Broadcasting by satellite leads to propagation considerations that are not entirely comparable withthose occurring in the fixed-satellite service. Attenuation data for the space-to-Earth direction areneeded in the form of statistical averages and/or contour maps of attenuation and depolarization forlarge areas. Specific coordination problems may arise at the margin of the service area betweensatellite broadcasting systems and terrestrial or other space services. General methods for predictionof Earth-space path propagation effects are presented in Recommendation ITU-R P.618. Additionalinformation specific to satellite broadcasting system planning is treated in this Annex. It should benoted that feeder links are considered to be part of fixed-satellite services, not the broadcastingservices