GPSM178CED Garmin 1199.00  

Garmin GPSMAP 178C (External Antenna) (GPSM178CED)

Garmin Part Number: GPSM178CED

Garmin GPSMAP 178C (External Antenna)
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  • Bright, sunlight-readable colour display
  • Includes pacific marine basemap
  • Inlcudes built-in sounder with Garmin's exclusive See-Thru® fish targeting technology
The GPSMAP 178C features a built-in pacific marine basemap and accepts BlueChart® offshore marine cartography, featuring detailed depth contours, inter-tidal zones, wrecks, navaids, and many other points of interest.

The GPSMAP 178C is a combination GPS and dual frequency (50/200kHz) fishfinder. The sounder features adjustable range, gain, zoom and bottom lock. It also has new digital display technology that offers an easy-to-read, semi-transparent digital readout so you can see sonar images "behind" the data.

The built-in sounder features Garmin's exclusive See-Thru® fish targeting technology, leaving the fish with nowhere to hide.

GPSMAP 178C Screenshots

GPSMAP 178C Screenshot GPSMAP 178C Screenshot GPSMAP 178C Screenshot
Click for larger images & more information.
Dimensions (W x H x D): 16.0 x 12.5 x 7.1 cm (6.3" x 4.9" x 2.8")
Display Size (W x H): 8.1 x 8.1 cm (3.2" x 3.2")
Display Resolution (W x H): 320 x 320 pixels
Display Type: 256-colour CSTN
Weight: 553 g (1.2 lb)
Waterproof: Yes (IPX7)

Maps & Memory
Basemap: Yes
Preloaded Maps: No
Ability to Add Maps: Yes
Accepts Data Cards: Garmin data cards
Waypoints/favourites/locations: 3,000
Routes: 50

CANet® Compatible: No
Supports AIS (tracks target ships' position): No
Supports DSC (displays position data from DSC capable VHF radio): Yes
Audible Alarms: Yes
Tide Tables: Yes
Sun & Moon Information: Yes
3-D Map View: No
Dual-frequency Sonar Capable: Yes
Dual-beam Sonar Capable: No
Split-screen Zoom: Yes
Split-screen Sonar/GPS: Yes
Ultrascroll™ (displays fish targets at higher boat speeds): No
See-thru® Technology (exposes fish hidden in cover): Yes
Fish Symbol ID (helps identify fish targets): Yes
AutoGain Technology (minimizes clutter, maximizes targets): No
Whiteline (indicates hard or soft bottom): Yes
Adjustable Depth Line (measures depth of underwater objects): Yes
A-scope (real time display of fish passing through transducer beam): No
Bottom Lock (shows return from the bottom up): Yes
Water Temperature Log & Graph: Yes
Water Temperature Sensor Included: No

Frequency: 200 kHz
Transmit Power: 400 W (RMS), 3200 W (peak to peak)
Voltage Range: 8-35
Maximum Depth: 900 ft
Cone Angle: 20 degrees

Specifications are provided as a guide only, and are subject to change without notice.
Package Includes:

  • GPSMAP 178C Sounder
  • Pacific Marine Basemap
  • External Antenna
  • Swivel Mount Bracket
  • Protective Front Cover
  • Power/data Cable
  • Owner's Manual
  • Quick Reference Guide

Compatible Accessories



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    Garmin GPSMAP 178C (External Antenna) (GPSM178CED)