Evening Star Newspaper, May 10, 1925, Page 31

RADIO NEIGHBORS 1 TOCUT CONFLICTS Canada and U. S. Stations to Co-Operate as Re- sult of Parley. BY CARL H. BUTMAN. . Radio broadcasting in the North American continent has now come to such a pass that conferences with our radio neighbors across our borders are necessary in érder to minimize the interference between broadcasting stations. .The conference between the Canadian’ and United States radio officials held at Detroit last Monday is thé first of a series of similar conferences which may soon be held with Mexico, Cuba and probably some of the Central American couptries, it Lroadcastifig increases there. Ever since the last radio conference here, at which Director of Radio C. P. Edwards of Canada was present, e assignments of wave lengths in Canada and the United States have been made with careful regard to adjacent stations across the border and some interference has been avolded. Early in January the De- partment of Commerce decided not to use the six following wave channels, which gave Canada the unrestricted use of them for broadcasting if it was so desired: 291.1, 8123, 329.5, 356.9, 410.7 and 434.5 meters are not assigned to broadcasters in the States, but are used in Canada. There is one exception, however, 434.5 is used by The ‘Arlington and Fort Bragg semi- official broadeasting station. Capads Has Six Waves. Canada’s 75 stations, therefore, have six exclusive waves, but that govern- ment could, of courSe use any or all of the wave lengths in the broad- cast band between 280 and 545 meters, just as rightfully as United States stations use them.. However, Ameri- can broadcasters got the start on our Canadian nelghbors by ‘about a yeas, | and, as there are 566 of them on the alr today, Canadians desiring to broadeast find it to their own interest, as well as more practical, to dodge this interference. It is very decent of them and fans should appreclate their_attitude. Although there are but 75 stations, they have confined their activity with- 1 band between 291.1 and 516.9 meters and @0 not license the use of a channel to a border station if a nearby United States station is using the same wave length. A Canadian station in British Columbia uses the same wave length as one of our Buf- falo stations, but it is located a suffi- cient distance so as not to interfere. This is also true with a wave used in Detroit, and another used in Porto Rico, which is under the dmnmsnjt s control. ] Conference Called. Some interference existed, however, and it was also d to elimi ship spark sets on the lakes, if pos- sible, in the interest of broadcasters on both sides of the line, so a confer- ence ‘was called. Ships on the lakes have been asked to vacate the wave channels 600 and 706 meters and be- low, and some of the border shore stations have also been requested to operate on higher wave lengths. The results of the conference at Detroit should go far toward better reception in both Canada and the States and make for amity among both radio fans and commercial interests. It was Can- ada which requested the confere: and it is probable that the new all tions which will result will tend to in- crease and improve her broadcasting rights of way. Cax . _Ontotrio leads in fumbers of Cana- dlan broadcasting stations, having 24 stations on the air; Alberta is second, with 14, while British Columbia and Quebec tie for third place with 11 each. 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Ward, the eminent physici: nd stomach specialist of New York, has decided to give a copy of his | remarkable book. “The Inner Mysteries {of the Stomach,” and also proof treat- ment embracing his new principle. to every man and woman who suffers from | gas. indigestion, catarrht of the stomach, heartburn, tenderness, pourness, dyspep- sa, constipation, siomacn disirass, .Egl» or_any form of stom: wel, EE on the. pary :,T'f:fi'}m‘ authority, ¥ho *has ‘sthdied. the ‘workings. of thé stomach and vital organs for aver thirty the authorities Trertome the teomendons n 6 the iremendous {ncredse : Ous ‘stomach 'disaases thal iead to 80 many' deaths from ulcers, cancers and Wrong diagnosis. - < it book, illusirated with X-Rave, re- truths ignored by many doctoi reatment of oo Hiok and aMicred: ‘orea in wherever is_bringis M’bleflwg"‘ H A have suftered and doetored without for "wooks.” monine sad in masy cases wiah & copy of “The Tnner Mys- socies Ot the Stomach, proof f Dr. ' adacnt Tor e Stomach.. wikhogs o Sote Taouveror viastpe and ‘cost of 4his sa- feober. No te by Be R S or Tater o1 1 o %«m‘( rget. ' Address ¥ rost, Now York, . ¥ —a had §5, Saskatchewan 4 and New Brunswick and Nova Scota had 3 South Border Better. . On our southern border the situation is not as bad, but may become scon difficult to handle, since there is no agreement with Mexico regarding the use of the same wave lengths In broad- casting, especially if many more Mexi- can stations open up or those in oper- ation increase their power. At present there areonly 20 stations ini the south- ern republic, only 3 of which gre very regular in transmitting and come irto this country to any extent. They use wave lengths between 3285 and 450 meters. Difficulties of this nature, however, it is pointed out by officlals, may be considered at the next pan- American electrical conference, sched- ;Illod for July at Rio de eiro, Bra- Cuba, the next nearest neighbor, has today 38 stations, several of which are frequently heard by fans in the Btates, particularly PWX, the 500-watt sta- tion, on 400 meters, the same wave length/as WEHAS, at Loulsville, Other stations operate anywhere from 150 to 400 meters, but few of them are over lel!hWL’tJl‘: In‘power. e Detrojt conference seems sirable step in effecting a clom‘egr.l: tact with our northern radio neighbo and it is belleved that similar sessions will ald casting on this conti- nent. RADIUM KEPT SECURELY WITH SWINGING CHAINS Prague Institute Takes Unusual Steps to Protect Supply of ‘Precious Element. Correspondence of the Assaciated Preba, PRAGUE, April 4.—Great ingenu- ity has been displayed by the Prague Radiological - Institute in protecting the radium in its possession, and the methods are regarded as so complete. that the kindly old professor respo sible for the safety of the tréasure has no fear of burglars. The priceless substance, first of all, is stored in tiny, stoppered phials, and these are in a larger glass coi tainer completely sealed by fusing the orifice. Next comes a thick-sided lead box, which is carefully locked up in a modern, indestructible safe. All around the safe, a few inches apart, hang loose chains, making it imposai- ble for any one even to approach the safe without moving them. The slightest movement of a chain rings an alarm bell in the watchman's quar- ters. n&lhun‘ down for the intérest in radio cast wave length, there are at least 20 applicants for class B broadvast privileges and about a hundred indi- not a requirement and is seldom the usual method of procedure. Or- dinarily, a prospective broadcaster first leases a site, then buys ex| equipment and sets it up befo; asks the department if there vacant air channel for him. No ship- ping company would buy its boats and equipment before it found out if it could get & route and a license to do business, neither would an auto-bus liné, but in this new game of broad- casting some of the more practical sentials and necessary requirements seem to be neglected to the cost of the would-be radio phone station op- erators. Some citizens now seem to realize that there is no more room for class B, high-power stations, but the con- gestion among the smaller class A stations, in consequence of the few channels assigned to them, is worse, There are 468 stations now, 54 of them operating on 500 watts, the max- imum power allotted to.this class, and there are dozens of them on the same wavelength. As the power increases and there is rumor that many A will be permitted to go up in power this Summer in an effort to overcome static, the situation becomes worse from a reception point of view. With increased power they cover more terri- tory and therefore interfers with more stations, just as the higher-powerei B stations do, even when there are but two or three to a wavelength. In the low A waveband of 226 meters, for example, there are 16 stations noiv operating. : ‘There is no record kept of proposed stations until formal applications are filed with the district radio. super- visor, but from one western supervisor comes the statement that there are 32 stations in California alone plan- ning to ask for broadcasting licenses as moon as their stations are com- pleted. This official cannot possibly satisfy more than 10 or a dozen of his prospective customers, many of unde have already bought or ordered their equipment, despite the reiterated sta it the broadcasting janes th ether are all crowded and ‘way are no longer avallable except in some of the still “open % ‘The fans seem to take the view that there are enough brosdcasters now that no more should be ted to come on the air unless they can guarantee unique programs. This, however, is just what each potential radio entertainer is glad to assert, be- Heving that he is telling the truth. Probably some of them could intro- poss * included in this chal Special permission to extehd -its cables _to the Sylvan Theater was given WRC by the Government and the laying.of this cable will be com- pleted this week. ‘The first of the concerts i sched- uled for May 21 from 7:30 to 9 p.m., and will be conducted by Capt. Wil- Santelmann. Taylor Bran- son, second leader, will assist at the opening concert. Following the open~ ing concert, the Marine Band will ?hy ‘weekly, - every Thursday night rom 7:30 to 9 o'clock. Its programs will be announced by llsworth ‘Tompkins. The Bylvan Theater is one of the 14 | most picturesque spots in thi stations, which are all expe: an bave their own talent well {ined up and trained, not to mention a large OF thene starions in opareiion I tving of these ns in o lon its best to learn what the lm want and to give it to theny; many stations which_failed to do so have fallen by the wayside, their exper! ments constituting a considerable financial loss. . Some organizations believe they could serve a special group in the great radio audience not now with what they desire. In a few I stances this is true, particularly some religious orders are not on the air in certain section: All Europe, it is pointed out, has not 80 many broadcasting stations as there are in the United States alone. ° When the question of international broad- casting comes up at the Paris or ‘Washington conference, it may be that we shall have to release some of our much desired and used radio channels for intercontinental use, it will be pointed out, and rightly so, that we have no more right to t 205-546- meter band than other countries and that we share the wave lengths. If this is the case, the. sit ation will become worse unless number of our stations drop out of the game. ‘The ‘increase in numbers, howevi is continuing gradually; in April, stations, mostly smaller ones, ‘ceased to broadcast, but 27 new ones opened, increasing the total on the air May 1 by 3 over the fizure on March 1. /WRC Schedules Summer Concerts. Arrangements to broadcast the Summer concerts by the United States Marine Band to be played at the Sylvan Theater, have been com- pleted by Station WRC. In addition to broadcasting the - concerts in ‘Washington, WRC will send the con- irnished | to tal and the concerts played there last Summer were among the most pop- ular ever presented in Washington. The theater is an open-air stadium, located just south of the Washington Monument. radio audience listens to of Grace Church broad- cast every Sunday morning by sta- tion WJZ, they rarely stop to consider the great amount of engineering technique and study that is necessa maks ch an event possible. Be- fore considering the work done at the church itself, bear in mind that it is & remote control event and therefore the lines used in carrying the sounds from the place of the broadcasting to the studio must first be tested and proved to be in first-class condition for transmittidg the delicate and affected: currents used in car- rying the sounds from the church to the lines have been found to d condition, then comes the ng experiments at _the church itself. In placing the micro- phone great care must be exercised. In the chimes in the tower of Grace Church the largest bell weighs over two tons and has a diameter at the mouth of about five feet. It can be readily seen that any mechanism made to ring a bell of such size and ,weight must make some noise in operating nd to tRe sensitive microphone such a moise is amplified until it sounds like peals of thunder. Furthermore, it the microphone is placed too close the terrific crash caused by the huge hammer striking the side of the bell momentarily paralizes a diaphram that is located too close to the point of impact and results in blasting. On the other hand, if the microphone is placed too far from the bell tower extraneous -moises enter -into the broadcasting and mar the efféct. An example of such an incident occurred y day last Winter Wi chimes of Trinity Church on lway at the head of ‘Wall street, when the church author- ities would not allow an engineer to risk his neck by venturing out on the lcy roof of the church to place a microphone, and, therefore, the “pick up” was made from the churchyard below, with the result that whenever trafic changed direction at the junc- tion of Broadway and Wall street the radlo audience wag informed by the blasts of tI whistle, which y m ed before the chimes can be sent out to the listening ‘audience. 4 Tenants to Get Radlo. Secretary Jose Benitez of the Mexi- can embassy, who sailed for home last week, is planning to install a radio relay set at his haclenda in Monterey, Mexico, 80 that he can fur- nish entertainment for his ten- ants. Benor Benitez is already a radlo fan, having a fine set at his home, but he is anxio to make radio broadcasts avaflable ‘to some 38,000 farmers and villagers on tates. His scheme is to install a small radio transmitting station at his hacienda, Ty | so that he can rebroadcast the radio programs heard on his receiver for his tenants to pick up on crystal sets. Naturally he is most interested in the Mexican, Cuban and other Span- ish language stations, but he will also relay good musical programs from the States. Music seems to be a sort of “Esperanto” of the air, in that most of it, except perhaps Chinese music, is intelligible to all listeners. Ocean Transmissions Differ. Apparently “it is easier to transmit by radio over the Atlantic Ocean than it is over the Pacific. Recent field strength tests made at San Diego by Dr. L. W. Austin of the Bureau of Standards on long-wave high-powered stations across the Pacific indicate that the received signal strength is only a fraction of the average sig- nal's strength after crossing the At- lantic, but of course the distances covered by the far eastern, stations is greater. The arc station at Cavite, P. I, 7,600 miles from California, came in with an average fleld intensity of only 2.04_intensity, while the Majabar arc at Java, 9,400 miles away, was re- celved with 4.02 average intensity. On the other hand, transatlantic re- ception is usually varied between 20 and 100 microvolts per meter. It is pointed out, however, that as Cavite and Malibar can carry on communi- cation with California, it speaks for Camp Fire Girls. There will be a meeting of the Guardians’ Association of the Camp Fire Girjs at the home of Miss Mil. gr;d Louden, 1865 Newton street, at :30 p.m. The Awiyeya Camp Fire Group, Miss Mildred Louden, guardian, met at the home of their guardian Satur- day evening. The Camp Fire supper was prepared by Helen Greenwald, Anna Harper, Mildred and Betty Lari- mer and Edris Dodge. After supper a builness meeting was held, at which time the program for the moni f May was planned. Later in the eve- ning the girls started on some book- binding. § ‘The Tatapoochon Camp Fire Group, Miss Dorcthea McDowell, guardian, ve a play Friday evening entitled Sweetheart. The following girls took part: Julia Cookman, Helen Howard, Elsle Tarmon, Bertha How- , Roberta Thomas and Harriet pp. ‘Music was furnished by the Hilo Hawalian Mglody Boys. Candy was sold by the Neechee Camp Fire Group. The Auzunta Camp Fire Group, Mrs. 8. James Dennis, guardian, held a council fire Monday evening, at which time Lucy Redman received the rank of wood gatherer. Mrs. Dennis gave a talk to the girls on forest con- servation and on birds. They are planning a hike for next week. The Keko Wdinnegam Camp Fire Group, Miss Carolyn Giles, guardian, is busy working on headbands, Trixie Groff having finished hers. Mrs, Spencer’s Camp Fire Group held a council fire Friday afternoon. The regular entertainment followed. Both of Mrs. Spencer’s Camp Fire groups had their pictures taken in thelr costumes worn in “The Eagle and the Star,” by C. J. Anglier. —eeee e the excellent there. To Broadcast Behind Glass. ‘Travelers who pass through the new St. Paul Unfon Depot will have an opportunity of observing a broad- casting station in action soon after June 1. One of the Jual studios of WCCO, the Twin City gold medal broadcasting station, will be locted on receiving conditions the main concourse, separated only by glass panels from the station recep- tion room, through which thousands will pass en route to and from trains on nine raflroads. The other studio of WCCO, located/| in Minneapolis is on the roof of the Nicollet Hotel, is said to be the most luxuriously furnished of any in the country. " Its equipment is to be duplicated in the St. Paul studio. , Suite of three offi- ces located on 6tk -floor at cormer of 11th and Pa. Ave. One corner room, one facing Avenue, one facing 11th St. These are bright, cheerful offices, all outside exposure, in modern office build- ing. Approximately 800 sq. ft. RENT $150 Per Month Apply 610 Star Building 77170 P12 IP LI EI IS I Phone M. 5000, Branch 3 'R /7077277277777 Will the North Pole Be Reached by Airplane? The inside story of this greatest of modern adventures will be For four centuries the North Pole has been the ‘goal of the bravest and hardiest of explorers. In sailing vessel and steam- ship, by reindeer and dog sledge, on foot and in balloon, man has battled to gain the earth’s top. . All his attempts—with the exception of Peary's—have failed. Now man is using one of his latest machines—the airplane—to run the hazar of the cruel Arctic ice and snow. The Nor- wegian Aero Club expedition is already at Spitzbergen, from where the hop-off for the North Pole will be made. Two planes, each carrying three men, will attempt a 600-mile non-stop da. Arrived at the Pole, the flyers will descend for 24 hours to make soundings and observations. The flight will be man's greatest plunge into the unknown. The ex to dxe‘ pole. on is faced only with the problem of reaching the Pole, but of flying 600 miles back to its base. lanes will carry complete polar outfits, including ski-sledge s and boats.. The men will be‘ prepar:dy to attempt to return to Spitzbergen or Gréenland on foot should the planes come to grief. == For Roinance and Dangcr The North Pole Flight Expedition has hardly had an equal in the entire history of exploration and ldventurg. . In addition, The Star will publish the Norwegian Aero Club, which is spon- soring the expedi- _of The Star, end the North American Nows- paper Alliance, is the énly Amevicen: journalist wish the expedition. His day by day 2 of the & The Story of the Flight = told exclusively in The €bening Star and: The Sunday Star Will be told exclusively in The Evening Star and The.Sunday Star by special correspondents and authorities on Arctic exploration. . Capr. Felix_ Riesesber, ¥, mevigater | m. mevements as they ), Americes, in interpret the ex- are veported by Among them is Lincoln Ellsworth, the explorer, the sole American member of the ex- pedition.