Propagation effects in the land mobile-satellite service (LMSS) differ from those of the fixed-satellite
service (FSS) primarily because of the greater importance of terrain effects. In the FSS it is generally possible to discriminate against multipath,
ITU-R PN.681-1-1994 history
1994ITU-R PN.681-1-1994 Propagation Data Required for the Design of Earth-Space Land Mobile Telecommunications Systems