Radio broadcast

“ Bill explained. "It will be all right in the morning. If you want to listen to the radio, you can use the portable radio directional finder. That always works."
"I want to catch the 5 o'clock news and hear the latest on our satellite," Carol replied. She went to the RDF and switched it on to the standard broadcast channel. "Anyhow, I'd feel better if we could put out a signal. The way we're limping along with water in our gas is no fun. ”

“ Broadcasts by Radio Free Europe and Radio Liberty to these countries should be increased both in air time and in quality. They should also be broadcast in FM frequency, not short-wave, in order to reach the largest percentage of the population. ”

“ Applicant shall show that there is installed in each aircraft a type certificated radio antenna system, which has for its purpose the collection of radio range signals, weather broadcast and emergency messages transmitted within the frequency range of 200 to 400 kilocycles. The design of this antenna system shall be such as to eliminate insofar as possible, consistent with the advancement of the art, that type of interference commonly known as rain, snow, sleet, or dust static. ”

“ The remarkable growth of the radio-phone has, of course, been due to the radio broadcasting stations which have been established in all parts of the country, and from which concerts, speeches, market reports, baseball reports, news reports, children's stories and religious services are sent out. ”

“ The simultaneous broadcasting of a work incorporated in a radio or television programme by the organization making the original broadcast shall not be deemed a separate communication to the public. 7. The broadcasting by satellite of a work incorporated in a radio or television programme means the act of introducing, under the control and responsibility of the broadcasting organization, the programme-carrying signals intended for reception by the public into an uninterrupted chain of communication leading to the satellite and back to earth. ”

“ The different light values of the picture are changed into electric values in light cell 4, and broadcast. A rotating perforated disc, (3) interposed between the lens and light cell, produces a pulsating direct current which can immediately be amplified through the usual radio transformers, on its way to the broadcasting set.
In the radio camera (second illustration) a photographic negative (1) is used and a pencil of light from lamp 2. The rotating plates (3) draw the lines and the radio signals vary the light intensities of the lamp to give gradations of exposure on the negative plate. ”

“ Such system shall be capable of:
(a) communication with other aircraft of the applicant in flight and
(b) satisfactorily receiving radio range signals and weather broadcasts. Such systems shall also include a type certificated audio filter system with suitable switching arrangement to be used in connection with the reception of simultaneous range and voice broadcast if the airway or route to be traversed is equipped with simultaneous type radio range stations. ”

“ In actual practice, programs are transmitted by wire, usually leased telephone lines, from their point of origination to each station in the network for simultaneous broadcast over the air.↑ Station licenses issued by the Commission normally last two years. Section 3.34 of the Commission's Rules and Regulations governing Standard and High-Frequency Broadcast Stations, as amended October 14, 1941.↑ The history of federal regulation of radio communication is summarized in Herring and Gross, Telecommunications (1936) 239-86 ”

“ Telephone system: most highly developed system in the Middle East
although not the largest
domestic: good system of coaxial cable and microwave radio relay
international: 3 submarine cables; satellite earth stations - 3
Intelsat (2 Atlantic Ocean and 1 Indian Ocean)
Radio broadcast stations: AM 9, FM 45, shortwave 0
Radios: 2.25 million (1993 est.)
Television broadcast stations: 20
Televisions: 1.5 million (1993 est.)
Defense ———-
Branches: Israel Defense Forces (includes ground, naval, and air components) , Pioneer Fighting Youth (Nahal) , Frontier Guard, Chen (women) ”

“ Anyway, these terms are not found to have been discussed by the Parliament or parliamentary committee during the consideration of this Act, and there is no judicial decision on these terms yet. ↑ Originally, "and". ↑ Literally, "work of sound transmission, picture transmission" ↑ Although witthayu krachai siang (วิทยุกระจายเสียง) literally translates "sound distributing radio", Samnak-ngan Ratchabandittayasapha (2013) defines the term as "airing of sound signals using radio waves". The term is therefore translated as "radio broadcasting". ”

“ 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. ”

“ Television viewing results from combined activity by broadcasters and viewers. Both play active and indispensable roles in the process; neither is wholly passive. The broadcaster selects and procures the program to be viewed. He may produce it himself, whether 'live' or with film or tape, or he may obtain it from a network or some other source. He then converts the visible images and audible sounds of the program into electronic signals, [19] and broadcasts the signals at radio frequency for public reception. ”

“ Just the same, only in radio telephony we are confronted by a problem not met with in wireless telegraphy. We have not only to transmit sound, such as isolated dots and dashes, but to send through the air every rise and fall and inflection of the human voice just as it is recorded in the minute lines of a phonographic record. ”

“ 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. ”

“ We send sound, music by radio waves across half the world from our broadcasting stations. We send light, pictures, across the world from our television stations. We do that by changing the wave length of the light-vibrations to make them radio vibrations, flashing them out thus over the world, to receivers which alter their wave-lengths again and change them back into light-vibrations. ”

“ An LRS team that can see everything and report nothing is useless. LRSUs normally use high-frequent radios to report information and receive instructions. Because of the complex nature of using the HF radio spectrum, a LRSU radio operator must have an in-depth knowledge of radios, antennas, and radio wave propagation.
D-1. HIGH-FREQUENCY RADIO FUNDAMENTALS For successful communication, HF radio performance depends on the type of emission (voice or burst device) , transmitter power output, and type of antenna. The challenge facing HF radio operators is tremendous. ”

“ 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. ”

“ The radio-telephone does not transmit the human voice. It reproduces near the ears of the listener similar motions of the air molecules and hence causes in the ears of the listener the same sensations of sound as if he were listening directly to the speaker. This reproduction takes place almost instantaneously so great is the speed with which the electrical effects travel outward from the sending antenna. If you wish to understand radio-telephony you must know something of the mechanism by which the voice is produced and something of the peculiar or characteristic properties of voice sounds. ”

“ Radio is certainly getting to be a country-wide craze. Only the other day I was at one of the big broadcasting stations, and the manager told me that they were actually having trouble to get performers, there is such a demand for them. They seem to be especially hard up for novelty acts—something out of the ordinary. ”

“ In that way, a single pair of wires can be used for transmitting, simultaneously and without any interference, several different telephone conversations. It takes very much less power than would radio transmission and the conversations are secret. The ordinary telephone conversation can go on at the same time without any interference with those which are being carried by the modulations in high-frequency currents. ”

“ The lack of know-how and equipment may keep many from the air, but only a tiny fraction of those with resources and intelligence can hope to communicate by radio at the same time if intelligible communication is to be had, even if the entire radio spectrum is utilized in the present state of commercially acceptable technology. ”

“ If you follow directions carefully. And with the new outfit a loop is just as effective an antenna as an outside aerial. They say, too, that to catch broadcasting for not more than twenty-five miles, not even a loop is needed, the circuits themselves acting as the absorbers of energy."
"I'm going to try it," declared Jessie, with more confidence. "But I feel that I understand so little about the various forms of radio, after all."
"You have nothing on me there," laughed the operator. "I am learning something new all the time. ”

“ With this spectacular demonstration he administered the deathblow to all plans for high power ultra-long-wavelength transmitters, and from then on the commercial companies concentrated their efforts on developing equipment for international communications on the short waves.
With present-day electronic news gathering and world-wide satellite links, the problems faced by broadcasting organisations fifty years ago when transmitting programmes which did not originate in a studio were thought to be very complex. ”

“ Nearly all the big wireless companies have great stations fitted with powerful telephone transmitters and at given hours of the day and night they send out songs by popular singers, dance music by jazz orchestras, fashion talks by and for the ladies, agricultural reports, government weather forecasts and other interesting features. Then by simply shifting the slide on your tuning coil you can often tune-in someone who is sending Morse, that is, messages in the dot and dash code, or, perhaps a friend who has a wireless telephone transmitter and is talking. ”

“ When a sub is heard and located, the listeners call the net-layers by radio, and they go to the spot at a thirty-knot speed. As they approach they soon drown out the sound of the sub, but their speed and number enables them to surround the area in which she is known to be, for she won’t have time to go far from where she was last heard. Paying out their nets, they hem her in and keep the ring of nets closed round her till the area is raked with trailing wires and other electromagnetic detectors which will enable the chasers to concentrate their depth charges with the certainty of a kill. ”

“ I say a great deal of the time-many nights a month-and the stations that are connected are of such widely varying meter lengths that the ordinary radio set that reaches out any distance is unable to get anything but that one program, and so, in effect, that one program monopolizes the air. ”

“ I told him about my visitor and the repair job. "What I did was add a modulator-oscillator-power amplifier, and a few feet of wire for an antenna, coiled around inside the case."
"So what does that make it?"
"Simple. It makes it a radio transmitter. Not only will he hear what the horses are saying, but anyone in town with a radio tuned to that frequency will, too."
"And where does that get you?" The sergeant was still puzzled but not bored now. ”

“ By keying the transmitter tube, meters in the receiver tube were made to read in accordance. Then they had another conclave.
"Nothing brilliant," said Jim. "We could use super-output voice amplifiers and yell halfway across the planet if we didn't have radio. We can radio far better than this cockeyed system of signaling." ”

“ Electromechanical protection circuits ensure that a transmitter can only be connected to an antenna that is tuned to the same frequency. The change of antennas and transmitting frequencies is made during the ten-minute interval between programmes, which always begin on the hour, preceded by the now familiar signature tune of a shepherd playing his flute with the tinkling of sheep-bells in the background, recorded in 1936, followed by the Greek National Anthem. ”

“ 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 parlor was red in the fading light, and the hall beyond the sliding doors was deeply shadowed. In the sewing room, he remembered, in the drawers of the treadle machine the radio was captured. The rings and secret manuals of the days when radio had been alive. ”

“ Audio radio engineers have been working in the very limited audio-frequency band below, say, ten thousand cycles, whereas the workable range where light instead of sound is employed goes away up to millions of cycles. It is confidently predicted that the next great development in radio is in this area. ”

“ 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. ”