CONTENTS

Policy on Intellectual Property Right (IPR)
 1 Introduction
 2 Related ITU‑R Recommendations, Reports and Handbooks
 3 Abbreviations
 4 Background
 5 Ground-wave and skywave propagation studies
        5.1 Introduction
        5.2 Background: Ground-wave propagation
                  5.2.1 Ground-wave field-strength calculations
                  5.2.2 Transmit antennas
                  5.2.3 Summary of parameters for ground-wave study
                  5.2.4 Ground-wave simulations
                  5.2.5     Ground-wave propagation discussion
                  5.2.6 Ground-wave propagation conclusions
        5.3 Background: Skywave propagation
                  5.3.1 Skywave field-strength calculations
                  5.3.2 Solar activity/geomagnetic latitude L_r
                  5.3.3 Excess polarization coupling loss L_p
                  5.3.4 Hourly loss factor L_t
                  5.3.5 Slant propagation distance p
                  5.3.6 Ionospheric loss factor L_a
                  5.3.7 Ground losses/sea gain G_s
                  5.3.8 Skywave calculations
                  5.3.9     Skywave propagation summary
        5.4 Discussion of results of ground-wave and skywave studies
        5.5 Conclusions for ground-wave and skywave propagation
 6 Aeronautical radionavigation service
        6.1 Aeronautical non-directional beacons
                  6.1.1 Background
                  6.1.2 Analysis
                  6.1.3     Conclusion – Co-frequency coexistence
        6.2 General analysis of protection of NDB/ADF systems
                  6.2.1 Amateur station transmitting at the edge or within the NDB service region
                  6.2.2 Amateur station transmitting far outside of NDB service region
                  6.2.3 Generation of NDB protection distances using ground-wave and skywave propagation analysis
                  6.2.4 Example of typical protection zone areas
                  6.2.5 European assignments to NDBs in the frequency range from 200 kHz to 1 000 kHz
                  6.2.6 Conclusion
 7 Maritime mobile service
        7.1 NAVTEX
                  7.1.1 Characteristics of NAVTEX system
                  7.1.2 NAVTEX protection criteria
                  7.1.3 Selectivity of a NAVTEX receiver
                  7.1.4 Analysis
                  7.1.5 Results of calculations for different protection criteria
                  7.1.6 Selectivity curve data
                  7.1.7 IMO NAVTEX Manual requirements
                  7.1.8 Conclusion
        7.2 Future maritime systems
                  7.2.1 Characteristics of future maritime systems
                  7.2.2 Analysis
                  7.2.3 Conclusions
 8 Broadcasting service
        8.1 Background
        8.2 Analysis
        8.3 Conclusion
 9 Land mobile service
10 Aeronautical mobile service