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post #3 of Old 11-05-2009
osirissail
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For sailing purposes the Garmin 76 series is used as an emergency navigation system should the rest of the navigations systems fail. It is also used as a source of NMEA GPS signals to feed a computer. With the very little screen it was never designed to be a replacement for a "chart plotter" or computer based navigation system.
- - Garmin and everybody else have larger screen units incorporating maps, etc. Or you can use a notebook computer and a Garmin 76 which supplies Lat/Long information to a free navigation program and free maps from NOAA.
- - Even cheaper, you can purchase on-line a China USB 20-channel "hockey puck" GPS for about $20 which will feed your computer based navigation program.
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