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Radio and Electronic Engineer

Issue 5 • Date May 1969

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Displaying Results 1 - 12 of 12
  • Why hold conferences?

    Publication Year: 1969
    IEEE is not the copyright holder of this material | PDF file iconPDF (131 KB)
    Freely Available from IEEE
  • Global communications: current techniques and future trends

    Publication Year: 1969, Page(s):259 - 286
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (3370 KB)

    The current demand trends for telecommunications are surveyed. The principal technical parameters of systems and equipments are reviewed. The discussion covers bearer systems and the exploitation of systems. Some likely future trends are suggested. View full abstract»

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  • Points from the discussion on "Global communications: current techniques and future trends"

    Publication Year: 1969
    IEEE is not the copyright holder of this material | PDF file iconPDF (135 KB)
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  • Commonwealth Telecommunications Conference

    Publication Year: 1969
    IEEE is not the copyright holder of this material | PDF file iconPDF (135 KB)
    Freely Available from IEEE
  • Telecommunications services in the United Kingdom

    Publication Year: 1969, Page(s):289 - 296
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1213 KB)

    The U.K. telecommunications system has been built up over many years and now forms a very extensive network. Broadband links on coaxial cable and microwave radio systems interconnect more than 150 towns and cities and by 1971 the total wide-band capacity is planned to exceed 170,000 MHz-miles of both-way transmission plant linking some 270 towns and cities. In the junction network the application ... View full abstract»

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  • Points from the discussion on "Telecommunications services in the United Kingdom"

    Publication Year: 1969, Page(s):296 - 297
    IEEE is not the copyright holder of this material | PDF file iconPDF (287 KB)
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  • Of current interest

    Publication Year: 1969
    IEEE is not the copyright holder of this material | PDF file iconPDF (157 KB)
    Freely Available from IEEE
  • Contrast and brightness control in colour television picture monitors

    Publication Year: 1969, Page(s):299 - 302
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (402 KB)

    The three guns of the colour-picture tube are fed through d.c. controlled amplifiers. The potentials which control gain and d.c. level are themselves controlled by error signals derived from the video signal at black and white levels. Elaborate and expensive ganged controls are not needed. View full abstract»

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  • The bipolar transistor as a voltage-operated device

    Publication Year: 1969, Page(s):303 - 304
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (398 KB)

    It is often advisable to operate bipolar transistors under voltage-driven conditions in order to take advantage of the predictability of the transconductance at any specified operating current. View full abstract»

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  • Single-balanced modulators using square-law resistors (s.c.l. diodes)

    Publication Year: 1969, Page(s):305 - 314
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (753 KB)

    The potentially low-noise properties and accurate square-law characteristic of the square-law resistor suggest applications in modulating circuits in which large dynamic range and signal-handling capabilities are required. In this paper, the conversion losses of a number of singlebalanced modulators are evaluated, each circuit possessing source and load terminations which are either resistive or, ... View full abstract»

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  • Cross-correlation techniques and their application to communication channel evaluation

    Publication Year: 1969, Page(s):315 - 319
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (570 KB)

    Cross-correlation methods for determining the time domain response of systems are finding increasing use in the communications field. This paper discusses the adapting of these techniques to communication channel testing. Present-day solid-state devices enable compactand economical test equipment to be constructed. The immunity of the method to noise and interference suggest that `on-line¿ testin... View full abstract»

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  • Radio engineering overseas

    Publication Year: 1969
    IEEE is not the copyright holder of this material | PDF file iconPDF (168 KB)
    Freely Available from IEEE