Join Date: Feb 2011
Location: San Francisco Bay area
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Re: Experience with Garmin GMI 10 and related NMEA 2000 sensors?
I have the GMI 10, the DST800 depth / speed / temp sensor, and a Lowrance chartplotter, all connected via NMEA2000.
I normally have the GMI 10 displaying GPS speed, paddle speed, and depth. (you can go crazy with the custom screens on the GMI 10). Depth and GPS speed are also displayed on the plotter.
That's one nice feature of NMEA 2000 networking, data from any device is available to any other device on the bus.
I had one problem where I needed to update the software in the GMI 10 and you can only do that from a Garmin plotter, not the Lowrance.
My advice is, even though most brands offer NMEA2000, to try to stick to one brand.
Some other thoughts in no particular order :
GPS speed is much more useful than the paddle. The paddle is not very reliable - it regularly gets stopped by weed etc.
If you don't want a chartplotter, get a GPS "puck"
The depth meter is very accurate and reliable.
If I had wind data I would get a second GMI 10. Switching between screens will get old, and putting too much data on one screen would be confusing.
For serious navigating I would think about a fluxgate heading sensor which could also talk via NMEA 2000. Right now the GMI 10 will display GPS course, which is not quite the same as heading but still very useful.
If you have a heading sensor and a wind sensor the GMI 10 will calculate true wind.
I try and look on the bright side, my friends and family are never stuck for ideas for Christmas and birthday presents.
Bristol 31.1, San Francisco Bay
Last edited by MarkSF; 10-01-2012 at 08:13 PM.