Garmin 378 Manuale Proprietario

Connect the optional GXM 30 antenna to the GPSMAP 378/478 

to access XM WX satellite weather and XM Radio. For more 

information about the GXM 30 antenna, see the GXM 30 Owner’s 

Manual.

  NOTE: You must subscribe to XM Radio and/or XM WX 

Satellite Weather to use the XM Radio and/or XM Weather 

features on your GPSMAP 378/478.

1.  Position the antenna where it has a clear view of the sky. 

This can be on the outside of the vehicle or behind the 

windscreen.

2.  Plug the GXM 30 cable into the USB port on the back of the 

unit, as shown in the following illustrations.

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