Garmin GPSMAP 478

Description: The Garmin GPSMAP 478 is a 12-channel, maritime global positioning device.Compared to other marine GPS receivers on the market, it is relatively inexpensive at around $760.

Pros: Provides verbal navigation instructions.Utilizes WAAS (Wide Area Augmentation System) technology to achieve an error margin of 3 meters or less.Share information, update database maps, and add programs using this receiver's USB computer connection.Tracklog function automatically creates a record of the path traveled and stores it as a series of points for later use.Safe in all weather, this unit is waterproof.System includes MapSource city navigator North America NT and MapSource trip & waypoint manager.

Cons: Has a 3.8 in screen size, which is less favorable than some similarly priced GPS receivers.For example, the Lowrance Globalmap 4900m, a 12-channel GPS receiver at around $740, has a 7 in screen size.

Suitability: A maritime GPS receiver, suited for water-based adventures.This GPS device offers special features and functions needed for boating and other marine activities.Designed with detachable antenna which is ideal for receivers that will be used both in the car and outdoors.

Value: In general, this GPS receiver's features are in line with its price.This unit is able to store up to 3000 waypoints.This is significantly more than the average GPS device.Device is covered by a 1 year warranty.

Suggestions: This GPS device has only internal memory.If you plan to store many trips or add base maps, you may wish to consider a unit that has removable storage media.

CNET's Product Briefs are generated by a software tool that combines product specifications with knowledge of our editorial experts. They do not reflect hands-on assessment or labs testing. For more information about how we create Product Briefs, contact us.

• Manufacturer: Garmin
• Part Number: 010-00543-00

• General

• Width 5.7 in
• Depth 1.9 in
• Height 3.2 in
• Weight 13.6 oz

• Acquisition Times

• Cold acquisition times 45 sec
• Warm acquisition times 15 sec

• GPS System

• Recommended Use Marine
• Receiver 12 channel
• SBAS WAAS
• DGPS DGPS ready
• Accuracy Position - 15 m, Position - 3 - 5 m ( With DGPS ), Position - 3 m ( With WAAS )
• Update Rate 1/second
• Connectivity USB
• Interface NMEA 0183
• Voice Navigation instructions
• Antenna Detachable
• Features Built-in speaker, Optional external GPS antenna connection
• Software Included MapSource Trip & Waypoint Manager, MapSource City Navigator North America NT
• Compatible GPS Software MapSource BlueChart g2

• Navigation

• Waypoints 3000
• Navigation tracks 15
• Tracklog points 10000
• Navigation routes 50

• Built-in Display

• Type TFT
• Resolution 480 x 320
• Diagonal Size 3.8 in
• Display Illumination Yes
• Color Support Color

• Battery

• Battery technology Lithium ion
• Mfr estimated battery life 15 hour(s)

• Miscellaneous

• Included GPS accessories USB cable, AC power adapter, Mounting bracket, Power/data cable, Protective cover, Car power adapter
• Waterproof Yes
• Waterproof standard IPX7

• Manufacturer Warranty

• Service & support type 1 year warranty

• Environmental Parameters

• Min operating temperature 5 °F
• Max operating temperature 140 °F

Garmin

Manufacturer profile

• Website: http://www.garmin.com
• Address: 1200 East, Olathe, KS.
• Phone: 913-397-8200
• Fax: 913-397-8282