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Radio and Electronic Engineer

Issue 2 • Date February 1983

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Displaying Results 1 - 11 of 11
  • Co-operation between institutions

    Publication Year: 1983
    Save to Project icon | PDF file iconPDF (136 KB)  
    Freely Available from IEEE
  • What is EUREL?

    Publication Year: 1983 , Page(s): 45 - 46
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    Freely Available from IEEE
  • Simple precision technique for glass fibre coupling

    Publication Year: 1983 , Page(s): 52 - 53
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  • New concept in fibre optic connectors

    Publication Year: 1983
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  • New UK standard connector for fibre-optic

    Publication Year: 1983
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  • Fibre-optic measurement system

    Publication Year: 1983 , Page(s): 53 - 54
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  • Some comparisons of digital and analogue audio recording

    Publication Year: 1983 , Page(s): 55 - 62
    Cited by:  Papers (2)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (1526 KB)  

    The purpose of this paper is partly tutorial, partly interrogative and partly speculative, the objective in each case being to provoke critical thought. Doubt is cast on common presumptions about the superiority of digital audio, and it is suggested that the most relevant properties have not been sufficiently well identified or evaluated. It is concluded that, so far, digital recording has at best... View full abstract»

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  • Optimization of low-frequency properties of eight-to-fourteen modulation

    Publication Year: 1983 , Page(s): 63 - 66
    Cited by:  Papers (5)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (669 KB)  

    A description is given of the eight to fourteen modulation system (EFM) designed for the Compact Disc Digital Audio System with optical read-out. EFM combines high information density and immunity to tolerances in the light path with low power at the low-frequency end of the modulation bit stream spectrum. In this modulation scheme, blocks of eight data input bits are transformed into fourteen cha... View full abstract»

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  • The synthesis of combinatorial logic functions using ULM 3 universal circuit elements

    Publication Year: 1983 , Page(s): 67 - 74
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (971 KB)  

    This paper briefly considers existing information on universallogic- modules which may be used for the realization of functions of n¿3 independent input variables (`ULM.3¿), and their circuit realizations, and selects two candidates, f4 and f5, as preferable choices for practical adoption. The synthesis of arbitrary n-variable functions using these candidates is then pursued, including the utili... View full abstract»

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  • Prediction of field strengths near h.f. transmitters

    Publication Year: 1983 , Page(s): 75 - 80
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (748 KB)  

    The types of antenna array commonly used in the UK in conjunction with high-power h.f. transmitters and their principles of operation are outlined. Methods of predicting field strengths and power densities in both the near and far fields of such arrays are discussed. Particular reference is made to curtain arrays, log-periodic antennas, and rhombic antennas. Typical field strength patterns are ill... View full abstract»

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  • High-density digital recording using karlquist and thin-film heads

    Publication Year: 1983 , Page(s): 81 - 87
    Cited by:  Papers (1)
    Save to Project icon | Click to expandAbstract | PDF file iconPDF (810 KB)  

    Linear superposition based on simple theory suggests that the improvement in linear bit density for the thin-film head is about 25% over its Karlquist counterpart. Dynamic iterative simulation via the Extended Dynamic Iterative Model (EDIM) concluded that a finite pole-width head is excellent for writing but poor as a read head due to limited low-frequency response,and the previous superposition p... View full abstract»

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