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BY COMMANDER STANFORD C. HOOPER, U. 8. N. (Copsright, 1922.) Although static disturbances have now viriually ceased for the time be- ing, mysteriously «'sturbing inter- ferences somewhat similar to atmos: pherics occasienally manifest them- selves in radio recelvers during the winter months. This form of interference is fre- quently caused, not by static, but by “leaky” insulators on nearby electric power lines. No assurance can be given by any one that static will not suddenly manifest itself at any time and within any area, but as a constant and uni- versal nuisance it has now virtually disappeared, and as such it will not again return until April. Radio fans of the past and previous summers are familiar with the char- acteristic dlsturbances produced b: this annual but unwelcome visitor, a are also radio operators. They are quick to detect the differing charac- teristic noises of other disturbances, Ssuch as those produced b her waves radiated into space as a re- sult of insulators on nearby high tension power lines defective. - They will not realize what is caus- ing these disturbances, however, will they know what action should be taken to remedy the difficulty. As & matter of fact, nothing what- ever can be done by the radio fan or the radio operator with respect to his receiving outfit. The interferring ether waves will continue to be given A More Welcome Gift Than A Hoosier Kitchen Cabinet off a8 long as current flows in anlinsulator wa which | turl ive insu-|ceiver, thereby electric power circuit with there is assocfated a defe !.Itnr, and these waves will be so I broad” as to Teglster themselves in nearby recelving outfits which may Would Be Harrl to chl be tuned to as low as 300 gicters or as high as 6.000 meters or higher. Replace Leaky Insulators. The only remedy that can be em- ployed is to have the I aky insulator or insulators repla 1 new ones of adequate die!l strength to Kes imposed Every Woman Will Tell Ypu That 4 ‘tric withstand the high volta upon them. This action should be taken. of course. only by qualified linemen of the power companies who are fa- milfar with th. cireuits and who realize the grav. danger to life in- volved in working in the immediate vicinity of “live" high voltage cir- c“(;tl.r or ilpx;anllus. i < existing power 1 v Porcelain-Top Cabinets, $39.75 Up moll AR Bl aes now . and develobment of radio has greatly s benefited the power companies in thig respect, because insulators of very Ereat dielectric strength have hagd to :legl?evelopnd for use at the Navy's i i . - 3 Power radio stations, his Lifetime Furniture Is More Than o Name has led to the development of greats ly improved insulators for wer 2 0| v I pow 2 All insulators deteroriate electric- ] ally with age when exposed to the Mayer & Co. Hoosiers Are Sold on the Club Plan 1y it is not surprising that leaky fn- sulators t . fulators develop “here und there e to time in t et net- Seventh Street Between D & E |work of power lines wnifh et from one end to the country to the other. Electric power concerns will, with- out doubt, welcome any information given them by radio fans or others concerning the prevalence of disturb- ances which may be attributable to defective insulators on their lines. TR (i If they are forewarned. they can take actlon to locate and replace the leaky unit or units before they fail completely and thereby, totally in- terrupt the service over any particu- lar line, with the consequent com- plaints from patrons and the result- Ing avoidable financial loss. An Insulator which slightly defective will continue fto gradually deteroriate electrically from the leakage of current through it to the earth. If the trouble ie not discovered in time it will eventually fail completely as an insulator and become a conductor with consequences to the service, to the circuit itself. becomes only R portant and critical feature of the entire systems. Barring casualties to whole sec tions of the lines from storms or other causes, it may be said that the continuity and reliability of service over these systems depend almost wholly on the quality of the insula- tors employed. Suspension of Wires. From the insulators are suspended the many hundreds bf miles of wires which constitute the channels through which silenty flows i powerful electrical energy which actuate the mechanical appliances in many of our factories and Work- shops; which drives powerful elec- tric locomotives at great speed on some of our railroads: which operate our city and suburban transporta- tion s)?slems: which light entire cities; and which even assists the housewife in her more arduous tasks in_thousands of our homes. To prevent interruptions to the various services, the power companies electric power distribution the supply of A Thermatic Firelesé Cooker For Christma.s Here’s another gift that the housewife or mother can use day after day for years and years. ‘The Thermatic does your cooking-while you’re out or while you're busy doing something else. Photograph Albums “This wonderful cooker is on display at Mayer’s Lifetime S T o 2 - in Furniture. Prices range from $20.50 to $36.50. ! piciur;i el - is worth keeping ¢ SOLVE SOME OF YOUR GIFT PROBLEMS WITH Photograph Albums _ " OUR PRICES .ARE - 15Cw L ifetime Furniture Is More Than a Name Seventh Strect Mayer & CO.' Between DG E disastrous ! if not Insulators constitute the most im-| having become | geveloped 1 D 1OT | in telephoni¢ communication with the | | Grove’s Christmas Kodak Outfit HARRY C. GROVE, Inc. 1210 G Street Open Evenings Until Christmas THE SUNDAY STAR, WASHINGTON, D. C, DECEMBER 10, 1922—PART 1. 31 |“LEAKY” ELECTRIC WIRES CAUSE OF RADIO NOISE Defective Insulatiofi Radiate Ether Waves Which Interfere With : Receiving of Message. ' spend large sums of money, a good portion of which is for inspecting the lines, especlally with respect to the condition of the insulators. It is not always an easy matter for the inspectors to detect insulators which have become defective by the usual methods employed. ‘Their présence s automatically denoted by the functioning of radio, however, and radio apparatus may bhe employed to locate the individual leaky units. Radlo fans may assist the power companies in maintaining their lines in good condition as well as decreas- ing_interference in the ether by re- porting the prevalence of disturb- ances to their representatives, as the Navy. has done on numerous occasions. A specific instance will be cited which may be regarded as typical and which eutlines the methods employed by the Navy radio and power comp- any. While we were maintaining the neutrality prior to our entrance into the war, ‘the Navy took over, manned and operated the then German owned high power radio sation at Sayville, wife also seeks the custody of thelr and permanent alimony. The de- BEATE"’CHARGES WIFE. ‘mn( has been convicted of assault. Limited Divorce Asked in Suit |the Wife told the court, and has served | @ jail sentence recently for such an in- Against Willard E. Balderson. fraction of the law. traction of thy | gipcaknean for atrong drink iz aleo as- arging that her husband frequently | signed by the wife as the reason why Charsie e Y | Balderson, who. formerly Nved al 980 1 beat her and falled to support and Brov- |t b0 e " loat osttions erly provide for her and their infant|as & contracting carpenter. The wifs H 2 gaughter, Mrs. Pearl L Balderson ves. | charged drunkenncss and desertion, and terd; titioned the Supreme Court of | requested the court to protect her by w tl H-fiez of Columbia to award her a | restraining order against the defendant. he | limited divorce from Willard E. Bal- | Attorneys Raymond Neudecker and Leo derson of 500 G street southwest. The E. Simonton appear for the wife. BY RADIO TODAY i pr— Schedule of Local Wireless Entertainment. NAA—Naval Radio Station, Radio, Va. 10:30 a.m.—Meteorological report on 5,850 meters by arc transmitter. 12 noon—Time signal, ship orders and weather report. 10 p.m.—Ship orders, weather re- port and time signal. 10:30 p.m.—Nava) press news (2,650 meters). WDM—Chureh of the Covenant, Con- necticut A ue and N Street (360 Meters). . 11 am.—Morning servic by Rev. Charles Wood, pastor. 3:15 p.m.—Program of music. 3:30 p.m.—Afternoon service: mon by Dr. Wood on Power?" 8 p.m.—Evening service; by Dr. Wi ment Day voices, sermon ser- “What Is sermon od on “Every Day a Judg- * music by a choir of 100 WJIH—White & Boyer Company (360 Meters). 8 p.m.—Services of the Vermont Avenue Christian Church; special ser- mon by Rev. Earle Wilfley, pastor, on “If Winter Comes.” Music by a male iquartet, directed by W. E. Braith- j waite, — l A huntsman called at the farmstead to settle for damage done by the hounds and found only the farmer's wife at home. “Has your good man made an examination yet?” he asked. “Taat he have, s replied Mrs, STOMACH BAD—ATE T0D MUGH! SOURNESS, GAS, INDIGESTION Chew a Few Pleasant Tablets! Instant Stomach Relief! on Long Island, from which station The moment * Diapepsin” 5 85 Hodges. pepsin” | ness, or any stomach distress. Cor- R iSScr Werelthenibothitranemitten) “Rather a cursory examination, 1| Teaches the stomach all mrisery i Whenever the Navy radio operators | Suspect? i i from indigestion, gases, flatulence, Druggists &t this station detected extraneous| “Oh dreadful, sir: Such langwidge | or acid stomach goes. Keep it | sell millions of 3 nolses in their receivers which, byl never heard—never!” Kansas City' handy for heartburn. sournece, full. their charac sounds, denoted | Star. " that ors in that vicinity had ks, the power company’s inspector would be notified by tele- phone. The inspector. while Keeping insu A radio station, would then pull the main power switches on the various individual power lines, one by one, while the operators observed the in- terfering disturbance. When the inspector pulled the switch on the in- dividual line with which the defective ssociated, the dis- red in the radio re- indicating the parti- cular 'line which was causing the trouble. The inspector would then nd linemen out to investigate this ance disapp por eiver nssociated with a small portable loop which the Navy radio station had furnished. The re- ceiver used only a erystal detector. Noise Key to Trouble. ¢ n the from whi 5 A e produced in the Current would then be shut this line by opening the switches and the leaky placed by a new one. As a_result, the interference this source = wouid _automat nd a possible future casuai s power distribution circuit would be obviated. It is obvious from the foregoing that Tadio provides a very effectiv and inexpensiv method for larger power distribution ns in inspecting the numerous insulators on their lines. It is pro able that this method will eventually come into general use for this pur- Dpose. Indeed, It is conceivable that the electric power distribution concerns may eventually be regulated with re- spect to the extent of the disturb- ances their circuits may be allowed iate fnto the ether in a manner E to that in force, or which ma eventually be put into effect with re- spect to radio stations. Such_regulations would doubtless be of benefit to the power companies Macey Sectional Bookcases A Most Acceptable Gift in Any Home Every home has books. The Macey Sectional Bookcase is heau- tiful in design and sturdily built. and affords another gift for the whole family or any member of the family. We are quoting just a few. There are many, many more. Macey Sectional Bookcase, three book sections, top and base, in by resulting in a_ still greater | : 5 provement in the insulation of their golden oak .. .50 < h consequent fewer inter- o - . 2 ruptions to thefr service, a wl‘dll(/as Macey Sectional Bookcase, three book sections, top and base, in liminating one of the avoidable fnis 5 S e quartered oak, fumed finish................ . ... ... .. $32.50 Father (reading a letter from his Mahogany Bookcase. three sections, top and base...... e .$65.00 son at college to mother)—Myopia : . . says he got a beautiful lamp from Mahegany Bookcase, three book sections, desk section. top and boxing. S P Mother—I just knew he’d win some- base ..... Eckar - - thing in his athletics.—Orange Owl. ———— = . . Lifetime Furniture Is More Than a Name 3 . ~ = Sew tréc STOP POPULAR MUSIC || |Sccnth Strect s ol ASPI RIN SAY “BAYER” when you buy. - Insist! 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