The GMR 18 xHD is our next-generation, 4kW high-definition dome radar. It offers intuitive advanced open-array features that make it very easy to use. And, it offers higher resolution than our previous generation 18″ dome radars. New Dynamic Auto Gain and Dynamic Sea Filter continually adjust to your surroundings providing optimal performance in varying conditions. Choose from multiple levels of aggressiveness or use manual gain adjustment. Dual range operation allows split-screen display of far and close radar views in full 8-bit color. Range of 48 nautical miles.