The Gemini NBI produces an acoustic image, cutting through the water with a narrow acoustic beam and at the high refresh rate offered from the Gemini range of multibeam sonars. Based on the proven design of the Gemini 720i, the Gemini NBI uses a 1° vertical beam instead of the 20° vertical beam found previously. The Gemini NBI’s reduced beam width allows the user to more precisely identify the position of the acoustic targets than is possible with a wide beam imaging sonar.
