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Radio and Electronic Engineer

Issue 7 • Date July 1982

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Displaying Results 1 - 6 of 6
  • Television Systems for DBS

    Publication Year: 1982, Page(s):311 - 313
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (248 KB)

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  • A reappraisal of h.f. receiver selectivity

    Publication Year: 1982, Page(s):315 - 320
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (787 KB)

    H.f. communication receivers have progressed towards a high level of sophistication yet a high percentage of reception failures are still due to limitations within the receiver. This paper considers the role of frequency selectivity for an ideal receiver and proposes a costeffective approach which should noticeably reduce reception failure. View full abstract»

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  • An improved 'piccolo' m.f.s.k. modem for h.f telegraphy

    Publication Year: 1982, Page(s):321 - 330
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1446 KB)

    The Piccolo system of multi-frequency signalling has been in operation on the h.f. telegraphy network of the UK Foreign and Commonwealth Office for almost 20 years and has proved extremely effective. A new generation equipment has now been designed which is smaller, more reliable and more flexible than previous models, and incorporates a number of parameter changes and additional facilities sugges... View full abstract»

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  • How complex a learning curve model need we use?

    Publication Year: 1982, Page(s):331 - 338
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (1058 KB)

    In using learning curves for management control in a typical industrial environment, we seek to identify a number of patterns in the basic data, each of which is an important source of information to be fed into the decision-making machinery. These patterns may beclassified as follows: (a) A trend-line, which in some `best¿ sense, can be used for predicting future output. This trend-line can be i... View full abstract»

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  • Book review: The Kingdom of Sand: Essays to Salute a World in Process of being Born

    Publication Year: 1982
    IEEE is not the copyright holder of this material | PDF file iconPDF (162 KB)
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  • A simple model of longitudinal digital magnetic recording

    Publication Year: 1982, Page(s):339 - 357
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (2162 KB)

    A two-dimensional theoretical distribution with many of the features observed on a 5000 :1 model is developed and the field external to the medium linking the replay head is shown to be equivalent to the field from a filamentary pole parallel to the medium surface and transverse to the track direction located at the centre of each transition. Each transition is described by s pole strength per uni... View full abstract»

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