Indianapolis Times, Volume 36, Number 218, Indianapolis, Marion County, 22 January 1925 — Page 13

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RADIO UNITES FOREIGN LANGUAGES

POP WOULD MODERNIZE NAVAL RADIO EQUIPMENT „ -- It Would Cost Sixteen Millions to Be on War Basis, Bn NBA Service JnW ASHINGTON, Jan. 22.—More put our navy on a radio alone is concerned. If war were declared today, this sum would havd be raised to about $15,700,000 for radio equipment alone. Admiral John IC Robison, chief of the navy’s bureau of engineering, gives these estimates in his request to Congress for funds to Improve radio installations in the navy. Most of the 88.500,000 needed, says Rqbison, would have .to go for radio apparatus for ships in commission. It would be used to replace spark sets still in use, obsolete receiving apparatus and receivers designed for the wavelengths that are no longer to the navy; “Duplex". Needs It would also provide for accurate measuring equipment to keep the operators on. their- assigned wavelengths and would ateo enable ships to operate “in duplex." That is, receiving and sending at the same time, an essential especially during warfare. Os this amount, however. Admiral Robison has askpd Congress for $550,000 for vessels to be in commission in 1926 and about $900,000 for land station improvement and maintenance. • Higher Cos* •In his report, Robison points out at naval radio Apparatus is more expensive than other commercial equipment, because of special requirements and because they are not bought In great quantities. Wave meters suitable for navy use, he explains, cost about $550 each. When only about fifty or so are ordered, quantity production methods can not be considered as helping to reduce this price. Robison estimates the value of all naval radio apparatus in use today at about $7,500,000, although he adds this amount could never be raised at a forced sale. To replace this with modern equipment. he figures, it would cost Uncle Sam more than twice this much about $15,700,000.

GAIN IN RADIO EXPORTS High Mark for November Trade Is $948,993, WASHINGTON, Jan. 22.—Radio experts during November reach a new high total for any one month of $948,993. Exports, for October were $769,249. The biggest buyers of radio apparatus during November were Canada, Australia, - Mexico, England, Cuba, Argentina and Japan, ROME MARKET GROWS Demand for Copper mrf American Apparatus. WASHINGTON, Jan. 22.—A steadily expanding demand for copper And a rapidly growing market for American radio apparatus is reported in Rome by Commercial Attache Henry C. McLean.

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BY, HUGO GERNSBACK Member of American Physical Society EAST year on a visit to Washington th 3 writer visited the laboratories of C. Francis Jenkins, experimenter of international reputation. It was Jenkins who perfected the shutter that made our present day motion pictures possible. Os late he has been eperimenting with television. He has demonstrated it before Government representatives including the General of the Signal Corps. While admittedly in a crude state, the machine will no doubt be developed and it is the writer’s opinion that within two or three years it will be possible for a man in New York to listen over his radio te—a ball game 500 miles away and see the players on a screen. In this article we concern ourselves with the radio controlled television plane which will come into being immediately the minute the television problem is put on a practical basis. A radio controlled airplane has.

INDIANAPOLIS, THURSDAY, JAN. 22, 1925

already been demonstrated by the French government, and it flew for a lenfthy period without any one on board. The entire control was from the ground. V; 1 >I • The same kind of a machine is being experimented with successfully by our own Government. , The great trouble with radio-jcon-troiled airplanes is that the operator must see the plane. If his paachihe were to make a landing at a ■ great distance he might land the airplane on top of a building or in a river. Imagine now a radio-controlled airplane also being equipped With electrical eyes, which eyes transmit the impulses—or rather what these eyes see by radio—to the distant control operator on the ground. The illustration depicts this phase. Here we have a radio-controlled airplane equipped with a number of lenses which gather in the light from six different directions —north* south, east, west, up and down. The impulses are sent to the Operator on the ground, who has in front of him six screens labeled north, south, east, west, up and down. Each screen corresponds to one of the electric eyes attached firmly to the body of the airplane as shown in the illustration.

The airplane is started from the ground and is sent over enemy territory. Duping its flight the control operator, although fifty or 500 miles away ,will see exactly, what goes on around the plane just the same as if he himself were seated in the cockpit, with the further advantage that sitting before a screen can take in six directions all at once. The radio-controlled television airplane can be directed to the spot where it is supposed to drop its bombs. y In case the plane Seems lost to the ensmy the control operator will simply press another key which will immediately set the plane on fire, bringing it down in flames. Thus it would be useless to the enemy. In the future such radio controlled television planes may be uced not only singly but in squadrons. They can be used in pursuit of the enemy and for taking aerial photographs. For peace purposes the advantages of such a plane are unlimited. It will be possible in the future to send mail planes from one end of the country to the other. Every second of the flight would be watched by the Postoffice Department operator.

Plan Is Successfully Worked Out in New York at Meetings of Mexican and Amerjcan Automobile a Representatives,' BY ISRAEL KLEIN NBA Service Radio Editor j Languages as well as distances, mean nothing in radio. Proof of this is a system in which a speaker in arty language .can be heard by his listeners in the languages they know best. „ This has actually been tried "put successfully at "a meeting in New York between Mexican automobile representatives and American delegates. It was during the conference of the Mexican Automobile Mission held at the offices of the National Automotive Chamber of Commerce. The this trial points to more widespread and enlarged use of the system hereafter. Diplomatic conferences, League of Nations meetings and other such international assemblies might easily adopt the plan and save considerable time and \ expense. # How It’s Pone At the Mexican conference, two microphones were installed in a small room next to the conference room. In this room also were 71 he transmitting. Apparatus and an auditory device so that the operators in this room might hear all that was going on at the conference. At the same time they were , enabled to see everything in tfie next room, through two large windows. A line from each microphone went to the amplifier and from here was directed to the seats in the conference room. Each delegate had a pair of earphones provided for him. Each microphone” was in charge of an interpreter, one from English to Spanish,, the other -from Spanish to English. Each .microphone also had a separate line ,to the delegates from one of the two countries represented. Thus, the Spanish to English interpreter talked to the American delegates and the other interpreter to the Mexican delegates. y Same Operation While an American was speaking his own colleagues could lay down their, earphones and listen, to him directly. At the saifie time the English to Spanish interpreter was translating his talk for the benefit of the Mexicans, who were listening through their earphones. The result is no more time taken up by interpretations after a talk is finished. The actions of each speaker are understood by .all present. This system could easily be enlarged for the use of a more diversified meeting. All that is needed is more interpreters, with additional amplifiers, microphones and ear-sets, to accommodate all languages. . ; In a meeting of ! ten nations, for instance, while one language would be understood directly, the other nine would be interpreted through as many amplifiers and microphones and heard through separate earphones. TEST, MESSAGE HEARD Radio Record Set by the Steamship Utah. WASHINGTON, Jan. 22.—A test message sent .by the Utah when south of Llaneuihue, Chile, was picked up last week by the Rochester in New York harbor, according to a report to the Navy department. The Utah was using a wave length of around 2,500 meters. Amount of power is not known. Distance covered Vras approximately 4,600 miles. General Pershing is aboard the Utah.