Garmin GPSMAP 498C Sounder Features

• 256-color TFT display, 4.0” H x 3.0” W, 5.0-inch diagonal, 320 x 240 pixels
• CCFL backlight for display and keypad
• Ultra-dim backlight for nighttime operation with user programmable levels for day and night
• Unit dimensions: 6.3” H x 6.3” W x 3.3” D (external antenna), 7.1” H x 6.3” W x 3.1” D (internal antenna)
• Power output: 500 watts (RMS) 4000 watts (peak to peak), dual frequency 400 watts (RMS) 3200 watts (peak to peak), dual beam Depth: 1,500 feet (dual frequency), 900 feet (dual beam)
• Transom mount transducer: 50kHz (45 degree), 200kHz (15 degree), dual frequency
• 80kHz (60 degree), 200kHz (20 degree), dual beam
• Built-in, highly detailed BlueChart g2 marine cartography of the coastal United States—including Alaska and Hawaii. This data provides detailed coastlines, shaded depth contours, navaids, port plans, wrecks, restricted areas, real-time tide and current information, and 3D perspective
• CANet proprietary bus allows display and control of full-feature sounder data supplied from Garmin sounder
• New sounder design featuring excellent shallow water performance
• Ultra scroll; user adjustable
• Adjustable range with automatic display re-scaling of picture
• See-Thru technology: shows weak and strong returns simultaneously
• Depth Control Grain (DCG): automatically adjusts fishfinder sensitivity according to depth
• Power down backup of settings: customer settings are not lost when the unit is turned off
• Pre-loaded with over 15 user-interface languages
• Water temperature log and graph
• Round flasher display mode
• A-scope
• Whiteline
• Adjustable depth line
• 2X and 4X Automatic and manual zoom
• Water speed capable
• Odometer
• Adjustable keel offset
• Alarms for fish size, shallow water, deep water, and battery voltage
• Battery voltage indication
• Detailed fish arches