Abstract: A system and method for providing primary and secondary audio content over a wireless network at a public or private forum to at least one mobile audio receiver device includes receiving the primary audio content from a content provider over a corresponding communications path; transmitting selected primary audio content from the communications path continuously over the wireless network to the receiver; terminating transmission of the selected primary audio content to the receiver at predetermined time intervals or on-demand; transmitting the secondary audio content over the wireless network to the receiver while the selected primary audio content transmission is terminated, the secondary audio content being transmitted for a second predetermined time interval or on-demand; and transmitting the selected primary audio content from the corresponding communications path over the wireless network to the receiver after the secondary audio content being transmitted for a second predetermined time interval or on-de

Abstract: The present invention provides a method and apparatus for conserving power on a machine having a mobile communicator. The method includes the steps of determining a current status of the machine, determining a duration since entering the current status, and determining one of a plurality of power conservation modes in response to the current status, and the status duration.

Abstract: The present invention provides a method and apparatus for monitoring the operation of a mobile machine. The machine includes a mobile communicator adapted to communicate with a remote monitoring station. The method includes the steps of receiving a configuration message from the remote monitoring station via a wireless communication link, comparing at least one of a current machine position to the configuration information a current machine time of operation to the configuration message, and sending an alarm message to the remote monitoring station in response the comparison.