This Technical Basis for Regulation (TBR) specifies the technical requirements that apply to Land Mobile Earth Stations (LMES) for compliance with Articles 4.1 and 4.3 of the SES Directive [1]. These LMES have the following characteristics: - The LMES are operating in one or more frequency ranges of the Fixed Satellite Service (FSS): - 10,70 GHz to 11,70 GHz (space to earth); - 12,50 GHz to 12,75 GHz (space to earth); - 14,00 GHz to 14,25 GHz (earth to space).