Garmin GMR Fantom 256

Garmin’s GMR Fantom 256 allows you to get solid-state radar performance clear out to 96 nautical miles.

Product Information

The GMR Fantom 256 is one of the most advanced radars around, and it can punch through the atmosphere from 20 feet out to 96 miles with its 250 watts of power. It also has a shockingly long list of features. Ready? MotionScope moving-target coloration, MARPA automatic acquisition, auto bird gain, pulse-compression high-res imaging, moving-target Echo Trails, overlay, Dynamic Sea Filter and Guard Zone (which raises an alarm when a target enters your personally set safety zone) are all on the list. There’s also a completely new feature called scan-to-scan averaging, which helps cut sea clutter and interference.

Contact: garmin​.com


  • Physical Dimensions:
    Pedestal: 16.6" x 14.3" x 10.7" (42.1 x 36.4 x 27.1 cm)
    Full assembly: 15.9" height x 75.2" diameter (40.3 cm x 190.9 cm)
  • Weight:
    Array: 16.0 lb (7.3 kg)
    Pedestal: 34.7 lb (15.7 kg)
  • Water Rating: IPX6
  • Peak Transmit Power: 250 W
  • Max Wind Load: 80kt
  • Antenna Length: 72" (182.9 cm)
  • Rotation Speed (RPM): 24 and 48 rpm (high speed only available in single range mode with MotionScope disabled, and on range settings of 12 NM or lower)
  • Beam Width: 1.25° horizontal, 23° vertical
  • Maximum Range: 96 nm
  • Minimum Range: 6 meters
  • Radar Type: Open-Array