Can I connect a Furuno DRS Radar sensor to the GP1871F GP1971F Combo units

​Yes. The DRS4W First Watch Wireless Radar can be connected to the GP1871F/1971F Combo units via wireless LAN. Up to two devices can be connected to the DRS4W at the same time. That could be two GP1871F/1971F Combo units or one GP1871F/1971F and an Apple iOS device running the Furuno DRS4W radar sensor app.