Land mobile station (or land mobile radio station) is a mobile

radio station Radio broadcasting is transmission of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience. In terrestrial radio broadcasting the radio waves are broadcast by a land-based radio ...

in the land mobile service that operates within a country or continent.ITU Radio Regulations, Section IV. Radio Stations and Systems – Article 1.73, definition: ''land mobile station / land mobile radio station'' Each ''station'' is classified by the ''service'' in which it operates permanently or temporarily.

References / sources

International Telecommunication Union (ITU)
{{Radio station ITU Radio stations and systems ITU