Recommendation ITU-R P.619-6
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 and calculation methods
     2.1 Free space basic transmission loss L_bfs (dB)
     2.2 Depolarization attenuation A_xp (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 gases A_g (dB)
     2.4 Loss due to beam spreading A_bs (dB)
          2.4.1 Ray bending
               2.4.1.1 Tropospheric refraction
               2.4.1.2 Ionospheric refraction
          2.4.2 Beam-spreading loss for propagation through the atmosphere
     2.5 Scintillation
          2.5.1 Ionospheric scintillation A_si (dB)
          2.5.2 Tropospheric scintillation A_st (dB)
     2.6 Diffraction/ducting loss due to terrain and/or specific obstruction L_dtb (dB)
     2.7 Clutter loss L_c (dB)
     2.8 Building entry/exit loss L_be (dB)
     2.9 Precipitation-scatter transmission loss L_tps (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 prediction algorithm
     C.3 Algorithm inputs
     C.4 Attenuation along space–Earth propagation path (Descending ray)
     C.5 Attenuation along Earth-space propagation paths (Ascending ray)
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
Attachment F  to Annex 1  Test for whether precipitation-scatter calculation is necessary