1. A method of operating a locator device, comprising the steps of: storing a definition of a plurality of events, each of which can be represented by a status of the locator device; storing a definition of a plurality of triggers, each trigger comprising: a group of one or more said events; and a combination of events selected from said group; storing a definition of a plurality of event profiles, each of which is an association between: one of said triggers; and a set of one or more locator device commands; responding to a contemporaneously occurring subset of said events by evaluating the subset of events against said triggers; and activating one of said event profiles by processing its corresponding set of one or more locator device commands whenever the subset of events includes the combination of events of the trigger of said one event profile; wherein each set of one or more locator device commands changes an operational parameter of said locator device.