Garmin GPSMAP 172C Review

Garmin GPSMAP 172C Color Marine ChartPlotter Review

Amazon Product Description: [link]
The GPSMAP 172C fixed-mount chartplotter offers brilliant sunlight-readable color LCD, robust features, and a user-friendly interface in a compact, value-priced console.It comes standard with a built-in worldwide marine basemap and accepts MapSource BlueChart offshore marine cartography featuring detailed depth contours, inter-tidal zones, wrecks, navaids, and many other points of interest. For small-water anglers, the GPSMAP 172C is compatible with MapSource Recreational Lakes with Fishing Hot Spots featuring fishing areas, boat ramps, marinas, and hazards for hundreds of popular U.S. and Canadian lakes. Pre-programmed data cards can be easily inserted into the slot on the front of the unit.For added flexibility, mariners can upgrade the GPSMAP 172C to a full-fledged combination chartplotter/sounder at any time by adding a Garmin GSD 20 "black box" sonar and transducer.
Amazon Features: [link]
  • 320 x 320-pixel, 256-color CSTN screen with adjustable CCFL backlight
  • 3.2" W x 3.2" H (4.5" diagonal) viewing area
  • 6.3" x 4.9" x 3.7" (W x H x D) unit dimensions
  • State-of-the-art 200 MHz processor
  • User waypoints are automatically tagged with the date and time of creation
Amazon Technical data
  • Waypoints/icons: 3,000 waypoints with name, symbol, depth, and water symbols, 10 proximity
  • Routes: 50 reversible routes with up to 50 points each, plus MOB and TracBack modes
  • Tracks: 10,000-point automatic track log, 15 saved tracks (up to 700 track points each) for retracing your path in both directions
  • Trip computer: Trip odometer, stopped time, moving average, moving time, total average, total time, maximum speed, odometer
  • Alarms: Anchor drag, arrival, off-course, proximity waypoint, and clock
  • Tables: Built-in celestial tables for sun and moon by date and position
  • Tides: Tide data
  • Map datums: More than 106, including user datum
  • Position format: Lat/Lon, UTM/UPS, Maidenhead, MGRS, Loran TDs, and other grids
  • DSC support: Yes
  • Receiver: WAAS-enabled, 12-parallel-channel GPS
  • Acquisition times: Warm: app. 15 seconds; cold: app. 45 seconds; AutoLocate: app. 5 minutes
  • Update rate: Once per second, continuous
  • GPS position accuracy: Within 15 meters (49 feet), 95 percent typical
  • GPS velocity accuracy: 0.05 meters per second, steady state
  • Interfaces: NMEA 0183 (2 inputs), RTCM 104 DGPS corrections and outputs
  • Antenna: Choice of Internal QuadHelix or External QuadHelix (GA 29 remote marine mount with 30-foot cable)
  • Basemap: Built-in worldwide marine basemap
  • Uploadable maps: Accepts preprogrammed or user-programmed Garmin data cards containing optional MapSource cartography
  • Plotting scales: 20 feet to 800 nm with dedicated pushbutton zoom control
  • Power usage: 6 watts
  • Display size: 3.2 by 3.2 inches, 4.5 inched diagonal
  • Display type: 256-color CSTN, 320 x 320 resolution
  • Waterproof : Yes, to IEC 60529 IPX7 standards
  • Temperature range: 5 to 131 degrees F
  • Data storage: Internal backup of user settings, no memory battery required
  • Item width: 6.3 inches
  • Item height: 4.9 inches
  • Item depth: 2.8 inches
  • Item weight: 1 pound, 1 ounce
  • Warranty: 1 year parts and labor
  • In the box: GPSMap 172C with built-in marine basemap, remote antenna with 30-foot cable or integrated GPS sensor, power/data cable, surface-mount bracket, quick-start guide, user's manual

Great summary and comments from Richard Wilson at
I found the GPSmap 176 quite easy to use and it's many features very helpful. The map redrawing process is very fast. This is important when zooming in or out or when using the map with track up. The compact size makes it ideal for use in a car and I will use it for automobile travel probably more than boat navigation. The ability to find rest areas, restaurants, and gas stations way ahead is a handy thing to have. By attaching a cigarette lighter plug to the power cord you won't have to worry about battery drain and can leave the backlight on for better visibility or night use. All in all I was very satisfied with the operation of the GPSmap 176. [link]