The Garmin GXM 30 XM smart antenna (includes flange mnt, USB ext. cable) delivers XM Satellite Radio, NavTraffic and Weather services to your compatible Garmin. Roughly 3 inches in diameter, the GXM 30 processes all XM information and sends the finished data to your unit for display. The GXM 30 requires a XM Satellite subscription(s). Traffic services are available only in select cities where XM Nav Traffic coverage exists. The GXM 30 is compatible with the Garmin StreetPilot 2730, StreetPilot 7200 and GPSMAP 376C.
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