Indianapolis Times, Volume 36, Number 236, Indianapolis, Marion County, 12 February 1925 — Page 13

IJM /Mil v .- \ '

SHORT WAVES BEST BY DAY, NEW THEORY

That With Invention of a Static Eliminator Announced by American 9 . ’ • : 1 ■ Relay League May- Revolutionize . Bv NBA Service ■ , , ■ r ’-IARTFORD, Odnn., Feb. 12.—A theory and an invention ah11—11 nouneed by the American Radio Relay League here, promise £o ' t* A affect radio so profoundly that both its principle and practice may be revolutionized. ' -The theory—that the sun affects short waves so as to make thefn cover greater distances during daylight than the long waves do evftn at night, and with much less power. The invention—a static eliminator that any experienced radio ' builder will be able to construct. * \r The more revolutionary of these Innovations is the new theory, be- ; Hutto it means practically the overtiming of present-day methods arid beliefs in radio transmission, if it is proven and accepted as true.

The static eliminator, long sought by radio engineers, will in short order be merely an addition to the modem radio receiver, to filter atmospheric and other unwelcome noises from it. John L. Reinartz, famous amateur experimenter, is responsible for the new theory. 1 I>r. Galen MeCaa of the laboratory of Horace A. Beale Jr., at Parkersburg, Pa., *a the inventor of the static eliminator. Paradoxical Conclusion Reinartz’s theory Is based on his paradoxical discovery that, while long waves traveled farther at night than by day, short waves went farther by day than at night. In addition, he reports the discovery that there is a definite relationship beween the sun’s effect, the distance and the shortness of the radio wave. Shorter waves, contends Reinartz, can penetrate farther into the ionisation layer of atmosphere formed by the sun than can longer waves, up to the pointy at which they are reflected. Being refleeted at a greater height, the short waves form a much larger circle at which they appear on the earth’s surface than the long waves, and so cover greater distanoes. These also lose little energy be-, cause they have not been subjected, to the absorbing influences of the garth’s surface. Reinartz has been testing this theory for the last eight months, in cooperation with the naval research laboratory at Bellevue, Wfestyng;ton, D. C. He has obtained proof from hundreds of transmission schedules In connection with other amateur stations, during various weather conditions, and finally daring the recent eclipse. Dr. McCaa’s Device * The experiments were conducted on wavelengths ranging from one to fifty meters. _ 'S Dr. McCaa’s static eliminator is the product of a year’s experiments. It is still 'to be perfected. The eliminator is based on this theory: Static dischargers, and power leaks from high tension wires, act as shock exciters to receiving antennas. No matter what wavelength the antenna Is tuned to, the static discharges will “shock” the antenna and so affect the receiving detector. If we could tune the antenna to the wavelength of the signal we want to receive, and then tune the static toa different wave, the disturbance would be either eliminated or mitigated that its effect on the receiver would be negligible. This is what Dr. McCaa’s device does. It consists of an oscillator and several extra coils and Is hooked to any type of receiver. To Find Service Area Government radio men are going to devote their efforts this year to determining the actual service range of broadcasting stations. Some estimate the service area of the average station is only about twenty-fivs

The Indianapolis Times

Jlv

What May Reinartz Theory Mean? - j T IS difficult to con- | ceive just what the I, 1 practical application of the Reinartz theory holds for the future,” reports the American Radio Relay League. ‘‘Will 'it increase by 60 per cent the operating efficiency of' a transmitting station? Will it enable broadcast stations to relay programs across the continent in daylight? Will it enable amateurs, in broad daylight, to carry on communication with amateurs in foreign countries with the same ease that they do now in the dead of night, or early morning? “Will it enable broadcast stations in this country to relay events for retransmission by other stations in almost any part of the world? Will it become the most important development since broadcasting was perfected?”

RADIO R ADDED TO CURRICULUM Schools in Northwest and Alaska in Move, Bv NBA Service SEATTLE, Wash., Feb. 12. There’s another "R” entering the schdol curriculum in Alaska. That’s Radio. That same “R” is also penetrating to the lumber camps in the great pine forests of the Northwest. Up in the Far North, where Uncle Sam is teaching the Eskimos school lore and Is working to make them self-supporting, there have been four “Rs” in the course of study—readin’, writin’, ’rithfhetic—and reindeer. For reindeer raising has been a big part of the schoolmasters’ work and has transformed the Eskimo from a nomadic race, dependent upon fish runs, into a pastoral people raising reindeer commercially. Now radio promises to help not only the Eskimos, but the white school teachers, marooned ry snow, ice and winter darkness, often the only white people in a wide raJius. “There is every evidence that radio is going to be a mighty powerful influence,” declares Jonathan H. Wagner, chief of the Alaska Division of the Bur eau of Education. “The Government will furnish both receiving and sending outfits for these inaccessible stations. Not only will radio be an agency for education of children, but It' will draw people to the community meetings and further good health and village sanitation."

INDIANAPOLIS, THURSDAY, FEB. 12, 1925

JgT . 'f • 'XIk ..•&> £x&x>icy&fc' y : ‘\ *••- jiffl- i affiaWSg

Radio pays, says Maxine Brown, star of “Plaine Jane,” despite the. cry of producers that broadcasting is hurting box office receipts. Her singing, she says, has brought additional patrons to her performances.

INTERFERENCE TO BE PROSECUTED \ . ————— Complaints Received by New Orleans Inspector, Bv Times Special WASHINGTON, Feb.. 12.—Malicious interefernce with radio reception of neighbors will be prosecuted vigorously, according to officials of the Radio Bureau of the Department of Commerce. One such case has already developed. The inspector at New Orleans received a number of complaints of iritereference from Knoxville, Tenn. An investigation revealed that an amateur was using an unlicensed spark coil transmitter without a receiver, which, he admitted, was being done for the sole purpose of creating interference with a listener across the street. As the action was in violation of the law, the case was reported to ths district attorney and came up before Federal Judge Hicks on Jan. 20. The amateur pleaded guilty and was sentenced to pay a fine. Under the law, the penalty for operating an unlicensed transmitter is a fine not exceeding 1500 and the apparatus if forfeited to the Government. The penalty for operating a transmitter without an operator’s license is SIOO or imprisonment for two months or both. The penalty for malicious interference is a fine of SSOO or a sentence of one year or both. Movies to Radio Betzwood, at Norristown, Pa., the first movie “lot" in America, has been sold to a radio fhanufacturing company. Besides anew plant, there will be another high power station.

It Pays

26 STATIONS DROP OUT; NEW ONES LICENSED

WASHINGTON, Feb. 12.—Three new Class A stations were licensed by the Department of Commerce during the past week, while one station was transferred from Class C to A. The new stations follow: Wave length. Power Call. Station. meters, watts. WHBB—Hebei’s Store (John Hebei) 328 McCulloch St.. Stevens Point, Wis. 240 50 WGBQ —Stout Institute, Menominee, Wi5........... 234 20 WGBR—Marshfield Broadcasting, Association, 114 Central Ave., Marshfield, Wi5:..... y.,. 229 10 Transfer Class C to Class A KFEY—Bunker Hill and Sullivan M. & C. Cos., 834 McKinley AVe., K eJl °S£ Idaho- 233 10 Sixteen Class A, one Class B and nine Class C stations were discontinued during January. The deleted stations follow: Call. Staion. KFAR—Studio Lighting Service Cos., Hollywood, Cal. KFCV—-Fred Mahaffey Jr., Houston, Texas.; IvFJK—Delano Radio and Electrio Cos., Bristow, Okla. KFLQ —Bizzell Radio Shop, Little Rock, Ark. KFOZ—Leon Hudson Real Estate Cos., Ft. Smith, Ark. KFPP—G. & -J. Radio and Electric Shop, Olympia, Wash. KFQL —Oklahoma Free State Fair Association, Muskogee, Okla. KFQV —Omaha Grain Exchange, Portable, Neb. WARD—Parker High School, Dayton, Ohio. KDYQ —Oregon Institute of Technology, ..Portland, Ore. WCAK—Alfred P. Daniel, Houston, Texas. WCBK—E. Richard Hall, St. Petersburg, Fla. WDAS—Samuel A. Waite, Worcester, Mass. WDBN—Maine • Electric Light and Power Cos., Bangor, Maine. WEBI —Walter H. Gibbons, Salisbury, Md. WEV —Hurlburt-Still Electrical Cos., Houston, Texas. WFAjN—.Hutchinson Electric Service Cos., Hutchinson, Minn. i WGBL—Albert H. Ernst, Elyria, Ohio. WGL —Thomas F. J. Howlett, Philadelphia, Pa, WlAC—Galveston Tribune, Galveston, Texas. WJAX—Union Trust Co.j Cleveland, Ohio. WKAF—W. S. Radio Supply Cos., Wichita Falls, Texas. WLAL—Naylor Electrical Cos., Tulsa., Okla. WOAE—Midland College, Fremont, Neb. WPAC—Donaldson Radio Cos., Okmulgee, Okla. WQAQ —West Texas Radio Cos., Abilene, Texas.

Additions Bv United Press NEW YORK, Feb. 12.—Five broadcasting stations will be added to the chain which will broadcast the fourth Victor hour tonight at 9 o’clock Eastern time, or 8 p: m. Central time. [ WEAR, Cleveland: WWJ, Detroit; WLIT, Hartford, Conn.; WCCO, Minneapolis-St. Paul, and . WOC, Davenport, lowa, are the new additions to the string which already lists seven prominent Eastern stations. Emilo DeGorgorza, baritone, and Renee Chemet, French woman violinist, are the featured artists Thursday evening.

TRANSMITTERS STUDIED Efforts to Reduce Interference Are Continued. Bv Times Special WASHINGTON, Feb. 12—Efforts to reduce interference caused by spark transmitters are being continued by the Navy Department. A CW 396 radiophone transmitter has been converted into a low power CW transmitter at Philadelphia. This transmitter has been found to afford satisfactory communication to Lakehurst voiding the necessity of using the spark transmitter for this purpose. It is hoped that this transmitter can be perfected so as to afford satisfactory communication to Cape Henlopen and to vessels as far away as the Delaware Capes, in which case the spark transmitter at Philadelphia can bo relegated to emergency use only. A study is being made by Government scientists into the apparent drop of strength in the signals received at Washington from the Pacific Coast and from Europe. The signals are reported weaker than wore those of a year ago.

Siifi .11 ill

SPACE DEMAND AT RADIO SHOW Will Be Held at Kansas City in March, KANSAS CITY, Feb. 12.—The keen demand for space in the radio and electrical show to be held during the week of March 2 by the Kansas City Electrical Club is making it possible for the managers to pick the exhibits as critically as a vaudeville circuit could choose its acts. Tiresome repetition in exhibits is being eliminated. The show will emphasize the wide range of interest in radio and electricity by widely different displays. Interest is assured because of the tna-y ways in which radio and electricity affect the life of the average household. Householders will be interested in the latest labor saving devices, of course, and especially will they be interested in seeing the announcers, whose voices they have heard so often. One exhibit which promises to be a feature attraction of the show will be the complete miniature model of the radio station of the Willard Storage Battery at Cleveland, built so accurately that one can learn from it just how a broadcasting station is operated. E. G. Jacques, president, and G. W. Weston, secretary-manager of the Kansas City Electrical Club, are taking leading parts in the arranging of the show. Band Torts Popular The band contest conducted by station CKAC, at Montreal, for municipal bands of Quebec, has gained fame not only in that province, but throughout Canada and the Unite-1 States. Votes for bands participating have come in from other provinces and States.