Garmin GMR 18 HD Radome Brand New Includes One Year Warranty The Garmin GMR 18 HD is an 18-inch, 4-kilowatt high definition radar with 36 nm range and 1st Level Dynamic Auto Gain. The radar features high-powered Digital Signal Processing, providing sharper radar imagery and improved target separation. It has self-contained signal processing, which provides more precise, easy to read signature. The GMR 18 HD provides MARPA target tracking when combined with a multi-function display and an optional heading sensor. MARPA tracking allows you to track the bearing, course, speed and predicted closest approach of targets. It transmits data over the Garmin Marine Network. Once connected to the network, you can use any network-compatible Garmin chartplotter as your radar screen. GMR 18 HD Features Marine Radar Part Number 010-01719-00 1st Level Dynamic Auto Gain Dynamic Sea Filter 8-bit True Color Resolution For a Clear Presentation on Your Chartplotter Screen 18 Diameter Radome, 9.3 High, 24 RPM 100-Megabit Plug- Play Proprietary Network Ability to Expand Your Boat's System as Needed Connect a GPS Antenna 1 Remote Network Sensor Directly to the MFD or a GMS 10 Network Port Expander for Multiple MFD's Network Sensors to the Same Network 4kW HD Radar w/ 36-Nautical Mile nm Capability Digital Signal Processor Precise Recognition, Enhancement, Filtering of Radar Echoes Easy to Read Interpret 36nm / 20m Max / Min Range Radar Images Can be Overlaid on Moving Map Chartplotter Display Autopilot or Heading Sensor Recommended for Best Results Configure Display by Splitting the Screen Show Overlay Standard Radar Simultaneously Mini Automatic Radar Plotting Aid MARPA Capability Allows Boaters to Track Bearing, Course, Speed, Predicted Closest Approach By Both Time Distance Targets Vital Situational Awareness Data GPS / Radar / Sonar / Near Real-Time Graphical Weather Data Audio Channels