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Radio and Electronic Engineer

Issue 1 • 1967

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Displaying Results 1 - 12 of 12
  • The presidential address

    Publication Year: 1967, Page(s):1 - 8
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1250 KB)

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  • Synthesis of RߝC zero sections

    Publication Year: 1967
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (692 KB)

    A passive R-C synthesis is presented for transfer functions containing complex or imaginary zeros in the left half of the p-plane. The poles of the function are required to be negative real. The synthesis procedure is extremely simple and requires very little computation. The networks described and realized are basically twin-T structures which can contain a load, series source impedance or a brid... View full abstract»

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  • An investigation into marine radar reliability

    Publication Year: 1967, Page(s):17 - 23
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (737 KB)

    An interim report is given of a survey undertaken during 1963¿64 on the failures encountered during a six-month period in 1000 sea-going marine radars of sixty-five different types View full abstract»

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  • The application of A.G.R.E.E. principles to commercial marine radar

    Publication Year: 1967, Page(s):24 - 26
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (398 KB)

    Reliability is probably the most important single factor in marine radar today. Improved components and the introduction of solidstate devices have radically improved the prospects of achieving high reliability, but more comprehensive control of quality, particularly under extremes of environmental conditions, is necessary during design and throughout production. This paper describes how the princ... View full abstract»

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  • Radar reliability on trawlers

    Publication Year: 1967, Page(s):27 - 30
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (408 KB)

    Records of reliability and maintenance of radar equipment on a specified group of ships (deep-sea trawlers) operating from a specified port under controlled conditions are presented. The reasons for the very long `mean-time-between-failures¿ under these conditions are considered to be: (a) the equipment is not switched on and off but allowed to run for a long time; (b) the operators have been giv... View full abstract»

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  • The attainment of high reliability of marine radar

    Publication Year: 1967, Page(s):31 - 34
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (541 KB)

    The paper comments on the general requirements which should be met by designers of marine radar equipments. It suggests that in planning a new design the minimum standard of reliability that should be set is 500 hours mean time between failures. Some basic design precautions are then described covering various aspects of the problem from initial design and selection of components to installation, ... View full abstract»

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  • Discussion on the reliability of marine radar equipment

    Publication Year: 1967, Page(s):34 - 36
    IEEE is not the copyright holder of this material | PDF file iconPDF (417 KB)
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  • I.L.S. far-field and radio environment monitoring

    Publication Year: 1967, Page(s):37 - 44
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (726 KB)

    Experimental investigations into the techniques of far-field ocalizer and glide-path monitoring for Category III I.L.S. installations are described. The results of monitoring at an operational airport over an extended period are presented. Two novel techniques are briefly described: (a) a system of spaced aerials for monitoring beam-bend noise, and (b) an independent side-band receiver for the det... View full abstract»

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  • I.L.S. transmitter monitors for automatic blind landing

    Publication Year: 1967, Page(s):45 - 50
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (623 KB)

    The safety requirements of an automatic blind landing system imply that the ground I.L.S. transmitters must have a high `integrity¿, a high degree of accuracy and reliability. This, in turn, implies that there must be monitors at the transmitters which can measure the main parameters of the radiated signal and react fast to any fault condition. Two types of monitor are available, near-field monit... View full abstract»

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  • Discussion on "Monitoring of I.L.S. ground equipment for automatic landing"

    Publication Year: 1967, Page(s):51 - 54
    IEEE is not the copyright holder of this material | PDF file iconPDF (591 KB)
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  • A design basis for synchronously tuned multi-stage linear amplifiers taking into account spread in device parameters

    Publication Year: 1967, Page(s):55 - 64
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1044 KB)

    A generalized design procedure is presented for the stage by stage build-up of synchronously tuned multi-stage linear amplifiers. The individual stages herein may be near identical and either unilateralized by external passive feedback or mismatched resistively at their ports. The design can be usefully based on the average parameters of the device type selected and its circuit components. This is... View full abstract»

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  • SECARߞa modern secondary surveillance radar ground interrogator and decoding equipment

    Publication Year: 1967, Page(s):65 - 80
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2659 KB)

    It is shown that there was a need to develop an equipment with special characteristics to meet the requirements of the current admixture of sidelobe suppression standards. Various configurations of interrogator are discussed and that adopted in the SECAR design is described in detail. The concept of 'system beamwidth' is introduced and discussed in relation to aerial design. Some of the design pro... View full abstract»

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