GPSMAP® 178C Sounder

Part Number: 010-00340-00
£484.25
Processing time is 1–3 business days.

Overview

Venture offshore with the GPSMAP 178C Sounder and its counterpart, the GPSMAP 172C. With a built-in sounder and worldwide marine basemap, the 178C is ready to handle any fishing adventure.

Chart Your Course

The GPSMAP 178C features a built-in worldwide marine basemap and accepts BlueChart® offshore marine cartography, featuring detailed depth contours, inter-tidal zones, wrecks, navaids, and many other points of interest. You can use compatible preprogrammed data cards, which insert easily into the slot on the front of the plotter.

Catch Some Fish

The 178C comes with a built-in sounder with Garmin’s exclusive See-Thru® fish targeting technology. 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.

GPSMAP 178C Sounder: Leaves fish with nowhere to hide

WAAS enabled BlueChart compatible Marine Updater

Specs

PDF Download detailed specs

Physical & Performance

Physical dimensions 6.3" x 4.9" x 2.8" (16.0 x 12.5 x 7.1 cm)
Display size, WxH 3.2" x 3.2" (8.1 x 8.1 cm)
Display resolution, WxH 320 x 320 pixels
Display type 256-color CSTN
Weight 1.2 lb (553 g)
Water rating IPX7
Receiver GPS Receiver
Antenna Internal with external connection
Mounting options Bail with Swivel or Flush
Power consumption 8 watts max at 13.8 vDC

Maps & Memory

Preloaded maps No
Accepts data cards 1 Garmin Data Card
Waypoints 3,000
Routes 50
Track log 10,000 trackpoints

Features & Benefits

Garmin Radar compatible No
Garmin Sonar compatible Yes
NMEA 2000® compatible No
NMEA 0183 compatible Yes
Garmin Marine Network™ compatible No
Garmin SmartMode compatible (customizable monitor presets) No
Supports AIS (tracks target ships position) No
Supports DSC (displays position data from DSC-capable VHF radio) Yes
Tide tables Yes
Garmin Meteor Audio System compatible No
Supports Fusion Lync compatible marine radios No
GSD™ Black Box sonar support No
GCV™ Black Box sonar support No
SiriusXM™ Weather & Radio compatible No
BlueChart® Mobile (planning) compatible No
Garmin Helm compatible No
GRID™ (Garmin Remote Input Device) compatible No
Wireless remote compatible No
Wireless mouse compatible No

Sonar Features & Specifications

Dual-frequency (50/200 kHz) sonar capable Yes
Dual-beam (77/200 kHz) sonar capable No
Frequencies supported 50/200 kHz
Transmit power 500 W (RMS), 4,000 W (peak to peak)
CHIRP sonar technology No
DownVü™ No
SideVü™ No
Voltage range 10-35 Vdc input
Maximum depth 900 ft
Bottom lock (shows return from the bottom up) Yes
Water temperature log and graph Yes
Sonar recording No
Sonar history rewind No

Connections

NMEA 0183 input ports 2
NMEA 0183 output ports 2
Video input ports None
Video output ports None
Wireless connectivity No
Garmin Marine Network™ ports None

In the Box

  • GPSMAP 178C Sounder
  • Basemap: Worldwide Marine
  • Internal or external antenna
  • Transom-mount transducer (optional)
  • Swivel mount bracket
  • Protective front cover
  • Power/data cable
  • Owner's manual
  • Quick reference guide

Maps

Maps for New Regions

Need maps for other regions? See all maps that are compatible with this device.

Need a map update?

Update the maps that came with your device for the best navigation experience.

Check for Updates

Accessories

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