A data collection system including a portable data terminal and a base for receiving the portable data terminal. The portable data terminal having a first interface for receiving power and a second interface for connecting to a communication link. The base having a housing adapted to receive and support the portable data terminal, a power supply receiving power from an external power source and upon insertion of the portable data terminal into the housing supplying power to the first interface on the portable data terminal, a communication link adapted to interface with the portable data terminal, and a location determination device, such as a GPS receiver, connected to the communication link and supplying the portable data terminal with location data via the communication link.