By S.S. Swords
The publication units out to give an explanation for the fundamental ideas of radar and, the place acceptable, historic features of the evolution of those rules are handled. The examine, whereas underlining the importance of the hollow space magnetron, purposely restricts itself to the pre-cavity magnetron period of radar.
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The establishment of Engineering and expertise is without doubt one of the world's prime expert societies for the engineering and expertise group. The IET publishes greater than a hundred new titles each year; a wealthy mixture of books, journals and magazines with a again catalogue of greater than 350 books in 18 diversified topic parts together with:
-Power & Energy
-Radar, Sonar & Navigation
-History of Technology
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Additional info for Technical History of the Beginnings of Radar (Radar, Sonar, Navigation and Avionics)
BIRD, G. J. : 'Communication networks Vol. IF (John Wiley, New York, 1935), p. : The radio engineering handbook' (McGraw-Hill, New York, 1941), p. 723 An interview with Dr Robert Morris Page, 26th and 27th October, 1978. Conducted by Dr David K. Allison, Historian, Naval Research Laboratory. , 1934, 13, pp. : 'Evolution of naval radio-electronics and contribution of the naval research laboratory', NRL Report 8300, Naval Research Laboratory, Washington DC, 1979 An interview with Dr Edward G. Bowen.
13), with a ground interrogator transmitting on a nominal frequency of 1030 MHz and air-to-ground reply from a transponder on a nominal frequency of 1090 MHz. The system is independent of any primary radars being used, although it may be co-located with one and share a common antenna turning gear and mounting. The military side of secondary radar includes the use of transponders on naval vessels, and, indeed, the fitting of interrogators on missile launchers or other low-level air-defence systems.
1. range type *Bf type f 30 miles. range! -30° -^— -90° Fig. 11 azimuth 0° — • +90° -90° azimuth 0° +90° Common types of display Credit for precedence in the development of the PPI goes to E. G. Bowen [45-47]. The suggestion for PPI appears to have been made by him in the autumn of 1935 when the question of direction finding within the proposed British ground-radar system was being discussed. Whereas R. A. WatsonWatt and A. F. Wilkins advocated the floodlighting concept for radar, Bowen then favoured a rotating beam system from which a PPI type of display would naturally follow.
Technical History of the Beginnings of Radar (Radar, Sonar, Navigation and Avionics) by S.S. Swords