According to one aspect, an exemplary method of manufacturing a magnetic head assembly with a predetermined wrap angle is described. The foot rest plate may be made of a plastic material. The seismometer or surface support vessel contains a navigation unit for directing the control unit to a desired location on the ocean bottom. The console is an enclosure that is capable of housing each coupling site. The half mirror, which transmits a visible light element and reflects near infrared light, is disposed in front of the display when the camera is connected to the computer.