Indianapolis Times, Volume 37, Number 122, Indianapolis, Marion County, 21 September 1925 — Page 30

TWO-WAY RADIO MADE POSSIBLE .Polar Trip Establishes New Communication. NHA Hrri'vce Writer WASHINGTON. Sept. 21—The MacMillan expedition, failing in its puipose to explore the polar regions, has achieved at least one thing as far-reaching in its importance as the polar flights would have been. This was the establishment of long distance two-way radio communication on short waves, during daylight. Radio amateurs in various parts of the country have reported contact with the explorers in the north. Some have been able to return messages directly to the Bowdoin or the Peary. The naval radio station at Washington has been receiving messages from the naval representatives on the Bowdoin almost daily. It was mostly from • these messages that the world learned of the progress of the expedition, although additional news came drifting through amateur sources. At all times, the messages were sent on 20 to 40 meters wavelength, and On comparatively low power. The Bowdoin and the Peary have been in constant daylight, the condition existing at this time of year In the far north. With constant daylight up north, and daylight in this region, at times, low wave ciessakes have been received and sent by American amateurs. These two-way talks have proved the efficacy of low wave communication during daylight, and on low power. Ordinarily, the best reception is noted by night. Low-wave, lowpower transmission, however, has proven Itself an exception. What the outcome of these successful experiments will be Is hard to tell. But the low-wave transmission will be put to a more practical use than it is today seems almost certain. LISTENERS GET PICK The German station at Koenigswusterha*sen has arranged to broadcast any concert chosen by private Individual at the rate of <0 gold marks an hour.

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Alamo Sales Company, 131 E. Ohio St. B. and B. Accessories Corporation, 927 N. Capitol Ave. Baldwin Piano Company of Indiana, 35 Monument Circle. Brendel Charles, 916 Ft. Wayne Ave. Broadcast Receptor Entertain ment Service, 3530 Salem St. Brum wick Shop, 124 N. Pennsyl rania St. Carlin Music Company, 143 E. Washington St. Clifford Company, A. 1., 605 Odd Fellow Bldg. Cooper Rubber Company, 1. J., 338 N. Capitol Ave. Continental Corporation, The 655 Century Bldg. Circle X Radio, Indianapolis. Edie Battory Company, 25 W. Eleventh St. Ekko Company The, 111 W. Monroe St., Chicago, 111. Equipment Service Company, 719 N. Illinois St. French Battbry Company, Madison, Wis. Bibson Company, 433 N. Capitol Ave. Guarantee Tire and Rubber Company, 211 S. Illinois St. H. E. Electric Company, 612 N. Capitol Ave. Hatfield Electric Company, 102 S. Meredian St. Hook Drug Company, Illinois and Washington Sts. Indiana Manufacturing and Electric Company, Marion, Ind. Indiana polls Electric Supply Com pany, 122 S. Meridian St. Indianapolis Music House, 134 N. Pennsylvania St. Indianapolis News, Washington St. Indianapolis Radio Club, 402 City Hall. Indianapolis Radio Corporation, 605 I. O. O. F. Bldg. Indianapolis Star, 301 N. Pennsylvania St. Indianapolis Times, 214 W. Maryland St. Indiana Battery Service Company, George Taylor, 1136 N. Meridian Si. Klein, Seth. 1711 N. Illinois St. Kellogg Switf v hoard and Supply Company, 1066 W. Adams St.

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Kresge, S. S-, Company, 41 E. Washington St. - - Kreig Mellon Furniture Company, 316 S. New Jersey St. Kruse-Connell Cos., 33 W. Ohio St. Lauter Company, The H. W., Washington and Harding Sts. Larkin company, M. D., Dayton, Ohio. Madden, Thomas, Indianapolis. Messenger Company, W. H., 201 E. Washington St. Meyer-Kiser Bank bunding, MeyerKiser Bank. Midland Electric Company, 309 Transportation building. National Carbon Company, Chicago, 111. Nelbea Radio Company, 119 W. Maryland St. Newcastle Radio Cabinet Company, 1102 Race St., Newcastle, Ind. Okay Radio Corporation, Brazil. Ind. Pearson Piano Company, 128 N. Pennsylvania St. Pettis Dry Goods Company, 25 E. Washington St. Prest-OLite Company, Speedway, Ind. Publishers Association, 139 N. Clark St., Chicago, 111. Radio Broadcast, Garden City, N. Y. Radio Cabinet Cos., 2123 Olney St. Radio Corp. of America, Chicago, 111. Radio Digest, 510 N. Dearborn St.. Chicago, 111. Radio Journal, 317 Central Ave., Los Angeles, Cal. Radio Sun, N. Y. Riser Bros., 561 E. Washington St. Sanborn Elec. Cos., 309 N. Illinois 6t. Slagle Radio Cos., Ft. "Wayne, Ind. Sleeper, Inc., M. 8., 62 Vanderbilt Ave., N. Y. Stewart Sales Cos., 509 Occidental Bldg. Stewart Warner Pro. Scr. Stu., 612 N. Hanford 9t. 38th Signal Cos., Capt. H. W. Hyatt Curdy, 1203 Merchants Bank Bldg. Udell Works, Inc., Twenty-Eighth St. ami Barnes Ave. Varney Electrical Sup. Cos.. 121 N. Meridian St.

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AMATEURS TO ASSIST ARMY Will Be Trained as U. S. Operators. Hu V KA (ten ire. HARTFORD, Conn., Sept. 21 Amateurs of the United States are to be trained as operators for every national guard and organized reserve unit in the country. They will constitute a complete network of communication by which every military unit will be in direct touch with headquarters at Washington, or with any other unit in the country. ''Organization of this radio net has been put up to the American Radio Relay League, headquarters for the 17,000 amateurs of the United States, by the U. 8. War Department. The organization is co-operating with the U. S. Signal Corps in this work. The first move in this plan is the enrollment of memliers of the league in the various radio nets that will comprise the organization. The enrolled amateurs will be assigned as operators for batalions. regiment*, brigades, divisions and corps area headquarters. Thus every corps urea will lie entirely linked up by these stations. It is the hope of the signal corps that this plan will build up a strong defense unit of civilian radio stations that will be able to function when land lines are down because of storm, riots or actual warfare. The amateurs also will constitute an active reserve force, trained ii army methods and in the principles of using radio in the field. TWO HUNDRED WANT AIR The Department of Commerce is holding 200 applications for licenses to broadcast. They have to be held up. however. because there- is no more room in the air for broadcast wavelengths. RADIO FOR POUI'E A special committee has been appointed in Holland to study the question of whether radio can lie of any service to the police organization. At proHont th° committee is investigating Ainerie an experiments wi li radio as an aid to police efficiency.

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