land station in the land mobile service
Also called a reference station. A receiver that is set up on a known location specifically to collect data for differentially correcting rover files. The base station calculates the error for each satellite and, through differential correction, improves the accuracy of GPS positions collected at unknown locations by a roving GPS receiver.
(In topic `Mobile Internet`) A base station is the central radio transmitter & receiver that maintains communications with a mobile phone within a given range.
A cellular, mobile or other radio transmitter and receiver, for the GSM context see BTS.
The central transmitter in a communications system that acts as the cell hub for communicating with handsets and/or mobile units. 
The equipment that sends and receives mobile phone calls, texts, pictures and web pages etc. Includes antenna(s), a supporting structure such as a mast and a cabinet of equipment to power the base station