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Garmin GPSMAP 178 with External Antenna and Dual Frequency Transducer

Garmin GPSMAP 178 with External Antenna and Dual Frequency Transducer
Item No.010-00363-02
Retail Price:$535.70
Our Price:$419.99
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 178 has everything you need in one space-saving package: GPS navigation, marine chartplotting, and powerful sonar. This combination chartplotter/sounder includes the same user-friendly interface as its color counterpart, the GPSMAP 178C, but sports a high-resolution monochrome display and a price that's within any mariner's budget.

The Garmin GPSMAP 178 provides brand-new technology for all of your chartplotting needs!

Easy to Use

The GPSMAP 178 packs a built-in worldwide marine basemap, state-of-the art processor with lightening-fast map redraw, and crisp, sunlight readable, 10-level grayscale display into a waterproof, space-saving console that is perfect for large crafts and small runabouts alike. Boaters will love its convenient, intuitive design including:

  • Simple keypad with backlighting for easy operation.
  • One knob, adjustable tilt and swivel mount so you can quickly pop it in and out.
  • Front loading data cards for easy access.

Outstanding Flexibility

Users can enhance basemap detail on the GPSMAP 178 by simply plugging in data cards preprogrammed with BlueChart or Fishing Hot Spots detail or downloading data from optional MapSource CDs to an optional Garmin data card. BlueChart provides exceptional offshore marine coverage that includes shaded depth contours, navaids, shoreline, and more. For inland boating and fishing, the U.S. Recreational Lakes with Fishing Hot Spots CD & preprogrammed data cards are packed with inland lake maps, profiles, marinas, fishing areas and useful outdoor resources.

Tailor to Your Needs!

The GPSMAP 178 is available with either a single or dual-frequency transducer making it the perfect companion for offshore or inland lake fishing. Boaters can choose dedicated full-screen map, full-screen sonar, split-screen map/sonar, compass, and navigational screens with customizable digital data fields for each page.

Easy to Read Screen:

  • 320 x 320-pixel, high-resolution, 10-level gray-scale FSTN LCD screen with adjustable CCFL backlight.
  • 3.2" W x 3.2" H (4.5" diagonal) viewing area.
  • 6.3" x 4.9" x 2.8 " (W x H x D) unit dimensions.

High-Powered Processor

State-of-the-art 200 MHz processor makes map redraw, panning, and zooming virtually instantaneous.

Expandable Memory

Accepts Garmin data cards for up to 128 MB of map storage.

Exceedingly Accurate

WAAS-enabled for accuracy to within 3 meters.

Double the Power!

High-powered dual-frequency 50/200 kHz transducer for offshore boating.

Discriminating Technology

See-Thru technology (which separates fish from thermoclines and structure) and Depth Control Gain (DCG) for detailed images of structure and bottom densities.

In-Depth Detail

New digital display technology offers an easy-to-read, semi-transparent digital readout that allows users to see sonar images "behind" the data.

Huge Waypoint Store

3000 user waypoints are automatically tagged with the date and time of creation, as well as water temperature and depth - vital information for serious anglers.

MOB and TracBack Features

Stores 50 reversible routes with up to 50 waypoints each, plus MOB and TracBack modes help guide you back to points along a route.

Unlimited PC Storage

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.

Digital Selective Calling Protects Privacy

Sends, receives, and displays positioning data with DSC equipped VHF radios.

High-Powered Transducer

500-watt (RMS) 4000-watt (PTP) output with dual-frequency transducer.

Fully Customizable Display

Adjustable range, gain, zoom, and bottom lock.

Climate Control

Temperature log maintains a graphical record of temperature data.

Is that a shark or a trout?

Water temperature and fish ID with depth alarms.

Fully Amphibious

Waterproof to IEC 60529 IPX7 standards (submersible in one meter of water for up to 30 minutes).

MapSource compatibility

Compatible with most MapSource products.

Package includes:

  • Package includes: GPSMAP 178 Sounder with built-in Worldwide Marine basemap.
  • Remote antenna with 30-foot cable.
  • Power/data cable.
  • 1-knob, adjustable tilt and swivel mount.
  • 500-watt (RMS) 4000-watt (PTP) output with dual-frequency 50/200 kHz transducer.
  • User's manual.

Garmin GPSMAP 178 Screen Shots:

Combined Map and Sounder View

View map and sounder information simultaneously.

On-Screen Chart Display

Optional BlueChart cartography includes depth contours, navaids, shorelines and more.

On-Screen Chart Display

BlueChart provides exceptional offshore marine coverage that includes shaded depth contours, intertidal zones, navaids, port plans, U.S. tide data, wrecks, restricted areas and more.

Inland Boating and Fishing

For inland boating and fishing, the U.S. Recreational Lakes with Fishing Hot Spots CD is packed with inland lake maps, profiles, marinas, fishing areas and useful outdoor resources.

Navigation Page

Graphic compass display provides speed, distance and steering guidance.

Distress Page

Sends out immediate signal for help to all available frequencies.

Sonar Page

Looks like good fishin' today!


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