Furuno Radars

Choosing a Furuno marine radar

Radar is the sense that sees through fog, darkness, and rain, and Furuno builds some of the most respected marine radar on the water. This collection covers radomes, open array antennas, pedestals, and cables, including solid state Doppler models. Choosing right comes down to radome versus open array, the power and antenna size for the range you need, and matching the radar to your display.

Radome or open array

A radome is an enclosed dome antenna, compact and easy to mount on a mast or hardtop, which makes it ideal for smaller boats and sailboats. An open array antenna spins an exposed bar that is longer, which gives a narrower beam, better target separation, and longer range, the choice for larger powerboats and offshore work. Bigger arrays see two close targets as two, not one.

Power and range

Traditional radar power is rated in kilowatts, and more power and a larger antenna reach farther and punch through rain. Furuno solid state Doppler models use lower transmit power with advanced processing and add target analyzer features that color approaching targets, which helps you spot a closing vessel fast. Match the power and technology to how far offshore you run and the conditions you face.

Antenna size and beam width

A longer open array has a narrower horizontal beam, which sharpens bearing accuracy and separates targets that a short antenna blurs together. If you run crowded water or offshore, the longer array pays off. On a smaller boat where space and weight aloft matter, a radome or shorter array is the practical pick.

Match the radar to your display

Furuno radar pairs with Furuno multifunction displays like the TZtouch series, and the antenna, cable, and display all have to be compatible. Confirm your MFD and the cable length for the run from the antenna mount to the helm before ordering.

Mount it high and solid

Radar needs height for range and a solid, level mount so the beam sweeps true. Plan a mast or a rated radar mount that carries the antenna weight and gives the array clearance to spin. Keep it clear of antennas and people, since radar energy is strongest close to the antenna.

Not sure which Furuno radar fits your boat. Tell our techs your display, boat size, and how far offshore you run, and we will match the antenna, power, and cable so you see clearly in any conditions. Always verify compatibility with your specific multifunction display model before purchase. Consider the total weight of the antenna and mount when planning installation on sailboats or small powerboats. Solid state models often draw less power from your battery system than older magnetron units, which can matter on long passages. Check local regulations for radar installation and operation near marinas or restricted areas. Proper cable routing prevents signal loss and damage from chafe or water intrusion. Regular maintenance includes checking the array rotation and cleaning the radome surface for best performance.