Raymarine DSM 300 Fishfinder Module

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"Black Box" Digital Sounder Module with HD Digital Technology.

Digital Sounder Module adds HD Digital technology to Raymarine E-Series and C-Series multifunction displays
* 600 or 1000 Watt operation depending on choice of transducer
* Dual frequency 50/200 kHz
* Patented Raymarine HD Digital sounder technology

Echo Sounder Features

* Dual frequency operation (200/50 kHz)
* 1000 or 600 watt available output power depending choice of transducer
* HD Digital 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.
* White Line: The White line feature helps distinguish between fish and the bottom, when fish are swimming close to the bottom.