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Garmin GPSMAP 178C with External Antenna and Single Frequency Transducer DISCONTINUED

Garmin GPSMAP 178C with External Antenna and Single Frequency Transducer DISCONTINUED
Item No.010-00340-00
Retail Price:$599.99
Our Price:$502.41
ConditionNew Retail Box (NOT Refurbished)
ReturnableYes (See our Return Policy)
WarrantyTiger 30 Day, Manufacturer 1 Year
This item is currently out of stock


NOTE: This item has been discontinued by Garmin. Check out the GPSMAP 440s (click here), with updated networking capability and a pre-loaded coastal charts.

Looking for a new Garmin GPS and/or Sonar system? Click here to find one.

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
  • Choose either a dual-frequency 50/200 kHz transducer for offshore boating (click here) or a single-frequency 200 kHz transducer for inland lakes and bays (this page)
  • 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
  • External Remote Antenna with 30 foot cable
  • Single-frequency Transom Mount 200 kHz transducer
  • Power/data cable
  • 1-knob, adjustable tilt and swivel mount
  • User’s manual
  • Quick-start guide
  • 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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