CONTENTS

Policy on Intellectual Property Right (IPR)
Annex 1� Introduction
�1���� The propagation curves
�2���� Maximum field strengths
�3���� Computer-based tabulations
�4���� Step-by-step method
�5���� Designation of antennas
�6���� Transmitting/base antenna height
�7���� Transmitting/base antenna heights used for curves
�8���� Time variability
�9���� Mixed-path method
10���� Receiving/mobile antenna height
11���� Effect of clutter shielding transmitting/base antenna
12���� Terrain clearance angle correction
13���� Location variability
14���� Correction based on tropospheric scattering
15���� Correction for antenna height difference
16���� Horizontal distances less than 1 km
17���� Equivalent basic transmission loss
18���� Variability of atmospheric refractive index
19���� Compatibility with the Okumura-Hata method
Annex 2� Frequency range 30 MHz to 300 MHz
Annex 3� Frequency range 300 MHz to 1 000 MHz
Annex 4� Frequency range 1 000 MHz to 4 000 MHz
Annex 5� Additional information and methods for implementing the prediction method
�1���� Introduction
������� 1.1���� The terminal designations
�2���� Maximum field-strength values
�3���� Determination of transmitting/base antenna height, h₁
������� 3.1���� Land paths shorter than 15 km
����������������� 3.1.1���� Terrain information not available
����������������� 3.1.2���� Terrain information available
������� 3.2���� Land paths of 15 km or longer
������� 3.3���� Sea paths
�4���� Application of transmitting/base antenna height, h₁
������� 4.1���� Transmitting/base antenna height, h₁, in the range 10 m to 3 000 m
������� 4.2���� Transmitting/base antenna height, h₁, in the range 0 m to 10 m
For a land path:
For a sea path:
������� 4.3���� Negative values of transmitting/base antenna height, h₁
�5���� Interpolation of field strength as a function of distance
�6���� Interpolation and extrapolation of field strength as a function of frequency
�7���� Interpolation of field strength as a function of percentage time
�8���� Mixed paths
������� 8.1���� The mixed path interpolation factor applicable to the method approved by RRC‑06
�9���� Correction for receiving/mobile antenna height
10���� Cluttered transmitter correction
11���� Terrain clearance angle correction
12���� Location variability in land area-coverage prediction
13���� Limiting field due to tropospheric scattering
14���� Antenna-height difference
15���� Distances less than 1 km
16���� An approximation to the inverse complementary cumulative normal distribution function
17���� Equivalent basic transmission loss
18���� An approximation to the 0.6 Fresnel clearance path length
Annex 6 �Procedure for the application of this Recommendation
Annex 7� Adjustment for different climatic regions
Annex 8� Comparison with the Okumura-Hata method