The GPSMAP 178C Sounder is a new-generation fully integratedchartplotter and powerful sonar, offering the same brilliantsunlight-readable color LCD, powerful features,and simple interfaceas the GPSMAP 172C-all in a compact, value-pricedconsole thatleaves fish nowhere to hide.

It comes standardwith a built-inworldwide marine basemap and accepts MapSourceBlueChartr offshoremarine cartography-featuring detailed depthcontours, inter-tidalzones, wrecks, navaids, and many other points ofinterest. Forsmall-water anglers, the GPSMAP 178C Sounder iscompatible withMapSource Recreational Lakes with Fishing HotSpots-featuringfishing areas, boat ramps, marinas, and hazardsfor hundreds ofpopular U.S. and Canadian lakes. Pre-programmeddata cards can beeasily inserted into the slot on the front of theunit.

GPSMAP 178C Sounder Features

• 320 x 320-pixel, 256-color CSTN screen withadjustable CCFLbacklight
• 3.2" H x 3.2" W (4.5" diagonal) viewing area
• 4.9"H x 6.3"W x 2.8"D unit dimensions
• State-of-the-art 200 MHz processor makes dataacquisition,panning, and zooming virtually instantaneous
• Choose either a dual-frequency 50/200 kHztransducer foroffshore boating or a single-frequency 200 kHztransducer for inlandlakes and bays
• See-Thrur technology (which separates fishfrom thermoclines andstructure) and Depth Control Gain (DCGr) fordetailed images ofstructure and bottom densities
• New digital display technology offers an easy-to-read,semi-transparent digital readout that allows users to see sonarimages "behind" the data
• User waypoints are automatically tagged withthe date and timeof creation, as well as water temperature anddepth-vitalinformation for serious anglers
• 10,000 active track points and 700 saved track points; databaseinformation can be stored on removable data cardsand transferred toa PC or another unit
• Sends, receives, and displays positioning data with DSC equippedVHF radios
• TracBackT mode helps guide you back to pointsalong a route
• Tracklines can be color-coded for trolling orcruisingapplications
• 500-watt (RMS) 4000-watt (PTP) output withdual-frequencytransducer
• 400-watt (RMS) 3200-watt (PTP) output withsingle-frequencytransducer
• Adjustable range, gain, zoom, and bottom lock
• Temperature log maintains a graphical recordof 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 depthalarms