Radio station

“ On September 29th speech was successfully transmitted by wire from the headquarters of the company at 15 Dey Street, New York, to the radio station at Arlington, Va., and thence by radio or wireless telephony across the continent to the radio station at Mare Island Navy Yard, Cal. ”

“ Perhaps the next time the radio set begins to howl as if a dozen cat fights were mewling inside of the loud speaker, it is not static that is interfering with the reception from the broadcasting station, but a newspaper photograph which is being sent through the air. ”

“ It is being suggested by the officers of the League and the chances are that the better amateur radio stations of the country will be recognized by the Government. Big things are certainly coming for the up-to-date amateur. Be sure and arrange so that you will not overlook the next issue.
A system of testing among amateurs, will be described also in the next number. We all know how difficult it is sometimes to pick up a distant amateur station which we really should be able to easily work. In the next issue a plan is suggested which will help us all. ”

“ Not by any means.”
“But radio turned the trick just the same,” said Bob slangily. “I’ve read that a message that used to take two days to pass between ranger stations can be sent now in a few seconds.”
“Right!” exclaimed Mr. Bentley, his eyes glinting. “In a little while the saving in the cost of forest fires will more than pay for the installation of radio. We nose out a fire and send word by wireless to the nearest station, before the fire fairly knows it’s started.”
“But just what is it that you do?” asked Joe, with flattering eagerness. ”

“ The League needs more stations like this. Come Mr. Amateur, get your stations working efficiently. If one man can do this, why can’t the rest?
RADIO STATION OF STUARY W. PIERSON CARROLTON, ILL
Power 550 watts
Call letters 9PY This picture shows the neat, novel aerial pole erected by Mr. Pierson. We can all have a strong, well-made aerial support, if we copy this type of pole. 9PY said in one of his letters: “Have written to all amateurs having a fair sending range to join the League. All within 40 miles of here.” Copy his good example. ”

“ There always seems to be something new coming up that you have to work out.”
“If I keep on getting good pay from the broadcasting station, I’ll be able to buy a set, anyway,” said Larry. “What’s the use of working so hard over one, when you can buy them all made up? All you have to do is hook them up to a small antenna, and you get your music right off the bat.”
But the radio boys all scouted this idea.
“Of course you can buy one all made up,” said Bob. “But there’s not half the fun in operating that kind of set as there is in one that you’ve made yourself. ”

“ The winning of the prizes, the first by Bob and the second by Joe, with honorable mention for Jimmy, was a spur to fresh efforts in mastering the wonders of radio. This they carried out at Ocean Point, a seashore resort, at which they spent their vacation. How they advanced to the use of the vacuum tube receiving set from their first crystal set; their experiences in the wireless room of a seashore station; their narrow escape from death on the night of a roaring gale ”

“ So I’ll say it all in one sentence—the radio is the most wonderful invention ever conceived by the mind of man.”
“You don’t need to prove it to us,” laughed Bob. “It’s simply a miracle, and we become more convinced of that every day. I’m mighty glad I was born in this age of the world.”
The boys crowded around Mr. Harvey as he explained to Larry and Tim in as simple a way as possible the radio apparatus of the station. ”

“ You can see that very few telephone messages can be sent in the long-wave-length part of the radio range and many more, although not very many after all, in the short wave-length part of the radio range. You can also see why it is desirable to keep amateurs in the short wave-length part of the range where more of them can transmit simultaneously without interfering with each other or with commercial radio stations. ”

“ They walked out to the radio shack. And there Jack launched into an enthusiastic description of his work. He was seeking, he said, to work out some of the fundamental problems demanding solution as a result of the tremendous increase in both broadcasting stations and receivers.
“There are six or seven such problems,” he said. “First, we must have a radio receiver which will provide super-selectivity—a receiver which will enable the Operator to select any station he wants to hear, whether or not local stations are operating. Such selectivity must go to the theoretical limits of the science. ”

“ Where the electric light tube would have contained only the filament, these tubes at which they were looking contained also a plate and a grid—the latter being that magical invention which had worked a complete revolution in the science of radio and had made broadcasting possible. ”

“ Since the electric waves travel out in all directions any receiving set properly tuned to the wave length of the sending station will receive the waves and the only limit on your ability to receive from high-power stations throughout the world depends entirely on the wave length and sensitivity of your receiving set. ”

“ The principle point is to have a certain number of men available with their equipment at call. In the case of amateur wireless stations and their owners, it probably would not be considered necessary to call upon a volunteer corps for foreign or distant operating service. Such would render the amateur station unavailable. Rather, it is supposed that a Corps would be expected to offer their own stations and their own operating services if such were necessary. The station is the important element, as it is not mobile and its parts cannot always be assembled instantly. ”

“ I made a crystal receiver and was able to hear the Greek Royal Navy station at Votanikos SXA and the old station at Thiseon in Athens itself, which was still a spark station. There just was nothing else to hear. I acquired a Philips 'E' type valve and built a grid-leak detector circuit, but all I got was silence. The four volt heater drew one amp and I had been trying to get it going with a small torch battery. As I became more experienced I began repairing simple broadcast receivers for my friends and putting up wire antennas for reception for people who had bought broadcast receivers. ”

“ They’re coming into the ranks by thousands every day. Nobody can keep count of them, but they must run into the millions.
“And they’re great in quality as well as quantity,” he continued, warming to his favorite subject. “The President of the United States has a radio receiving set on his desk. There’s one in the office of every one of the ten Cabinet members. The Secretary of the Navy is sending out wireless messages every day to vessels scattered in all parts of the globe. The head of the army is keeping in touch by radio with every fort and garrison and corps area in the United States. ”

“ The signal which radiates out from the transmitting antenna carries all the little variations in pitch and loudness of the human voice. When this signal reaches the distant antenna it establishes in that antenna circuit a current of high frequency which has just the same variations as did the current in the antenna at the sending station. The human voice isn’t there. ”

“ The range of intermediate wave receptors is such that they will receive amateur, broadcasting, ship and shore Navy, commercial, Arlington's time and all other stations using spark telegraph damped waves or arc or vacuum tube telephone continuous waves but not continuous wave telegraph signals, unless these have been broken up into groups at the transmitting station. ”

“ Louise and Penny were curious to learn more about the monitoring truck. Jerry took them inside, introduced them to the officers, and showed them the radio apparatus.
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“Our truck is equipped with rotating antennae,” he explained. “Whenever the unknown station starts to broadcast we’ll be able to swing our loops toward the signals. Then we chart the signals and where the lines intercept, the station is located.”
“As you explain it, Jerry, finding any radio station is a simple matter.”
“It is, providing the station doesn’t move in the meantime. Unfortunately, Mr. ”

“ It behooves the amateur, therefore, to look to his station equipment these days, and if it will not stand inspection to fix it so it will. If there is any thing to come of offering the amateur service to the Government, it will come suddenly, and some day we will find a Radio Inspector at the front door announcing that he would like to look your station over. If it is in good order, you will stand among the good ones. ”

“ The station was located something over a mile from the bungalow colony, but it was a beautiful day, and the walk seemed like nothing to the boys. The antenna of the station covered a large tract of land, and the station was capable of sending and receiving messages of almost any wave length. The station itself was a snug-looking building, ample enough to accommodate all the apparatus, and provide comfortable sleeping quarters for the operators as well.
As the boys approached this building they could see their friend, the inspector, sitting on the porch. ”

“ If an interfering station butts in, just decrease the coupling between primary and secondary and then tune again the two circuits. You can feel pretty sure of cutting out the interference and getting clearly just the station that you want.”
“That’s mighty good dope,” said Bob. “I’ve had that trouble more than once and haven’t been quite clear as to the best way of getting around it.”
“Then too,” went on the radio expert, “you must be careful in adjusting the tickler that gives the regenerative effect. Start in slowly by turning the control knob toward the maximum. ”

“ Thus sound is converted into waves, and the receiving station, as you see here, with its aërial on the roof, its detector, its 'phone and its tuner, gets these waves and turns them again into sound. That is the outline of the thing, which you will understand better 'after' than 'before using.'
"The technical construction of the radio receiving set is neither difficult nor expensive ”

“ The act of 1927, c. 169, 44 Stat. pt. 2, p. 1162 (47 USCA §§ 81-119) , was enacted as a regulation of interstate and foreign radio communication; and it is in such activities that the company's broadcasting station is used. ”

“ The coastal stations and the stations on shipboard shall be bound to exchange radiograms without distinction of the radio system adopted by such stations.
Every station on shipboard shall be bound to exchange radiograms with every other station on shipboard without distinction of the radio system adopted by such stations. ”

“ For transmitting a 1 kw. transformer is used with an aerial 75 feet long, and 70 feet, high. This station has worked 1ZL, 8NB, 8ZO, 8YL, and has been heard by many stations in the East. The Club has at its disposal an audion detector and for receiving uses an aerial 200 feet long 150 feet high at one end, and 60 feet at the other. ”

“ Special attention is called to the fact that any amateur having difficulties in the operation of his apparatus may secure the advice of the best Radio men in the State by addressing the Secretary and enclosing return postage, The Club hopes to overcome the amateurs difficulties and make his station a good relay point. ”

“ The first station to start transmitting on the hour must be the one whose QTH lies to the east of the other. The calling frequency for Moonbounce is 144.011 MHz., and the duration of the call is 2 minutes, but for the first minute and a half you call CQ DE SV1OE and during the last half minute you also give the call of the station you are trying to contact, for instance G3FNJ DE SV1OE. You must on no account transmit for more than two minutes because at the beginning of the third minute the other station will begin transmitting the same pattern of signals. ”

“ This was increased and a burst of laughter added when Gus took a piece of chalk and with a few quick strokes made what suggested a broadcasting station, with a rooster shouting “cock-a-doodle-doo” into the transmitter. Then he drew a lot of zigzag lines to indicate the Hertzian waves, and at the other end of the board, a hen listening in and registering horror when she hears the sounds translated into “quack, quack.” Meanwhile, Bill had plunged headlong into his subject.
59 CHAPTER VIII RADIO GALORE
“A good many folks,” said Bill, “get scared when they think about radio construction. ”

“ The Bell System’s experience in serving radio networks dates from 1923, when network broadcasting began. Today, in order to link the nation’s radio stations, Long Lines operates about 200,000 miles of program transmission circuits. And within their own territories, the operating telephone companies, too, furnish some program circuits.
Bell System scientists pioneered also in sending television images from one place to another, by both wire and radio. The years of experience in serving radio networks have been invaluable in solving the problems of TV network transmission. ”

“ When listening in on a thrilling recitation or a superb concert number who of us has not longed to “look behind the scenes” to see how it was done? The girls had made the acquaintance of a sending station manager and in this volume are permitted to get on the program, much to their delight. A tale full of action and fun.
3. THE RADIO GIRLS ON STATION ISLAND, or The Wireless from the Steam Yacht
In this volume the girls travel to the seashore and put in a vacation on an island where is located a big radio sending station. ”