A remotely controlled or computer controlled receiver and transmitter located in a high place or with a high mast to relay or boost radio signals thereby enhancing the range of a radio system. These are often seen near busy roads or on hilltops.
Communications: A non-mobile scanner or two-way radio that is often connected to a larger, outdoor antenna. GPS: A station designed to allow the operator to monitor and control operation of the GPS system.
The physical wireless newtork access point to the Internet.