Abstract: A transceiver unit includes an enclosure, a first input port, a second input port, a first output port, and a second output port. A radio frequency (RF) pass-through path is within the enclosure between the first input port and the first output port and includes a gain module. The RF pass-through path is configured to receive a first RF signal at the first input port and to transmit a second RF signal at the first output port. The gain module is configured to amplify the first RF signal to produce the second RF signal. The transceiver unit further includes a transceiver path within the enclosure between the second input port and the second output port, the transceiver path including a signal processor.

Abstract: A method of localizing a medical tool, the method comprising: (1) generating an image of a reference target with a camera that is attached to a medical tool, wherein the reference target is remote from the medical tool and located in a room at a known position relative to a coordinate system; and (2) determining the position of the medical tool relative to the coordinate system at least partially on the basis of the generated image of the reference target. Examples of medical tools that can be localized in accordance with the present invention include medical imaging devices, surgical instruments, and bite blocks.