amatuers in practically every foreign country and radio fans who are equipped with short wave recelvers. Several different types of antennae and transmitters will be employed for the transmissions and a careful check will be kept on the reports of the sev- eral forms of communication. Spectal engineers from Schenectady have also been detailed to observe the smignals in various parts of the country. The frequencies for the broadcasts 04 | on the lew wave lengths will he kept constant through the use of quartz crystals, it s announced. LocalRadio Entertainment Sunday, March 21, 1926. NAA—Naval Radio Station, Radie, Va. 4.5 Meters). 10:05 a.m. and 10:05 p.m.— Weather reports. 9:35 p.m.—Time signals. WCAP — Chesapeake and Potomae Telephone Co. (168.5 Meters). 11_am.—Dedication of Mount Ver- non Place Methodist Episcopal Church South, representative church of Southern Methodism. Bishop Warren A. Candler, D. D.. of Atlanta. Gi will preach. Music by the Mount Vernon Chorus and Quartet, under direction of R. Dean Shure. 4 p.m—Services from Bethiehem Chapel. Washington Cathedral. Right Rev. James F Freeman. D. D., Bishop of Washington. will preach the sermon 620 to T:20 7§ Musical program by the Vesper String Ensemble. 20 to %:15 p.m.—Musical program by Maj. Edward Bowes and the "Capi- ania’ Orchest T TO 8 PM. 7:00—Philadelphia traming Springfield New York: Gol conference 2 Copley Plaza’ Hotel Orcl w's_Hotel MeAlpi L Wom Band and, sermon. . . New York: Mme. Nadja Sisova Chicago: Moody Bible New York: Hotel Pennayivan: al: Church of S : organ: choir Cuba Lansing. Mich Dallas: Firat Preabs Chicago: Omah: 7:15—Detrot Bije study_period | ontral” ML ED Chureh” srvi Pittebursh: Calvary Episcopal Church v/ 3 1 program_from Capi . WWJ and AE, from Comgregational Church services. w_Yorl naic: WEAT, WIAR 7:30—Davenport : Raltimore : Philadelphi; Chicago: Studis :45—Philadeiphia Artist recital. Bethany rogram: songs. Benjamin Franklin Hotel cil concert pianist. WIAR! te hour. ... B 7 Orchestra © 11 ames the Apostle: muisi erian Church services. WLS Littie Brown Church in the Cathay Concert Orchest) Orchestra: onceri by Tahernacle Vaie.'. Presbyterian’ Church services. Walnut Hills Chriatian Churc City: Chelsea Baptist Church services . 8 TO D w York: Vail's String Ensemble: Mayolians . San Francisco: Organ rerital .. ngfield \icago: Soloiste: ‘musical program ew York: Bakelite hour ... hicago: Artist program .. icago: Club_service Schenectady ana: Cuban Army Band New York: Paulist Choristers 8:15—Berrien Springs: Organ recital 8:30—Des Moines: Life Trio: Bankers' Vocal and instrumental " soloist trom ‘Orchestra ‘Hail Unitarian_Church services ‘ehoir: polojsta: ‘sermon York: Charles Isaacson's De Wite Clinton conceri soloista First_ Preshyterian Church services Firat Christian Church services .. M. F Philadelphia Philadelphia: Chamber m R:45-—Atlanta: Presh Chu Cincinnati: Chimes concert .. Montreal: Studio program de .. 9:00—Cincinnati: Sermonet New York: Studio program. Havana: Cuban Army Band Springheld san F Church services ... Bonwit Teller Ensemble . ervicen WEY s L.l : talks: Lido-Venice Revie Vocal salox: organ recital s Lind's Orchestra: Palace Seaside Hotel Ensemble . pcal and instrumental artists City Chicago: Chapman's Orchestr NS .o Rossville, N.'Y.: Watchtower Chirago: Crawford « Orehestra: instrumental _artists Zion, 10.: Mixed quartet: mental_artiate: readi Portland: Melodies ... . 0.15—New York: Atwater Kent ‘Alexander Brailowsk: WGR, WCAE. WSA KSD. TAG and WOO, from Bes prings. Mich.: Jeannette Richardson. soprano . Thatl Pogue Co. program: soloists: hamd ... Angeles: Firat Umitarian Church services ‘Vocal and instrumental recital 9.30—Cincimnat o York New Yori Tnstrumental selections . New York: Parody Orchestra: Zero tring Quartet: WBBM Quartet: veiestial bells: our, Claudia_Musi sopr: manist, WEEL WCAP. vWJ. WOC. WCCO, WGN, WEAR. News: Hotel Ambassador Concert Orchesira. oeal and instramental selee- e vocal and WIAR. 10 TO 11 P. 10:00—New York: Zero's hour: news: Twin Oaks Orchestra: Went's Sirens ... .. WMCA New Yorl: Rossini’s oratorro, ‘Stabat Mater." with ‘chorus “Firt Bapiisd Ch City:_Organ recital Hot Springs Chicago: Mu New York: Godfrey Ludlow. rvices al _program Omaha : soloist . \w Arlington Hotel 6find “Violinist, WGY .. Philadelphia: Ameriean radie heur . v o Vocal and instrimental solos: male quartet: Dctet, from First Lutheran Church ... 81. Lonia: Pr Los Angeles: 30—Chicago: Request prosram 10 eneo: (\‘omlflnmrlmmmm Chicago: Concert program . Fort Worth: Texas Hotel D Havana: Lido Venmice Revie ram _from Missouri Theater . irst M. E. Church services . Portland: First Congregatiomai Church servicer | 11 to 12 MID) Martin Music Co. program : wongs . t Sprines San Franeiseo *mont Hotel Orchestra. Cincinnati : Davenport: Palmer Little Symphony 11.30—Chicago: Back-home hour ¢ 12 MIDNIGN' 2.00—Portland: Chevrolet Orchestra . 00— inee. Bankers' Crehestr Dallas: Ligon Smit Beverl 12:13—Cincinnati Marion Vocal and instrumenial numbers Orchestra: " soloiet T TO 1 AM. Rills Nurseries' Kay's Orchestra 15:30—Hot Springs: Organ recital from Princes 1:00—Chicago: Nutty Club HAVE NEW EQUIPMENT. Piezo Crystal Oscillators Supplied Chicago Broadcast Stations. Nine of the thirty-odd broadcasting stations in and around Chigago have been equipped With plezo erystal oscillators, calibrated to the stations’ frequencies and designed to hold them on their allocated wave lengths. The stations so equipped according to the Department of Commerce are KYW, WBBM, WFKB, WJJD, WIS, WOK, WQJ and WSBC. This new equipment, it is believed, will assist in decreasing local station interfer- ence in one of the most congested 0otk in radio land 299 FOREIGN STATIONS. List Compiled of Broadcasters in Active Operation. A mew list of foreign broadcast sta- tions compiled by L. D. Batson of the electrical equipment section, Depart- ment of Commerce, shows a total of 299 foreign stations in active service, 27 under construction and 64 as pro- jected. The list is available upon re- quest to the department. The February 27 Radio Service Bul- letin, published by the Government Printing Office, contains a list of Ca- nadian, Cuban and Mexican broadcast- ing stations arranged by wave lengtha. This may be procured from the superintendent of documents for 6 senle » tol family,” direct from the Capitol Theater, New York €ity. The first part of the program will be taken direct from the stage of the theater and consists of music by the Capitol Grand Orchestra and featured artists. The second part of the program will consist of a special presentation by Maj. Bowes of vocal and Instrumental artists, 9:15 to 10:15 p.m.—Atwater Kent Radio Hour, featuring Claudia Muszie, soprano, and Alexander Brallowsk: pianist. Program follows: Arfa. “Ritorna_ Vincitor,” from “Aida" (Verdi), Mme. Muzio: “Noeturne in D Flat jor.” “Etude in G Flat Major” (“Butterfiy”) and “Waltz in A Flat Major” (Chopin). Mr. Braflowsky “Pastorale” (Veracini) and “Girmetta (Stbella). Mme. Muzio: “Were I a Star” (Burleigh). “Cuckoo, Shall | *(Franz Abt weet Afton' * Mme. Muzlo: debestraum"’) ‘ampanella” (Lisxt), Mr. WRC—Radie Corporation of Ameriea (468.5 Meters). Silent. Early Program Tomorrow. 11:55 a.m.—Arlington time signals 12 noon—“Fifty Farm Flashe: prepared by the Department of Agri- culture, 12:30 p.m.—Midday Lenten service under the auspices of the Laymen's Service Association, broadcast frem Keith's Theater. 1 p.m.—Sldney Seidenman’s Shore- ham Hotel Orchestra. FAST TRAINS EQUIPPED WITH WIRELESS PHONES System Will Be Extended to 36 Expresses by German Gov- ernment. By the Assoc Press. BERLIN, March 20.— Telephone subscribers throughout Germany soon will be able to get into prompt com- munication with friends traveling on any one of 38 express trains criss- crossing Germany. The wireless tele- phone equipment iInstalled three months ago on the Berlin-Hamburg express, while not profitable, has been 80 successful that the railways ad- ministration and the ministry of posts and telegraphs have decided to extend the service to mearly all ex- press trains. ‘The system will be established on the Berlin-Munich express in an ex- perience which will be closely watched. It is feared the high-temsion electric cables which parallel the tracks may interfere with radio reception and transmission. RADIO’S BEST OFFERINGS TONIGHT. * Musical program by aj. Edward Bowes and the "é‘:pf’- tol Family,” WCAP and other stations, 7:20 to 9:15 o'clock. Benjamin Franklin Hotel Concert Orchestra, WLIT, 7 o'clock. Cuban Army Band, PWX, 8 o'clock. Bonwit Teller WCAU, 8:30 o'clock. Atwater Kent radio hour, featuring Claudia Muzio, so- rano, and Alexander Brai lowsky, pianist, WCAP, and other stations, 9:15 to 10:15 o'clock. Ensemble, Rossini's oratorio, “Stabat Mater,” with chorus and or- chestra accompaniment, WGBS, 10 o'clock. Farmers in the Middle Western Btates are the most enthusiastic radio users among the population of the United Btates, a survey just com- pleted by the Federul Bureau of Agri- cultural Economics discloses. The millfon mark in radio sets on farms of the country will soon be passed, with the following States ranking among the first 10 in the number of recelving sets in use 1linois, New York, lowa, Missou Kansas, N braska, Ohio, Minnesota, Celifornia and Michigan. Illinois tops the list with more than 50,000 radio sets, while Michigan, the tenth highest, boasts of more than 25,000. ©One of the most significant facts about the use of radios on farms is that in most cases it has become an accepted utility. The value of a radio set to the farmer is apparent, and its place in the country home isassured, according to J. C. .Gilbert, specialist in market news and radio in the bu- rean. By reason of their isolation, farm- ers have usually bought the hest set obtainable. Very few farmers, it was learned, live near enough to broad- it stations to get much satisfaction from small set. The bureau’s survey disclosed that radio dealers are not taking advan- tage of the possible market for radio sets on the farms. In no State have these dealers pressed for sales very actively, but In places where aggres- sive salesmgn have visited, the num- ber of sets on farms have materially Increased. “The rupldly increasing number of radio sets on farms,” sald Mr. Gil- bert, “places a responsibllity upon those who conduct broadcasting sta- tions and those who have informatlon distribute. When a million farmers turn a listening ear toward the broad- casting stations they expect to hear something worth while. They expect the weather and market reports, agri- ultural lectures. instructions on vari- ous subjects from their agricultural colleges and experiment stations. A great opportunity is presented to there agricultural workers to put their information direectly in the farmers’ hands Atwater Kent Artists. Claudia Muzio, noted [ltalian =o- prane and prima donna of the Chi- cago Civic Opera Co. and Alexander Brallowsky, gifted Russian planist, will present the Atwater Kent radlo hour through a chain of connected stations, including WCAP. The Atwater Kent program will Your cleaver than the others” ““That is due to our Amplion. We tested the other well-known speakers but none was so clear and true to life, or reproduc fully. Fred says it's Amplions are more sensitive. Test an Amp| Uniess you are more than delighted wit mhm:‘vwfifimmu. Cheap ecause lion with Your Set come as usual from New York via stadjon WEAF. This also will con- nect with WCAP tomorrow night for the Weekly opera broadcast WEAF Grand Opera Co., which will be ““Noza di Figaro.” The solofsts will be Elvira. Bond and Genla Zielenska, sopranos? Grace Leslle, contralt Carl Rollins, baritone; Nino Rulsi, bawso, and {iluseppe di Benedetto, tenor, The opera was founded on the well known comedy series by HBeaumar- chais, the music heing composed by Mogart. It was written shortly before the French revoltion and re- flecta the attitude of that time, Daylight Signal Spans Continent. Recent radio testd hetween naval stations at Bellewue, D. C. Mare Island, Calif., 'pave demon strated that the use of thw short wave communications, according radio engineers. This is beliéved the first time signals have been traysmit- ted successfully for 3,000 miles in yia light on as low as 13.1 meters. Al though the Navy is proud of its even lower channels to ascertain what short waves can be used practically ‘The aim of this particular exper ment at the Nuval Research Labora- tory Is toward economy, since short- wiave messages can be transmitted with less power than when long- waves are employed. The Naval An napolis arc station, for example, uses about 350 kilowatts in its long range transmissions, whereas the ent tests succeeded in shooting code mes sages to San neisco with around ) walts. If this research worl proves practical, it is hoped that eventually the Navy may er 1-kilo. walt transmitters, which can ca long distance on short waves. They would cost around $10,000, as against the present cost of high-powered long wave stations approximating a mil lion dellars. Such a saving would he far in advance of any practical economy plan contemplated and would be reflected also in the main- tenance of statlons, If only a hun- dredith or even a tenth of the power was required. Although the 13.1 and 13.4 meter trajls were one way—that is, from Bellevue to the Pacific station—there is no reason why a similar transmitter loented in San Francisco would not eastward equally well. As it happened. the Mare Island station an- swered on the 70-meter wave, a chan- 73 mdio is somuch ed low and high notes so faith- AMPLION th or THE AMPLION CORPORATION OF AMERICA Suite 23. 280 Madison . Balkite “B,” supplying l— plate current from the light socket, s absolute- 1y guaranteed to give satisfaction. 2.Itis che cheapest source of “B” power in exis- tence. It will outlive ever 20 sets of “B” batteries. So far as we know, not one has ever worn out. 3,Over 50,000 Balkite “B’s” are giving satis- factgry service in daily use on all types of re- ceiving sets. 4. Balkite “B" is tne only “B” eliminator that does not deteriorate withuseand does not require re- placements. 5.1t has no bulbs. 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Naval exper only in point vagaries thelr strange points, make ticable for ferent ting station, veral points sels at different distances from a sta tlon, four separate wave lengths are used simultaneoysls the four wave lengths, it is calcu achlevement, it Is planning to try out) lated, will be available, so that every wtation and sh enal dispatch. to the Navy. waves allocated to service lle within the 16. 21.4 to 26.3, 33 to 37.5 and 66.3 to 75 rts point out, however that these short channels are useful of the short broadcast the | transmitting general dispatches.to the and | fleet, the ships of which are at dif- | distances from For service hefween cer lengths, 13.1 and 13.4 metars, is prac- | tain points or to ships in known lo- tical in daytime transcontingntal radio | calities they prove very useful. When naval | short-wave messages must he sent to in on that alane. in daylight. 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