LIST OF FIGURES 



Page 



Position Fix Geometry 12 



System Geometry 14 



Radio Fix Illustrating Basic Hyperbola Radio Navigation 



Principle 16 



Angle Measuring System Geometry 17 



Ground-Wave Propagation 19 



Sky -Wave Propagation With Reflection from F Layer 20 



Average Sky-Wave Transmission Ranges 24 



Maximum Range at Which Ground -Wave Transmission is 



Essentially Free from Sky-Wave Interference 24 



III-9 Line of Position Geometry 26 



III -10 The Minimum Errors of Fix Attainable by Three Standard 



Measuring Techniques 29 



IV-1 Areas Covered by the Consol Stations Bushmills, Stavanger, 



Lugo, and Seville 36 



IV -2 Polar Diagram of Antenna System at Beginning of Sweep 37 



IV -3 1 kw Consol Field -Strength Characteristic at F = 300 kc 40 



IV -4 Decca Navigator Chains in Europe (May 1961) Quasi - 

 Maximum 95% Random Fixing Errors at Sea Level in 



Nautical Miles 50 



IV -5 Canadian Decca Navigator Coverage (when Quebec Chain 



ResidedinArea of Anticosti Island) Fixing Accuracy Contours 



95% Probability Level 51 



Figure 



No. 



III-l 



III -2 



III -3 



III -4 



III -5 



III -6 



III -7 



III -8 



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