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1 N J A o J ft»!. ' ■ tVi* . ■ >> : A Vi * 'S ^ i ; à / ■I BY R. M. SHERRILL (Radio Engineer) (Copyright 1925, by the Bonnet-Brown Corporation, Chicago.) Amateurs Relay Two Messages Around World Two messages, both starting from Columbus, Ohio, U. S. A. have been re layed completely around the world, The first message went around in an ■easterly direction and the second one in the opposite direction. The start ing point of the messages, in both ■cases, was station 8GZ, operated by Mr. L. G. Windom. The first message went direct to British 2CC, then to British 20D, then to Australian 2Cm, then to U. S. 6ABO ■(Whittier, Calif.) and then to the A. R, R. L. headquarters at Hartford, Conn. The second message was start •ed three days later in the opposite di rection and went direct to station 2AC «{ New Zealand, then to French 8QQ, then to British 2NM, then to U S. 1ARE (Pittsfield, Mass.) and then to A. R. R. L. headquarters at Hartford. These transmissions took place on Wave lengths around 20 meters. WGY on Four Wavelengths Simultan eously Following the lead of KDKA, who has for some time been broadcasting on two wavelengths, WGY is now transmitting its regular programs on four separate wavelengths. Besides the regular wavelength of 379.5 me ters, the wavelengths of 38, 109 and 1660 meters will be used. Different calls are being used for each wave-1 length, the calls being 2XAF, 2XK and 2XAH respectively. The General Electric Co. is asking for reports on the comparative reccp tion at the different wavelengths. Re ports which have already come in show that the 38 meter transmissions are coming in exceptionally well at great distances. American Firm Erects Czecho-Slo vakian Station The contract for the contraction and equipping of a new broadcasting sta U. S. Amateur Stations Against Tropical Expedition Amateur radio again distinguished Itself when it established reliable com munication between the Hamilton Eice Expedition and the United Sttaes. j This expedition is engaged in the I study of tropical disease and in mak ing a survey of the territory along the 1 Amazon River in Brazil. The ex plorers were equipped with radio for 1 communicating on the usual commer- j cial wavelengths, and had made no previous arrangements for amateur assistance. When the communication on com mercial wavelengths became unsatis factory, the explorers succeeded in es tablishing reliable communication with amateur stations in and around New York City. Stations 2CVS, 2MC and 2AG have been of valuable assisatnee, i and station 2BR in New York City ! was in communication with the expe dition almost every night for four months. Many messages relating to the work and the supplies of the expedition were handled. Also many personal messages to the families of the ex were delivered over the telephone and, iMM a ! ;;wr WKiWtSy % k t I»-» T^'^N 'A E Ijb W 1 1/1 f A I! - .. iuft ■I S r C iHERE are two ways of judging receiving sets and radio speakers: by demonstration and by the reputation of the mak 1 / Model H er. Atwater Kent wins either way. f / s Red Lodge Electric Co. / tion in Prague, Czecho-Slovakia, has been let to an American firm, accord ing to an announcement by the Czech Ministry of Posts and Telegraphs, The station is to use a power of about five kilowatts and a wavelength of 500 meters. The cost of the station is estimated at about $90,000. * * » New Radio Beam Station For England English experimenters have put con siderable effort into the development of directional transmitters, or beam stations as they are called in England, One such station is now being erected in Lincolnshire, England, for the pur pose of transmitting to India and to Australia. These beam stations use a specially constructed antena, with a reflector which propagates the waves in one di rection only. Thus much less power is required to cover ,a given distance, and in addition, there is greater secrecy to the messages transmitted. As the sizes of the antena and its reflector must be made proportional to the wavelength, these beam trans mitters necessarily make use of the shorted wavelengths, A. R. R. L. Viligance Committees Successful Reports from various parts of the United States indicate that the A. R. R. L. Vigilance Committees have been highly successful in bringing about peaceful cooperation between broad- j cast listeners-and the transmitting amateurs. It will be remembered that these committees were to be formed in every locality where there was trouble from transmitting interference, mittces consisted in each case of three A. R. R. L. amateurs, a representative broadcast listener and a representative The com ' of the local press. . in some instances, answers were re turned in less than ten minutes, Radio Reception on Pike's Peak Colorado experimenters who braved ibe perils of a climb to the snow capped crest of Pike's Peak this sum mer> report good radio reception from that point. A program from KOA ca me in with good volume on their single tube set, and at that high al titude the static was negligible com pared with what it was at the normal altitude. The men who made the climb did not complete their experiments due to suffering from the extreme cold and altitude, but they remained over night on the peak and listened in on broadcasting wavelengths, » * ♦ Amateurs Fight to Hold 150-200 Meter Wavelengths zln answer to the frequent sugges lions, that the broadcasting conges tion be relieved by talking over the 150 to 200 meter Amateur wave lengths, the Amateurs have raised strenuous objections. Through the A RADICAL CHANGE IN RADIO BROAD CASTING PROGRAMS RED LETTER DAYS By A. B. CHAPIN TW DAY YOOR NAfr WOW IRE * FREE-For-All" 4 t tm* Ooowtvfaio. \rs MS TROTS UK« * Oslo more bond' l n n v, /ta î>OWN IM \ ÖjkFBOWY» Ä <■ m roc* i>Aw IUU rs > Broadcasting has grown with such rapidity that studio and program man agers have not given attention to c I / ' Shock*( ' I KMtW TV/ft WARS WOULD . V Break!. tar m ' VKOW ! I U. Y UE CAN LICK , li C PET ER MALT0Y/" v: 3C ✓ T I II I / whAWYAN kmow ' I 'Bout that — l HE wow WITHOUT \DoflTJ oawai^tjf ■ n ■ ■ many points which, in the near future, will be outstanding features of broad casting programs. K-F-P-G, Hollywood, California, one of the latest 500-watt Western Elec : m :o / •j r " N r ■ ) . m yi r IPnH*' m i/a trie stations to go on the air, has created an innovation, inasmuch as Mr. K, M. Turner, the Director, (in-j ternationally known as the inventor of the original microphone and all wave radio set, bearing his name), after making a close canvass of more than ten thousand radio owners, has reached the conclusion that the owners of radio sets should be allowed to se lect the type of program that they wash to hear, the same as they select the type of entertainment when they pay for theatre tickets. This has resulted in well-known radio stars taking charge of definite, fixed hours during which selected pro grams, ranging from vaudeville to classical music, will be put on the air. It has been found that many parties are arranged, depending upon these fixed programs for the entertainments. Hi fPfä X ■Sût?** -\ ,-T Æ0 A* I b V f t . »'ll (S JZt? JiS > boast that reached Fort Benton. She blew up about fifteen miles below the mouth of Popular river in Roosevelt county, Montana. A man spilled whis American Radio Relay League head quarters, the Amateurs have pointed! out ih.it — whilt it is trut that 8.» & of them are operating below 150 meters—60% of the radio traffic they, , „ . . , , ... J handle is carried on above 150 meters. The A. K. R. L. has carried its pro-1 tests to the Department of Commerce, and has received assurance that the department has not yet given the plan any consideration. The department has also assured the Amateurs that they will be represented whenever the plan comes up for consideration. Q.—VV. J. G. asks: "(1) What is the proper charging rate for the Ed sion Storage B batteries? (2) How be Ans —(1) Anywhree from 1 to 3 tenths of an ampere would make a suitable charging rate. (2) The freq uency of charging depends upon how much current your receiver draws and upon how much you use it. Use a voltmeter on the batteries and re charge them whenever the voltage often should these batteries charged ? I RADIO QUESTIONS AND ANSWERS , [Mr. Sherrill will be glad to help you solve your radie problems. Write him in care of this paper.] Q.— P. H. B. says: "I have con structed a short wave receiver and would ijke to know if it will necessary to put up a short antenna for it. The top part of my regular antenna con Ans. —You can use your regular an tenna for short wavelengths by insert ing a small fixed condenser in the antenna wire. Try putting a 250 mmfd condenser in the antenna wire and put one also in the ground wire. Q.— H. L. says: "I have been using a Tungar Battery Charger for my A battery for over a year, but when I connected it up to the battery the other day it burned out all five tubes, sists of two wires about 70 ft. long.' PRICELESS CARGOES ARE BURIED IN THE I YELLOWSTONE AND MISSOURI RIVERS - Miles City, Sept. 27.—Buried be i ncath the shifting sands of the Yel j lowstone and Missouri rivers rest the I treasure ships of the West's frontier idays, their skeletons still holding vast stores that, baaed on government re ports, are conservatively valued at $50,000,000. Cargoes of priceless pelts, gold, silver, whiskey, quicksilver and various merchandise sank in the. treacherous waters of the two streams and most of them remain there today, in the opinion of Elmer Ellsworth Wenner, who is spending a few days in the city making plans for their re covery. He has spent a quarter of a century studying the rivers and lear ing of the wrecks they hold. He has salvaged part of one valuable wreck after is had been sunk thirty years, He believes that the cargoes of others may be recovered by systematic search Steamboating on the Missouri river began 103 years ago when a fleet of jsix river steamers were built under and work. Steamboating Century Ago drops 15% below normal. q _rp. ^ says: "I have been us j n(J , a Brownlie Vernier crystal for . . . , „ I S ° me t,me n ° W f '. but .' ' Kraduall > growing insensitive. Is there any way . . . , - f , h crvsta i, 1() rcstor /. ts s e ensj ? „ ' n ® - ~ ou can )UJ rene ' va crysta s or 1 us ° r >ou can me 1 1 e meta ln walc " thp crystal is mounted, and turn the crystal slightly so as to expose a new surface. Cleaning the old surface wil not help. I ha\o a 6 volt storage battery which is less than a year eld- This battery has not been used for several months however, and ^ refuses to take charge from my Tun K ar charger. U ould it help to put in a fresh solution?" Ans. —No. It is likely that the bat tery plates are sulphated from stand ing discharged so long. Take the bat tery to a charging station and have it charged until the sulphation is broken down. Q.—A. J. says: It was connected in the same way in j which I have always used it before, j What could cause it to burn out the tubes?" Ans. —In the old type Tungar Chargers an auto-transformer was used. Thus one side of your 110 volt line was connected to your battery through the charger. As one aide of 1 each filament is grounded, it will be seen that if the connection to the 110 volt line is such that the "live" side is connected to the ungrounded side of the filaments, there wil ibe 110 volts directly across the tubes. This danger may be eliminated by putting a 2000 mmfd condensed in the ground lead. , government contract for use with the ill-fated Yellowstone military expedi tion that had as its object the estab lishment of a fortified post at the mouth of the Yellowstone river. The expedition proved a costly failure and one of the boats was sunk in the Mis souri river near the mouth of the Yel I lowstone. This was the Thomas Jef | ferson, and it was the first Missouri j river steamer wreck. There were a few other wrecks of government steamboats between then and the beginning of the American Fur company's steam navigation in 1831, one of the boats being the George j Washington, which went down as the result of striking a snag below Council Bluffs, la. The American Fur Co. | lost several boats with valuable car \ goes. One of these was the Assinni boine, which was grounded in 1836 : near the present site of Bismark. This boat was a single engine sidewheeler, and in 1833 it had the distinction ôf ! carrying Maxmilian, Prince of Wied, to Fort Union, at the mouth of the Yellowstone. Her cargo of 1,185 packs ! of pelts and robes was lost when, [ after being stranded, the boat caught fire. Four live buffalo being taken to St. Louis were run into the river and escaped. In 1862 the Pontiac [ went down with a cargo of 600 barrels of whiskey, 560 casks of wine and 600 casks of brandy, none of which ever , was recovered. The Louisville, load ed with qiucksilver, whiskey and gen eral stores went down forty miles be low Sioux City. At this same spot are eight other sunken steamers. The river has changed its course and the . w ™*s are buried at a point four .. - _ ml,es Irorn the stream ' Most Costly Wreck One of the most costly wrecks was that of the American Fur company's boat, the Kate Swinney, that went down about fifty miles above Sioux City in 1856. It carried the furs of two seasons valued at hundreds of thousands of dollars. Another great loss of the Fur company was through the explosion on the Chippewa at Dis aster Bend in 1861. It was the first steamboat that passed above the mouth of the Marias river to Fort Me Kenzie and was one of the first two T w* RADIO ^LONC DISTANCE* ▼NADS MASK / *1» J* Pc® . «si "-<4: Âï z •»-J-J V V '' °ol 9 rity/ Cö co» p; He Recognized ÏU* Sixer's Foil» Thousands of bliLr: Avnryl F ROZEN in but & few •Itérera tro.c fcwt North Pole, Donald MacMillan, famous Arctic t. plorcr and hia brave band of sevrai follower», t— » f r the long polar night to end, A radio set—aZen«c—^waatheir only com munication with the -outside w.-xvi. His fricrwl, Hcbinson, slowly tufMV the di-.i. Suddenly they heard a woman's voice, "ftm, that s-rjnds like your sister," he said to MacMillan in great excitement. And it was ! Miss MacMillan in Chicago sending Christ mas cheer to her brother in the h.-ven north. THEY COST MORE BUT THEY DO $100 to $475 MORE-/ 0 Uig 9, This remarkable achievement is jut an abnormal proo* of Zenith's ability to receive tances with phe nomenal clarity. For distance, tor clarity, for selectivity, we challenge the radio world to produce an instrument that equals the Supt*-Zenith—King of all Supers. Ask any Zenith dealer foe a demonstration of Zenith's amazing performance. <0 H The Kin* CROStE-V Dealers of Also All Superf JEFFERY HARDWARE COMPANY fire from a candle he was carrying. He jumped in the river, but the fire ^ ad s P re ®d to the boat. The ship was beached and its crew left. After floating two mile8 down gtream twen . «uku« mu mu» uv«n nn»m iwen ty . five kegs of powder it was carrying exploded. Altogether, between 1819 and 1898 there were more than 205 steamers sunk in the Missouri and Yellowstone. Eighty per cent of these were wrecked by striking snags. No Expert "Dan, what's a heifer—is it a pig or is it a sheep?" asked two sailors, Dan paused reflectively. 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