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About Omaha daily bee. (Omaha [Neb.]) 187?-1922 | View Entire Issue (May 16, 1920)
1- 14 C THE OMAHA SUNDAY BEE: MAY 16.1920. GROUND SYSTEM IMPORTANT IN RADIOJLANTS Amateurs Likely to Overlook This Feature Care Will In crease Outfit's Sending Radius Greatly. By JOHN GILMORE O'ROURKE. Superintendent American Radio . Relay League, District of Eastern Nebraska. After, erection of the antenna comes the ground system. The aver age beginner invariably looks upon the ground system as a rather minor detail and is generally satisfied with ' attaching the grdund connection to a ground rod or water pipe. How ever, the ground system is every bit as important if not more so, than ' the antenna. At least 60 per- cent of the amateur stations today would double their transmitting range and considerably increase their receiv- ing range if more precautions were i taken when installing the ground , system. -1 Sizes of Ground Leads. In the first place the ground, lead should be as short as possible. Best results are obtained with ground leads not exceeding 10 feet in length. By ground 'lead I mean the lead running from, the secondary of the oscillation transformer or the an- ' tenna inductance to the ground or point of ground connection. It is also imperative that this lead be as large "as possible if long distance transmission is the aim of the build er. For the smaller type sets up to and including one-fouf th kilowatt power input, twen or three No. 12 copper wires twisted into the form of a cable will be sufficient. A cable composed, of 10 or 12 copper wires of' the above mentioned size will form an efficient ground lead for stations having a transformerrtower input of one-half kilowatt. M least lS-No.12 copper vjires should be jv.sed for stations employing one kilowatt of power as measured v across the primary terminals of the' ' high potential transformer. Copper tubing forms an excellent ground lead. One-half or five-eighth inch tubing should be used for the one- kilowatt transmitter. Connections for Ground Leads. .The next and hardest problem of successfully installing a ground sys- tem is the connection of the ground lead to mother earth. Too much cannot be said on this subject. First, connect the end of the lead to a rod,j preferably copper or brass. This rod should be placed so that pe ground lead will be vertical if pos sible. It should be from eight to 10 feet in length. If possible, bury part of next winter's supply of oke in a hole and place the ground rod in the 'center. A few old copper bottomed wash boilers placed in the hole with the ground rod and topped off with a couple.of sacks of salt will help out immensely. Now run wires or cables from this, main ' , ground rod to eyerything in sight. Chicken wire fencing laid directly under the antenna and soldered to the main rod will help the system admirably. Copper, brass or zinc plates buried and connected to the system also increase the efficiency. Copper wires or cables buried radial ly from the rod will further increase the efficiency. Last but not least add in the water and gas pipes. Con nect to them from the street side of the meter.; . Of course, if the antenna and ground system is to be 1 used only , for receiving, the large ground lead will not be required. . Next weke: Principles Tuning. Queries Department. Anyone may use this department as a source of information regard ing . radio communication Address - all questions, care of Radio Department, Omaha Daily Beft. ' ' , T. H.. Omaha, Neb. 1. I am 14 j years of. age. Is it possible for me to. secure an amateur license? A.-4Yes. 2. Does it cost anything? ' A.No. ; . D. B. (near Douglas, Wyo.) 1. Are two stages of audio frequency amplification practical? A. Yes. , . 2. I have two bulbs, an audiotron and a. Marconi V T. Which bulb is best for use as an amplifier? A. The Marconi tube. Four Mewing Mascots Of Aerial Squad Born 5,000 Feet Above Sea Nogales, Ariz.," May IS At least four "members" of the Twelfth Aero squardron will have a diffi cult time pointing out their "old home places" to their progeny in the years to come. The four are the latent additions to the Twelfth, which has just moved here for sta tion from El Paso. When the squadron moved out of El Paso it became a question of what to do with the mascots, a pair of cats. They were finally stowed away in one 'of the planes. s Upon arriving here after the long flight, there were six cats. The four newcomers were born about 5,000 feet over the arid lands of Arizona while traveling anywhere from 100 to 125 nuTes an hour. Laughs at Son's Joke, pies of Heart Failure Three Rivers, Mich., May IS. Mrs. Caroline Osborn'fell dead of heart disease a'fter prolonged laugh ter over her son's joke. She had just said she never laughed to much in her life'when she fell lifeless to the floor. ' , J Pajamas for Paris Dogs." Paris, May IS. Pajamas for dogs is the latest freak fashion. IUe. Jane As6iminot, an actress, rigged f out two of her Pekinese in .silk pa jamas of blue and rose and presented them to her friends at a reception.' Within a fortnight, dogs in pajamas began making their appearance in restaurants around the opera. Be Rid of Painful Corns "Gcts-It" Makes Them Loosen Up So They Lift Off Painlessly. ... There's no more puin after a few drops of "Gets-It" lands iipon corn or callus and instantly dries, t , In a day or two you lift the old misery- maker right off without even feeling it. That's the last of Mr. Corn and the last of your misery. Millions who have lost their corns the "Gets-It" way say it is the only common sens way to set rid of the pests. fiftta.Tt the never failinff. Sfuaranteed money-back corn remover, costs but a 'trifle at any drug store. Mill by . Lawrence ft Co.. Chicago. . 1 . Sold in Omaha ana recommend as the world's best corn remedy by Sherman A McConneli's Drug Co's. Stores. Using Your Sulpherb Tablets More or Less for Many Years and Have Recommended Them to Many, . Because I Think They Should Be in Every Home." French Aces Engage In Varied Pursuits; 12 Remain in Army ! , Paris, May 15. Of 35 French heroes credited with 10 or m6re enemy planes during the war, 12 re main in the French- army, seven are engaged in commercrat pursuits, four have returned, to college, one is a missionary and the. others are scat tered on farms or in factories. Captain Fonck, leading ace of the allied armies, with 75 planes to his credit, is a member of the French chamber, of deputies and also di rects a business dealing specially with .' automobiles and aeroplane , motors. Lieutenant .Nungesser, who shot down 41 German planes or balloons, is in business. Sous-Lieu tenant Bourjade, with 26 victories i JjU credit, is doing missionary ork among the natives of the Sunda islands. ' Sous-Lieutenant 'Noguet was killed in a foot ball game. Sous-Lieutenant Herbelin is engaged' in newspaper i work at Nancy. - $75,000 Paid for Four 'v Of Kitchener's Bottles : T.. Vrtrtr " Mi 1? f Parish Watson, art, dealer of this city, rnn firmed a renort from London V Vi had armiirrri the. two fam ous pairs of "chrysanthemum bot- ties given to tne late Jora ruicnen er by the emperor of China in 1909 1r Wifinn nnrrVi9irl thf rare ob jects from Lord Broome.. Kitchen- r' heir (nr S75 000 The bottles, Mr. Watson said, were purchased recently. He said that he .intended to add them to his own collection and denied that he had acted as an agent in the ' transaction. v ADVERTISEMENT "I have been This writes Mr. Wm. Cameron,' 1021 Ells Place, Dehver, Colo., and we publish this brief statement to prove the never-ending value of Sulpherb Tablets, in the treatment of such ailments, as chronic consti pation, impaired kidney action, and consequent impure blood manifested m many ways, such as headaches, pimples, boils, rash,' hives, rheuma tism; etc. Neglected constipation undoubtedly brings on a long train r more serious Us and the way ;o get relief is to use Suloherb Tab lets as a laxative,, tonic blood clearer. . : They are made of extracts of herbs and roots and contain sulphur and cream of tartar, thus supplying tne essentials lor a regular and ef fective treatment. Sold by drug gists everywhere at 60c per tube. Advertisement. ADVERTISEMENT MY TIRED FEET ACHED FOR "TIZ" Let your ore, swollen, aching feet spread out in a bath of "Tiz." Tust take voiir sVinpa nff -jiit V,.n put those weary, shoe-crinkled, ach ing, uumiug, wru-pesterea, Dunion tortured feet of yours in a "Tis" batlV Your tflPS will nrricrcrls joy; they'll look up at you and al most taiK and then they 11 take an other dive in Uat "Tiz" bath. When your feet feel like lumps of lead all tired out just try "Tiz." It's grand it's glorious. Your feet will dance with joy; also you will find all pain gone from corns, cal louses and bunions. There's nothing like "Tiz." It's the only remedy that- draws out all the poisonous exudations which puff up your feet and cause foot torture. Get a box of "Tiz" at any drug or department store don't wait. Ahl how glad your feet get; how com fortable your shoes feci. You can wear shoes a size smaller if you desire. 1 feriiS M These Unusual Rug Bargains and Be Convinced Come Early Tomorrow H F YOU arc willing to be convinced we want you to investigate the exceptional , values we arc offering in high grade, serviceable rugs. 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