Annex 1
1
Introduction
2 Structure of the Recommendation
3 General
considerations
3.1
Assumptions
3.2 Overview
of propagation models
4 Radio-climatic information
4.1
Radio-climatic data
4.2
Radio-climatic
zones
4.3 Use of
radio-climatic information from other
Recommendations
5 Distance limits
5.1 Minimum
distance limits
5.2 Maximum
distance limits
5.3 Use of
distance limits for iterative
calculations
6 Determination of the coordination distance for
propagation mode (1) – Great circle propagation mechanisms
6.1
Coordination distances based on worst-month time
percentages
6.2
Calculation of the coordination distance for propagation
mode (1)
7 Determination of the coordination distance for
propagation mode (2) – Scattering from hydrometeors
7.1
General
7.2
Coordination distances based on worst-month time
percentages
7.3
Calculation of contours for propagation mode (2)
8 Auxiliary contours
8.1
General
8.2
Hydrometeor scatter (propagation
mode (2))
Appendix 1 to Annex 1
Appendix 2 to Annex 1 - Calculation of the coordination distance for
propagation mode (1)
1 Site shielding
2 Frequencies from 100 MHz up to and including
790 MHz
3 Frequencies between 790 MHz and 60
GHz
4 Frequencies between 60 GHz and 105
GHz
Appendix 3 to Annex 1 - Calculation of the coordination distance for
propagation mode (2)
1 Overview
2 Maximum calculation
distance
3 Calculation of the propagation mode (2)
coordination contour
4 Determination of auxiliary contours for
propagation mode (2)
4.1 The
step-by-step algorithm
Appendix 4 to Annex 1 - Reference radiation patterns for line-of-sight
radio-relay system antennas for use in coordination studies and interference
assessment in the frequency range from 1 to about 40 GHz (based on
Recommendation ITU-R F.699)
Appendix 5 to Annex 1 - Input and derived parameters