Garmin GMR 18 HD3 is a compact 18-inch high-definition magnetron dome radar designed to provide clear target detection and improved situational awareness on the water. It features 4 kW transmission power, up to 36 nautical miles of range, Dynamic Auto Gain, Dynamic Sea Filter, MARPA target tracking and dual-radar support. Its compact radome design is suitable for vessels where installation space is limited.

Specifications

• Brand: Garmin
• Model: GMR 18 HD3
• Product Code: 010-02843-00
• Radar Type: Magnetron Radome
• Antenna Size: 18"
• Antenna Length: 43 cm / 17"
• Transmit Power: 4 kW
• Maximum Range: 36 nautical miles
• Minimum Range: 20 m
• Rotation Speed: 24 RPM
• Beam Width: 5.2° horizontal / 25° vertical
• Input Voltage: 11–32V DC
• Standby Power: 15W
• Typical Transmitting Power: 40W
• Waterproof Rating: IPX7
• Dimensions: 20" diameter × 9.8" height
• Weight: 7.0 kg / 15.4 lb
• Radar Overlay: Yes
• Dual Radar Support: Yes
• MARPA: Yes, requires heading sensor
• Dynamic Auto Gain: Yes
• Dynamic Sea Filter: Yes

Key Features

• 4 kW magnetron radar
• Up to 36 NM range
• Compact 18" radome
• High-resolution radar imagery
• Dynamic Auto Gain
• Dynamic Sea Filter
• MARPA target tracking
• Dual-radar support
• Radar overlay
• Close-range detection from 20 meters
• Quiet dome drive motor
• Timed transmit mode for reduced power consumption
• IPX7 water resistance