1 1 Electronic aids to Navigation

2 2 Preface

3 3 Contents

4 4 (1) Sonar navigation

5 5 (2) Speed measurement

6 6 (3) Decca navigator

7 7 (4) Loran-C

8 8 (5) Omega

9 9 (6) Navigation by satellite

10 10 (7) Integrated navigation systems

11 11 (8) The ship compass

12 12 (9) Automatic steering

13 13 (10) Radio direction finding

14 14 (11) Global maritime distress and safety system (GMDSS)

15 15 (12) The NAVTEX system

16 16 Appendix 1 Radio waves, propagtion and ionosphere

17 17 Appendix 2 Doppler effect

18 18 Appendix 3 Zilog z80 terminology

19 19 Index