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Garmin GPSMAP 178C Sounder / Chartplotter with External Antenna (No Transducer) DISCONTINUED

Garmin GPSMAP 178C Sounder / Chartplotter with External Antenna (No Transducer) DISCONTINUED
Item No.010-00340-04
Retail Price:$579.99
Our Price:$494.04
ConditionNew Retail Box (NOT Refurbished)
ReturnableYes (See our Return Policy)
WarrantyTiger 30 Day, Manufacturer 1 Year
This item is currently out of stock


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 Chartplotter—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.

GPSMAP 178C Sounder 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
  • 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 External Antenna with 30 foot cable
  • Power/data cable
  • 1-knob, adjustable tilt and swivel mount
  • User’s manual
  • Quick-start guide
  • Compatible Transducers:

    010-10105-00 200KHz, 20deg, plastic, transom mount transducer, depth


    200KHz, 20deg, plastic, transom mount transducer, depth, temp, speed


    200KHz, 12deg, bronze, thru-hull mount transducer, depth


    200KHz, 12deg, plastic, thru-hull mount, depth


    200KHz, 14deg, plastic, trolling motor transducer, depth, temp


    200KHz, 12deg, bronze, thru-hull mount transducer, depth, temp


    200KHz, 12deg, plastic, thru-hull mount transducer, depth, temp


    200KHz, 14 deg, plastic, in-hull mount, depth


    200KHz, 20deg, plastic, transom mount, depth, temp


    200/50KHz, 12/45deg, bronze, thru-hull mount transducer, depth


    200/50KHz, 12/45deg, bronze, thru-hull mount transducer with fairing block, depth, temp, speed


    200/50KHz, 12/45deg, plastic, transom mount transducer, depth, temp, speed


    200/50KHz, 12/45deg, bronze, thru-hull mount/long stem transducer with fairing block, depth, temp, speed


    200/50KHz, 12/45deg, plastic, thru-hull mount transducer, depth


    200/50KHz, 15/45deg, plastic, transom mount, depth, temp


    200/50KHz, 12/45deg, plastic, adj. in-hull mount transducer


    Thru hull mount, plastic, temp & speed only

    178C Screenshots:

    By adding BlueChart or Recreational Lakes with Fishing Hot Spots data to the GPSMAP 178C, the unit's Map Page can display amazing detail for navigation.

    Even at high speeds (37.1 mph), the GPSMAP 178C holds bottom and shows standing timber.

    Unique, user-configured windows.

    Garmin's in-line flasher mode (to the right of the LCD) gives real-time feedback of fish and structure.

    Split-screen zoom shows submerged trees in greater detail.


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