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Radio and Electronic Engineer

Issue 5 • Date November 1966

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Displaying Results 1 - 7 of 7
  • European unity of engineers

    Publication Year: 1966
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (255 KB)  

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  • Some design aspects of an industrial telemetry and telecontrol system

    Publication Year: 1966 , Page(s): 267 - 279
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1929 KB)  

    The overall design philosophy of an industrial telemetry and telecontrol system is approached in a general manner, and its leading characteristics are deduced. The constituent parts of such a system are then examined in some detail. Particular attention is paid to the practical communication aspects of the system, and to the logic circuits which could be employed in its construction. The enunciate... View full abstract»

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  • Trajectory of the operating point in a binary circuit using one tunnel diode

    Publication Year: 1966 , Page(s): 281 - 286
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (605 KB)  

    The working principle of a simple binary circuit employing one tunnel diode is explained qualitatively using the trajectory of the operating point during its to and fro motion between the two stable states of equilibrium by the application of rectangular current pulses of either polarity. Trajectories in either case were constructed by the graphical method using the principle of Ussui. View full abstract»

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  • I.L.S. monitoringߝa statement of the problem

    Publication Year: 1966 , Page(s): 287 - 292
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (771 KB)  

    A brief description of the Instrument Landing System is followed by a detailed survey of its specific vulnerabilities to various forms of interference and the conclusion is drawn that, if I.L.S. is to be used as the guidance component of an automatic landing system for all-weather operations, an effective monitoring system must be provided. View full abstract»

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  • The character of the received I.L.S. signal and its relation to monitoring

    Publication Year: 1966 , Page(s): 293 - 311
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (3068 KB)  

    The paper reports an investigation of the general problem of radio propagation influences on the performance of the azimuth channel of the conventional Instrument Landing System. The main text is an attempt to define the characteristics of I.L.S. signals that are more directly relevant to monitor design. To support the theoretical studies a localizer was installed at a disused airfield and the azi... View full abstract»

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  • An investigation of propagation phase changes at v.l.f.

    Publication Year: 1966 , Page(s): 313 - 322
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (984 KB)  

    The phase of a received very-low-frequency signal, recorded as a function of time, has been utilized to investigate (a) the frequency off-set between two remotely located atomic frequency standards and (6) the variations of the diurnal phase shift¿ which is a characteristic of the phase comparison records. A comparison of the precision obtained in the measurement of the frequency off-set by using... View full abstract»

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  • A multi-channel synchronization monitor for triggered spark-gap switches

    Publication Year: 1966 , Page(s): 323 - 326
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1219 KB)  

    When a large number of triggered spark-gap switches are used in parallel, as in many thermonuclear fusion experiments, it is essential to detect when one fires late. A further requirement is that any spark-gap which breaks down spontaneously will be indicated, even if other gaps fire in consequence. Both functions are performed by the 40-channel equipment described, lamp indication being used for ... View full abstract»

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