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Proceedings of the 1995 International Conference on 100 Years of Radio

5-7 Sep 1995

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Displaying Results 1 - 25 of 43
  • Beating the noise

    Publication Year: 1995, Page(s):177 - 183
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (640 KB)

    Noise adversely affects a radio system's performance. It can be naturally occurring or man-made and sometimes intentionally introduced as jamming. Good engineering practice based on 100 years of research and development can reduce noise and its effects to manageable levels, but there are some fundamental limits. “Know your enemy” has always been a good maxim and this paper looks at som... View full abstract»

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  • Fessenden and Marconi: their differing technologies and transatlantic experiments during the first decade of this century

    Publication Year: 1995, Page(s):32 - 43
    Cited by:  Papers (8)  |  Patents (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1948 KB)

    Discusses the origin of transatlantic radio communication in the LF band. The paper considers the differing antenna, transmitter and receiver technology available. The first transatlantic experiment is then described in detail. the author goes on to consider the first radiowave propagation experiments and verifiable transatlantic radio communications View full abstract»

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  • Frequency control in radio-from quartz to direct digital synthesis

    Publication Year: 1995, Page(s):167 - 176
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (748 KB)

    Discusses the historical evolution of frequency control in radio communications. The author begins by considering the requirement of frequency control, and then goes on to consider phase noise, oscillators, the variable frequency oscillator, oscillators using quartz, the mixer synthesiser, the PLL frequency synthesiser and direct digital synthesis View full abstract»

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  • Wide-band high frequency signals from Poldhu? The propagating spectrum and terminal equipment revisited

    Publication Year: 1995, Page(s):26 - 31
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (468 KB)

    In 1901 Marconi attempted to transmit radio signals across the Atlantic Ocean. The most powerful spark transmitter ever built was operated at Poldhu in Cornwall. While on Signal Hill in St. John's, Newfoundland, at about midday, Marconi listened for Poldhu with the very simplest untuned receiver. It is therefore hardly surprising that his claim to have heard the famous Morse code “S” s... View full abstract»

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  • History and evolution of the journal Radio Science and its predecessors

    Publication Year: 1995, Page(s):223 - 226
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (376 KB)

    The international journal Radio Science is published in the USA by the American Geophysical Union (AGU) and co-sponsored by the International Union of Radio Science (URSI). Radio Science welcomes original scientific/engineering contributions on all aspects of electromagnetic phenomena related to physical problems, including the propagation through and interaction of EM waves with geophysical media... View full abstract»

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  • Radio in the utilities industry

    Publication Year: 1995, Page(s):161 - 166
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (564 KB)

    Whilst the history of the utility industry's involvement in radio communications does not stretch back 100 years, it does date back for nearly half that. In that time the utility industry has been a champion and pioneer of many significant developments in the use of radio. Radio has been and is essential to the industry, and it is inconceivable that the industry could now survive without it. The i... View full abstract»

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  • Marconi's Irish connections recalled

    Publication Year: 1995, Page(s):20 - 25
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1024 KB)

    The author discusses the life of Marconi from 1894 in Bologna, Italy, through his first commercial break in 1898 in Ireland to the commencement of broadcasting in 1923. His work at Crookhaven, Clifden and Letterfrack are considered View full abstract»

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  • History and trends in international radio regulation

    Publication Year: 1995, Page(s):141 - 146
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (644 KB)

    International radio regulation concerns protection from interference, and sharing of the radio frequency spectrum as a resource. The author reviews the early history of radio regulation, its evolution with terrestrial and space radiocommunication, and trends View full abstract»

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  • The initial stage of study of ionospheric radio and propagation in Russia (1895-1940)

    Publication Year: 1995, Page(s):221 - 222
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (248 KB)

    Reviews the development of radiowave propagation research in Russia. The action of the first radio set in Russia was demonstrated by A.S. Popov (1895) Chernischov (1916) was the first in Russia to recognize the role of the high conducting layers of the atmosphere in radio propagation. Later on, Schuleikin (1923) described a study of a radio refraction in the Earth's atmosphere. He found the equati... View full abstract»

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  • Twenty years of international satellite communication

    Publication Year: 1995, Page(s):239 - 245
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (708 KB)

    We begin with a brief historical recount of the events leading up to the establishment of INTELSAT and the subsequent growth of that system. We then review the main technical developments that were necessary to establish reliable international satellite communication services. These were spurred, for the most part, by the need to establish a global system and by the quest for increased capacity. W... View full abstract»

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  • Dawn in radio technology in Japan

    Publication Year: 1995, Page(s):51 - 56
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1500 KB)

    The history of telecommunications in Japan is traced back to 1854. The public telegraphic service was inaugurated in 1869 between Tokyo and Yokohama just after the birth of Meiji government. Since the establishment of communication networks was thought to be urgent to build a modern nation, it was decided by the new government to import all materials and equipment and to invite foreign engineers. ... View full abstract»

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  • VHF communications at RAE 1937-1942

    Publication Year: 1995, Page(s):153 - 160
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (644 KB)

    Discusses the role of the Royal Aircraft Establishment during the Second World War years. In particular, the author considers the ground transmitter T1131, ground receiver R1132, aerials, and the airborne transmitter-receiver TR1133 View full abstract»

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  • 50 years of radio scintillation observations

    Publication Year: 1995, Page(s):95 - 100
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (536 KB)

    The author attempts a brief summary of the history of ionospheric fading from sources beyond the upper atmosphere. The first sources used were discrete radio stars. With the advent of satellite transmissions at altitudes varying from 300 km to several Earth radii, various areas of the globe were studied. In years of high solar flux, observations from polar and equatorial regions will experience de... View full abstract»

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  • The birth pains of radio

    Publication Year: 1995, Page(s):14 - 19
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (764 KB)

    The author discusses the origins of radio communication in the late 1800s. The motivation for its development is considered as are early experiments by various people View full abstract»

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  • Trends in antenna design over 100 years

    Publication Year: 1995, Page(s):83 - 88
    Cited by:  Papers (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (584 KB)

    Antennas are an essential part of every radio system and they have been in use for more than 100 years. The continual growth of radio has steadily increased the types of antennas in use. Hertz used reflector antennas and loops in his classic experiments in the 1880s. Other pioneers, such as Lodge, developed early examples of microwave horns and lenses. The simple monopole wire antenna was crucial ... View full abstract»

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  • Eddystone Radio-a short history of receiver developments from 1965-1995

    Publication Year: 1995, Page(s):134 - 140
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (824 KB)

    This paper will concentrate on radio communications receivers. These are normally intended for professional use in maritime, aeronautical and signal monitoring services, principally in the range 10 kHz to 30 MHz. However, they are also used by radio amateurs in conjunction with a separate transmitter and by radio hobbyists for general listening. In 1965 the communications receiver was still basica... View full abstract»

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  • What use is the history of radio?

    Publication Year: 1995, Page(s):217 - 220
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (476 KB)

    It has been reasoned that, when coupled to the basic discovery of electromagnetic radiation, the evolution of radio is one of the great achievements of human endeavour. The authors discuss the educational aspects of radio, the creation of museums for radio relics, the prediction of the future of radio itself, using the historical record, and an extrapolation from radio evolution to other technolog... View full abstract»

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  • Thomas Lydwell Eckersley FRS-a radio engineer par excellence

    Publication Year: 1995, Page(s):235 - 238
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (240 KB)

    The author discusses Thomas Lydwell Eckersley, a radio engineer whose mathematical and practical contributions to the subject far outweigh most other contributions over the last century View full abstract»

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  • The Heinrich Hertz wireless experiments at Karlsruhe in the view of modern communication

    Publication Year: 1995, Page(s):1 - 6
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1068 KB)

    Highlights the contributions of Heinrich Hertz by his experiments, carried out in Karlsruhe, Germany, in the years 1885 to 1889, to the first radio communication experiments. Heinrich Hertz developed for the first time a complete pulsed radar, an indoor communication link and a material test set, all in one. The basic system components had been the spark gap oscillator, the dipole antennas for tra... View full abstract»

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  • A re-appraisal of the Goldschmidt generator

    Publication Year: 1995, Page(s):71 - 75
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (432 KB)

    The early wireless telegraphy transmitters were based on the generation of trains of high frequency oscillations produced by sparks. In the Goldschmidt alternator, an ingenious combination of a standard machine plus external static components generate a series of currents of increasing frequency in low impedance paths. In this alternator the principle of operation does not depend necessarily on th... View full abstract»

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  • Amateur radio: past, present and future

    Publication Year: 1995, Page(s):120 - 127
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (940 KB)

    Amateur radio is a hobby that encompasses the whole range of communications technology. It has existed since the time Marconi, Hertz and others began their experiments. It is the only hobby that is regulated by the government of every country in the world. To obtain their operating licenses, amateurs are required to pass a written examination in radio regulations and fundamentals of radio technolo... View full abstract»

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  • Radio communication via the Moon

    Publication Year: 1995, Page(s):207 - 212
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (420 KB)

    Radio reflections from the Moon were first detected (in the United States and Hungary) in 1946 using VHF radar constructed from military radar equipment. These and subsequent observations at HF (in Australia) and VHF (in England) revealed that the echoes were subject to both rapid and slow fading. By 1954 it had been established, by means of experiments at Jodrell Bank, that the slow fading was ca... View full abstract»

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  • Pulse code modulation: invented for microwaves, used everywhere

    Publication Year: 1995, Page(s):184 - 186
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (316 KB)

    The inventor of PCM, Alec H. Reeves, was seeking a modulation technique which could match the capabilities, and the limitations, of the newly-developed microwave channels. By a deep irony of technological history, PCM in its basic form turned out to be ill-adapted to the microwave channels which emerged from pioneer investigations into practical use. It was first employed in line communication, an... View full abstract»

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  • Wireless in the Boer War

    Publication Year: 1995, Page(s):44 - 50
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1096 KB)

    The Boer War in South Africa (1899-1902) was the first occasion in which wireless communications were used in a military conflict. The paper traces the history from the point of view of both the British and the Boer forces: both of whom had intentions to use this latest invention on the field of battle. Marconi's apparatus, in its most elementary form, went with the British Army to the front, but ... View full abstract»

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  • The development of HCJB World Radio from 1931 to 1995

    Publication Year: 1995, Page(s):227 - 230
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (432 KB)

    Discusses the development of HCJB World Radio, the world's first missionary radio station, from its beginnings in Ecuador in 1931 up to the present day. The station has mushroomed over the last 64 years and has developed into an organisation today with listeners from 140 countries around the world. In 1933 the fledgling station was airing programmes for four hours daily in Spanish and English. Tod... View full abstract»

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