Patent ID: 6975927

Claim:
A transmitter for remotely controlling a locomotive entity, said transmitter comprising: a) a control entity capable of acquiring a plurality of states, said plurality of states including a linked state in which said control entity generates commands for causing an action to be performed by the locomotive entity; b) a first interface in communication with said control entity, said first interface being operative for receiving an identifier of the locomotive entity via a first communication link; c) a second interface in communication with said control entity, said second interface being operative for transmitting a signal over a second communication link different from the first communication link, the second communication link being an RF communication link; d) wherein when said control entity is in said linked state, the signal transmitted over said second communication link includes commands for causing the locomotive entity to perform one or more actions; and e) wherein when said control entity is in a state other than said linked state, the signal transmitted over said second communication link includes an identifier of said transmitter.