Furuno 1623 marine radar in good condition

The Furuno 1623 is a compact monochrome radar, extremely popular for small recreational and fishing boats due to its reliability and low power consumption.

Here are its detailed technical characteristics:

1. Power and Range

• Output power: 2.2 kW (can pierce rain or light fog).

• Maximum range: Up to 16 nautical miles (MN).

• Range scale: Adjustable from 0.125 to 16 MN, ideal for coastal navigation and port approach.

2. Antenna (Radome)

• Diameter: Radome of 15 inches (approximately 38 cm), easy to install even on restricted masts or supports.

• Rotation speed: It adapts to your speed with several modes (24, 31 or 41 rpm). It rotates faster at close range to refresh the image more often during tricky maneuvers.

• Beamwidth: 6.2° (horizontal), which provides good target separation for its size.

3. Screen and Display

• Screen: 6-inch monochrome LCD (Silver Bright), designed to remain readable even in direct sunlight.

• Definition: 240 x 320 pixels with 4 gray levels to distinguish the intensity of echoes (rain vs. rocky coast).

• “Sleep” mode (Watchman): The radar stops and activates at regular intervals to monitor obstacles while saving your battery.

4. Navigation Functions

• Guard zones: You can define an alarm zone; if a boat or coast enters it, an audible alert sounds.

• Reverse echoes: Possibility of displaying echoes in white on a black background for better night vision.

• Data overlay: If connected to a GPS (via NMEA 0183), it can display cursor position (L/L) and navigation data.