Garmin GPSmap 478 GPS Receiver
List Price: Release Date: 2006-11-01
Brand: Garmin
Features:
* WAAS-Enabled, 12 Parallel-Channel GPS Receiver
* For Offshore Applications
* Features Built-In Marine Detail Charts Of The United States Coastline, Including Alaska & Hawaii
* Utilize Elements Of New Bluechart G2 Technology
* Preloaded With City Navigator Nt Detailed Street Maps Of The United States, Canada & Puerto Rico
Batteries Included: yes
Sales Rank: 2567
Go from box to boat to dash with the portable and versatile GPSMAP 478. This combination color chartplotter and land navigator comes preloaded with U.S. marine charts utilizing elements of the latest BlueChart g2 technology, in addition to detailed street-level mapping. Optional weather and sonar capabilities combined with the ability to conveniently add plug-in data cards, let you easily add more maps and features - making this one incredible GPS navigator for land and sea.PRODUCT FEATURES:Accepts the latest (optional) BlueChart g2 data cards;Add optional GSD 21 for full-feature sonar capability;Add optional GXM 30 antenna for XM WX Satellite Weather;Provides tides and built-in celestial information;NMEA 0183 input and output;Removable quad helix antenna;Single knob tilt/swivel mount.

total reviews 14
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Not great
I bought and used this plotter over the summer of 2008 in Maine. While better than nothing the screen is really too small to be useful. If you zoom out to get a range of a few miles, you lose chart detail. The screen keys on the cursor, and it can then be difficult to find the arrow indicating the boat position again. I would have returned it, but Amazon has only a 30 day return policy on unused items. So you buy it and try it, you own it. Unless you have a very small craft, buy a plotter with a larger screen.

