CONTENTS

Policy on Intellectual Property Right (IPR)
Annex 1
 1     Introduction
        1.1     Temporal and location variability
        1.2     Apparent and free-space elevation angles
        1.3     Relevant propagation mechanisms
 2     Propagation mechanisms
        2.1     Free space basic transmission loss  (dB)
        2.2     Depolarization attenuation  (dB)
                  2.2.1     Cross-polar discrimination and cross polar attenuation
                  2.2.2     Faraday rotation
                  2.2.3     Hydrometeor depolarization
        2.3     Attenuation due to atmospheric gasses  (dB)
        2.4     Loss due to beam spreading  (dB)
                  2.4.1     Ray bending
                  2.4.2     Beam-spreading loss for propagation through the atmosphere
        2.5     Scintillation
                  2.5.1     Ionospheric scintillation  (dB)
                  2.5.2     Tropospheric scintillation  (dB)
        2.6     Diffraction/ducting loss due to terrain and/or specific obstruction  (dB)
        2.7     Clutter loss  (dB)
        2.8     Building entry/exit loss  (dB)
        2.9     Precipitation-scatter transmission loss  (dB)
       2.10     Differential rain attenuation
 3     Evaluation of interference
        3.1     Basic transmission loss for single-entry interference
        3.2     Clear-air basic transmission loss for multiple-entry interference
 4     Correlation between propagation losses
 5     Multiple-entry interference analysis methods
        5.1     Monte Carlo simulation
        5.2     Analytical techniques
Attachment A to Annex 1 Geometry of straight-line Earth-space path
Attachment B  to Annex 1 Conversion between apparent and free-space elevation angles
Attachment C to Annex 1  Attenuation due to atmospheric gasses
        C.1     Introduction
        C.2     Attenuation due to atmospheric gaseous on an Earth-space path
Step-by-step method
        C.3     Descending ray when traced from Earth-based station
START OF LOOP FOR SUCCESSIVE ATMOSPHERIC LAYERS
END OF LOOP
        C.4     Ascending ray when traced from Earth-based station
START OF LOOP FOR SUCCESSIVE ATMOSPHERIC LAYERS
END OF LOOP
        C.5     Atmospheric parameters
        C.6     Reference atmosphere
Attachment D to Annex 1  Tropospheric scintillation
        D.1     Introduction
        D.2     Scintillation intensity
        D.3     Tropospheric scintillation short-term variability
Attachment E to Annex 1  Beam clearance taking atmospheric refraction into account
E.1
START OF LOOP
END OF LOOP
Attachment F to Annex 1
Test for whether precipitation-scatter calculation is necessary
F.1