A method and mobile transceiver for asset tracking. In one aspect, there is a of operating the mobile transceiver comprising determining whether a door of a container to which the mobile transceiver is mounted is open or closed, switching an active antenna for the wireless transceiver to the first antenna when the door of the container is determined to be open, and switching the active antenna for the wireless transceiver to the second antenna when the door of the container is determined to be closed.