See All The Fish You Have Been Missing

Constantly adjusting transmitter and receiver parameters, the L770D with HDFI technology intelligently analyzes fish and bottom echoes and automatically produces a crystal clear echo sounder display. An amazing technology breakthrough, HDFI echo sounders from Raymarine deliver exceptional clarity and detail that cannot be matched by conventional fishfinders.

Daylight Viewable Color

The L770D combines HDFI echo sounder performance with a Raymarine's High Brightness daylight viewable color display technology.

L770D Integration

The L770D and L770DRC are both SeaTalk and hsb2 compatible for full seamless integration with Raymarine gear. Simply connect another echo sounder, Raychart ,or Pathfinder Radar display and you have created an on board system like no other. Enjoy full control of the radar, echo sounder and chartplotter from either display.

The L770D is supplied with the remotely mounted DSM250 Digital Sounder Module

L770D Echo Sounder Features

• Dual frequency operation (200/50 kHz)
• 1000 or 600 watt available output power depending choice of transducer
• HDFI Auto Adaptive Gain control (no adjustment required)
• Patent Pending Digitally Adaptive Transmitter Receiver with infinite receiver bandwidth settings and digital filter
• A-Scope (Real-Time Display): Split second real time representation of fish and bottom features passing through the beam of your transducer right now, the history of your A-Scope is represented in the standard sounder image scrolling across your screen.
• Zoom Display: Auto or manual zoom magnification of any part of the 200 or 50 kHz fishfinder screen image, (X 2, X4 or X6 magnification).
• Bottom Lock: The bottom lock feature, shows the bottom as a straight line, in order to help you detect fish close to the bottom and remove wave action from the fishfinder image.
• Full Screen or Split screen display: All fishfinder display functions can be shown in full page screen mode, or split horizontally or vertically with other functions, such as chartplotter, waypoint 3D steering indicator, large character depth/temp/speed digit readout, etc.
• White Line: The White line feature helps distinguish between fish and the bottom, when fish are swimming close to the bottom.
• Depth Temperature Graph: Plots depth and temperature changes over time.