Join Date: Oct 2009
Location: Swarthmore, PA
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Thanks. The upgrade does not affect me since I had planned to go with the Garmin 441s which has two NMEA ports. Guess it would be a welcome addition to those with older one port chart plotters. I wonder if those older chart plotters can pull both DSC and AIS data off the single port?
One other case would be people who have a separate depth sounder that they want to feed into the plotter by NMEA. Now you have three inputs (depth, DSC, and AIS) with two available inputs (like with the Garmin 640 that I am considering), so two of them need to be combined.
If the GX2150 multiplexes the two (and I'm not 100% sure it really does due to some of the weasel words in the descriptions), it could make things a lot easier and may avoid the need to buy a multiplexer.
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1998 Catalina 250WK Take Five (at Anchorage Marina, Essington, on the Delaware River)
1991 15' Trophy (Lake Wallenpaupack)
1985 14' Phantom (Lake Wallenpaupack)
Last edited by TakeFive; 01-18-2011 at 08:45 PM.