When connected to a compatible Garmin chartplotter, a Garmin radar can display radar returns for areas from 1/8 of a mile up to a maximum of 72 nautical miles*. Using the chartplotter, the user can select what range of radar returns will show on the screen.

If multiple chartplotters are connected to the radar simultaneously, each screen will show the same radar returns at the same range. It is not possible to have two connected chartplotters display a different range from one radar. Changing the range on one screen will cause all other connected screens to change range as well.

The following Garmin radars can show a Dual Range radar display when connected to a GPSMAP 7x2, 7x3, 9x2, 9x3, 10x2, 12x2 12x3, 4xxx, 5xxx, 6xxx, 70xx/72xx, 74xx/76xx, or 8xxx series device:

GMR Fantom 4
GMR Fantom 6
GMR Fantom 18
GMR Fantom 24
GMR Fantom 254
GMR Fantom 256
GMR 18 xHD
GMR 24 xHD
GMR 404 xHD
GMR 406 xHD
GMR 424xHD2
GMR 604 xHD
GMR 606 xHD
GMR 624 xHD2
GMR 626 xHD2
GMR 1204 xHD
GMR 1206 xHD
GMR 1224 xHD2
GMR 1226 xHD2
GMR 2524 xHD2
GMR 2526 xHD2

The Dual Range option shows a split-screen, with each side of the split-screen having a user-adjustable range. The screen's left side can show a range of three nautical miles or smaller, and the right side of the screen can show a range of 3 nautical miles or larger. All compatible chartplotters on the network will show the same dual ranges as the other network devices.

*The maximum radar range is dependent on which model of radar is being used. Please refer to the Owner's Manual or Installation Instructions for your radar for your device's maximum distance capabilities.