An example elevator machine frame assembly includes a plurality of support plates configured to support at least selected portions of an elevator machine including a traction sheave. A balance hanger is on top of a handle, which connects to a swinging support part. In preferred form, the pulses comprise ultrawideband pulses each occupying a sub-band of the overall system bandwidth. The conference phone can connect with one or more wireless devices through the wireless interface. These systems and processes are accomplished by using a computer to intraoperatively obtain images of body parts and to register, navigate, and track surgical instruments.