For purposes of planning the BSS in the band 11.7-12.5 GHz in Region 1 and 11.7-12.2 GHz in Region 3, right-and left-hand circular polarization was adopted.Similarly,in Region 2,right and left-hand circular polarization was selected for the Plan for the broadcasting-satellite service in the band 12.2-12.7 GHz as well as for the associated feeder-link Plan in the band 17.3-17.8 GHz.Furtllcrmore,at the WARC ORB45 the frequency bands 14.5-14.8 GHz (for countries outside Europe and for Malta) and 17.3-18.1 GHz were selected for the planning of feeder links for the broadcasting-satellite service in Regions 1 and 3. It was assumed that circular polarization would be used for planning. Alternatively linear polarization could be used, subject to the agreement of ail administrations sharing the given orbital position.