| 摘要 |
<p>The invention provides a locating device for use with a portable two-way radio transceiver, for enabling the radio transceiver to transmit a locating signal containing position locating information. The locating device comprises a sensor (510) for sensing a signal containing position locating information, a memory (504) for storing position locating information obtained from the signal, a communications device (507) for communicating with the radio transceiver, a control device (504) for controlling the radio transceiver via the communications device (507) and an activating device (517) for activating the locating device. When the locating device is activated, the control device (504) causes the radio transceiver to transmit a locating signal containing the position locating information stored in the memory (504).</p> |
