New Stuff: Garmin GMR Fantom 18 & 24 Radomes


Garmin’s new GMR Fantom 18 and GMR Fantom 24 are solid-state, pulse compression radomes offering MotionScope Doppler technology and 40W of power, the highest in the industry for its kind. Available in an 18” or 24” footprint, they bring Garmin’s award-winning Fantom technology to a smaller size and lower price point, making them an attractive option for boats where an open-array antenna isn’t an option.

Doppler processing allows the Fantom to detect moving targets in real time, helping users avoid potential collisions, find flocks of birds and track weather. Upon detection, MotionScope highlights moving targets on the radar display with an easy-to-see color. When the Echo Trails setting is activated, a fading “trail” on the screen can help easily identify the direction of the moving target(s) and potential collision threats. The trails shown are corrected for the boat’s rotation when the radar is interfaced with an autopilot or heading sensor.

Pulse compression technology provides high resolution while maximizing energy to enhance target detection. Pulse expansion can then maximize target size to help differentiate real targets from noise. The Fantom 18 features a 5.2-degree beam width, while the Fantom 24 offers a narrower 3.7-degree width that paints a precise, high-resolution image.

Both radomes offer excellent range, from 20’ to 48 nautical miles. The dual-range feature provides the ability to see both close- and long-range simultaneously, with an overlay on a chart for one or both ranges. This eliminates the need to toggle between views, and allows the captain to keep a close eye on his immediate surroundings as well as objects on the horizon.

The Fantom 18 and Fantom 24 feature low power consumption (less than 25W) and instant power-up. They also offer Auto Bird Gain, a unique feature that lets mariners locate flocks of birds at the water’s surface. And thanks to dual radar support, Fantom radomes can be used with a Fantom open-array, a GMR xHD2 open array, or a GMR xHD dome radar to provide radar redundancy and more flexibility to view different data on independent display units.

Dynamic Auto Gain and Dynamic Sea Filter continually adjust to the surroundings, water and weather conditions to provide optimal performance while reducing excess noise and clutter. And MARPA settings enable the tracking of 10 targets simultaneously.

The Fantom 18 and Fantom 24 are compatible with the new GPSMAP 7×2/9×2 and 10×2/12×2 series, as well as the GPSMAP 7400/7600, 8000/8200 and 8400/8600 series.


  • Fantom 18 $1999.99
  • Fantom 24: $2799.99

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