Join Date: Jul 2008
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1. I understand IPX7, but I wonder about all the electrical plug-in connections on the 640's bracket (power, 0183), and the ability of the bracket to withstand weather. I can't physically see a 640.
2. Another issue: planning on a PC. If the BlueChart G2 charts come preloaded on the 640, how does one view the charts on a PC, to use the PC to plan ahead and upload waypoints to the 640? Or does Garmin allow a user to copy BlueChart G2 charts from the 640 onto a card or via USB into the PC, so a user can plan on the PC using MapSource? Or, does a user have to purchase a BlueChart G2 CD and get unlock codes for use on the PC?