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100 Years of Radio., Proceedings of the 1995 International Conference on

Date 5-7 Sep 1995

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Displaying Results 1 - 25 of 43
  • 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 (6)  |  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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  • Developments in terrestrial and satellite radio systems for biological tracking and location studies

    Publication Year: 1995, Page(s):246 - 249
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (324 KB)

    The aim of this paper is to describe some of the developments in radio technology which have been applied to transmitters suitable for terrestrial and satellite tracking studies of animals ranging from arctic polar bears to small birds of prey and fish. The design of radio location and tracking systems depends on available frequencies, transmitter powers and antennas. For terrestrial tracking appl... 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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  • 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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  • 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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  • 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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  • List of Authors

    Publication Year: 1995
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (40 KB)

    First Page of the Article
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  • The era of the home wireless constructor

    Publication Year: 1995, Page(s):114 - 119
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (624 KB)

    Discusses the history of home wireless construction, covering a time period, from before World War I, up to World War II. The topics covered include: the crystal set era; home construction; wireless magazines; equipment; and wireless entertainment in the home 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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  • 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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  • 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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  • Half-century of radio probing of the ionosphere

    Publication Year: 1995, Page(s):231 - 234
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (424 KB)

    The history of ground-based vertical-incidence sounding of the ionosphere is outlined. The ionosonde network serves for the patrol of the quiet or disturbed state of the ionosphere. Duration of the ionosphere F region peak parameters disturbance is compared with total electron content quiet times and sudden ionospheric disturbances detected by radio signal deterioration View full abstract»

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  • History of tuning

    Publication Year: 1995, Page(s):107 - 113
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (524 KB)

    The paper summarises many of the important developments that have taken place in the tuning of radio apparatus, starting with the early work of Oliver Lodge and Guigliemo Marconi. Over the years improvements have been made both to tuning capacitors and tuning coils. Amongst these were the development of air-spaced, vane-type capacitors and of magnetic cored materials for tuning coils, notably iron... View full abstract»

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  • Oliver Lodge and the origins of spark transmission

    Publication Year: 1995, Page(s):7 - 13
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (652 KB)

    The origins of radio are intimately bound up with the use of sparks for generating electromagnetic waves. This has important implications for the forms of early transmitters and receivers. At the beginning of the era it was not known whether such waves existed, how to generate them or how to detect them. The advances achieved were very much the product of complementary developments along all three... View full abstract»

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  • Launching DAB: a BBC perspective

    Publication Year: 1995, Page(s):187 - 192
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (580 KB)

    It is highly appropriate that a year which marks the centenary of Marconi's first successful radio experiments should also mark the start of another very significant step in the history of broadcasting, the launch of the BBC's introductory DAB service and of pre-operational services in other European countries. The paper describes the BBC's approach to it, both the technical and the service/progra... 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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  • The development of the domestic radio receiver

    Publication Year: 1995, Page(s):128 - 133
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1104 KB)

    The domestic `wireless set' was the earliest item of electronic equipment to enter the home. Although clumsy and primitive by modern standards, these sets were in effect the test beds upon which much of todays giant electronic industry is based. The period covered will be from the early 1920s when the first sets were sold to the public, to the end of the valve radio era in the late 1950s. Since th... View full abstract»

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  • The development of shortwave radio telecommunications in the 1920's and 30's

    Publication Year: 1995, Page(s):147 - 152
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (484 KB)

    The author begins by discussing wireless communication in the early 1920s. The imperial wireless system is then considered as is the discovery of shortwaves, the shortwave beam system, transatlantic telephony, shortwave radio telephony and the regulation of the radio spectrum 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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  • ELF radio

    Publication Year: 1995, Page(s):101 - 106
    Cited by:  Papers (1)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (756 KB)

    We give a brief overview of the various phenomena which may he observed in the ELF (extremely low frequency: 3 Hz to 3 kHz) spectral region, terrestrial ELF propagation theory, and discuss applications which make use of the unique characteristics of ELF propagation. The paper is addressed to a non-specialist audience. Our aim is to present a concise summary of the history of ELF to date and to ide... 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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  • 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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  • 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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  • The Alexanderson alternator, a “near perfect” system of W/T transmission

    Publication Year: 1995, Page(s):69 - 70
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (180 KB)

    In 1903, Steinmetz built a 1 kW 10 kHz alternator which was used by Fessenden in experiments with wireless telephony, and in 1904 he placed an order with the General Electric Company (USA) to design and build an alternator capable of operating at a frequency of 100 kHz. General Electric handed the order to Alexanderson to design. Alexanderson tested special Swedish iron strips 1.5 mills thick in s... 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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