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FOREWORD
Thank you for purchasing the CH-300 Dual-Frequency Searchlight Sonar. We are confident
you will discover why FURUNO has become synonymous with quality and reliability.
Dedicated in the design and manufacture of marine electronics equipment for half a century,
FURUNO Electric Company has gained an unrivaled reputation as a world leader in the
industry. This is the result of our technical excellence as well as our worldwide distribution
and service network.
Please carefully read and follow the safety information and operating and maintenance
instructions set forth in this manual before attempting to operate the equipment and conduct
any maintenance. Your sonar will perform to the utmost of its ability only if it is operated and
maintained in accordance with the correct procedures.
Features
The CH-300 is a dual-frequency searchlight sonar. Consisting of a monitor unit, control unit,
transceiver unit and hull unit, it displays underwater objects on the monitor of choice, in 8 or
16 colors according to received echo strengths.
The main features are
• Horizontal and vertical section modes for detecting, searching, tracking and monitoring
fish school.
• 12 display modes for virtually any fishing application.
• Mix mode discriminates small fish.
• Fish or bottom echo can be displayed in white to distinguish bottom fish.
• Hull unit automatically raises the transducer when ship’s speed exceeds prescribed
speed.
• User-programmed function keys provide one-touch access to desired function.
• Two types of target lock for effective tracking of fish school.
• Digital display of position, speed, course, water temperature, depth, tide speed and
direction. (Requires appropriate sensors.)