Garmin GXM 31 Smart Antenna for GPSMAP 430/430s and 440/440s Chartplotters

The Garmin GXM 31 Smart Antenna for GPSMAP 430/430s and 440/440s Chartplotters is an all-in-one XM data receiver and antenna that delivers detailed XM WX Weather to your compatible Garmin marine products. The GXM 31 is designed to work specifically in conjunction with your Garmin GPSMAP 430/430s or 440/440s chartplotter to bring you real-time, animated weather data, and can be either flush or pole mounted to your boat. With XM WX Weather, you have the confidence of knowing what weather lies ahead. With a subscription to XM WX Weather, you'll receive comprehensive graphical weather displays on your Garmin chartplotter for any fixed location in the continental U.S., and 100 miles into U.S. coastal waters. Over 20 different types of graphical weather information can be overlaid onto your compatible Garmin display, depending on the XM WX Weather package you select. XM WX Satellite Weather delivers location-specific, animated, high-resolution weather data, in chart-overlay form, directly to your Garmin GPS, without the need for a separate PC connection. The GXM 31 includes a 30-foot connecting cable with a Positive Lock, waterproof Mini USB connector, weighs two pounds, and measures two inches in diameter and two inches in depth.