The GPSMAP® 178C Sounder is a new-generation fully integrated chartplotter and powerful sonar, offering the same brilliant sunlight-readable color LCD, powerful features, and simple interface as the GPSMAP 172C—all in a compact, value-priced console that leaves fish nowhere to hide.
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 178C Sounder 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.
Features
- 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 makes data acquisition, panning, and zooming virtually instantaneous
- Choose either a dual-frequency 50/200 kHz transducer for offshore boating or a single-frequency 200 kHz transducer for inland lakes and bays
- See-Thru® technology (which separates fish from thermoclines and structure) and Depth Control Gain (DCG®) for detailed images of structure and bottom densities
- New digital display technology offers an easy-to-read, semi-transparent digital readout that allows users to see sonar images "behind" the data
- User waypoints are automatically tagged with the date and time of creation, as well as water temperature and depth—vital information for serious anglers
- 10,000 active track points and 700 saved track points; database information can be stored on removable data cards and transferred to a PC or another unit
- Sends, receives, and displays positioning data with DSC equipped VHF radios
- TracBack™ mode helps guide you back to points along a route
- Tracklines can be color-coded for trolling or cruising applications
- 500-watt (RMS) 4000-watt (PTP) output with dual-frequency transducer
- 400-watt (RMS) 3200-watt (PTP) output with single-frequency transducer
- Adjustable range, gain, zoom, and bottom lock
- Temperature log maintains a graphical record of temperature data
- Shallow-water, deep-water, fish-by-size, timer, low-battery-voltage, anchor-drag, arrival, off-course, proximity-waypoint, and clock alarms
- Water temperature and fish ID with depth alarms
Unit includes:
- GPSMAP 178C Sounder with built-in Worldwide Marine basemap
- Remote antenna with 30’ cable or integrated GPS sensor
- Single or dual-frequency transom mount transducer with temp
- Power/data cable
- 1-knob, adjustable tilt and swivel mount
- User’s manual
- Quick-start guide
We are required by Garmin to list their products at a MAP (Minimum Advertised Price)
VIT price can be found by clicking the "Buy" button - no purchase required
Stock # GA178C GPSMAP178C/Int Antenna/Single Freq M.A.P - $759.99 VIT 
Price
Stock # GA178CD GPSMAP178C/Int Antenna/Dual Freq Discontinued
Stock # GA178CX GPSMAP178C/Ext Antenna/Single Freq M.A.P - $779.99 VIT Price
Stock # GA178CDX GPSMAP178C/Ext Antenna/Dual Freq M.A.P - $799.99 VIT Price
Accessories:
Stock # GA0447 - Flush Mount Kit $ 17.95
MAPSOURCE - click here for a list of the MapSource CD's and memory cartridges.
GPSMAP 178C Color Chartplotter/Sounder
