Garmin GPSMAP 178C

GPSMAP 178C Sounder features

320 x 320-pixel, 256-color CSTN screen with adjustable CCFL backlight
3.2" H x 3.2" W (4.5" diagonal) viewing area
4.9”H x 6.3”W x 2.8”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

Package includes:

GPSMAP 178C Sounder with built-in Worldwide Marine basemap
Remote antenna with 30’ cable or integrated GPS sensor
Power/data cable
1-knob, adjustable tilt and swivel mount
User’s manual
Quick-start guide