PRE OWNED FURUNO FCV-668 FURUNO FCV-668 MARINE ECHO SOUNDER

The Furuno FCV-668 is a 6-inch color CRT video sounder that excels in providing a vivid, 8-color presentation of underwater conditions. It is engineered with a potent 300W transceiver that delivers deep penetration and clear target separation. The system is particularly noted for its high-resolution display and its ability to switch between 8-color mode and a yellow monochrome mode for high-contrast viewing in direct sunlight.

With its "AUTO" function, the FCV-668 allows for unattended operation by automatically selecting the optimal range and gain settings based on the current water depth. This makes it an ideal tool for navigators who need to focus on vessel handling while still receiving accurate, real-time depth and fish school data. Its multiple zoom modes—including Bottom-Lock and Marker Zoom—provide detailed views of the seabed, which is essential for identifying bottom-dwelling species and underwater structures.

TECHNICAL SPECIFICATIONS

-- Model: FCV-668

-- Manufacturer: Furuno Electric Co., Ltd. (Japan)

-- Display Unit: 6-inch High-Resolution Color CRT

-- Transceiver Power: 300 W (RMS)

-- Frequency: 50 kHz or 200 kHz (Model dependent)

-- Range Scales: 8 scales from 15 to 1,000 feet (Basic range)

-- Phasing: Manual stepped range phasing up to 2,000 feet

-- Display Modes: Normal, Marker Zoom, Bottom-Lock Expansion, Bottom Zoom, Nav Data

-- Supply Voltage: 12V to 24V DC (Universal 11-30V DC)

-- Power Consumption: 30 W (Maximum)

-- Color Presentation: 8-color or 8-level amber/monochrome

-- Alarms: Fish, Bottom, Water Temperature (requires optional sensor)

-- Dimensions: Compact splash-proof plastic case

KEY FEATURES & APPLICATIONS

-- Full Automatic Operation: Includes "AUTO 1" (Fishing) and "AUTO 2" (Cruising) modes. These modes manage gain and range automatically so the bottom echo always remains visible on the lower half of the screen.

-- A-Scope Presentation: Provides a real-time side-bar view of the echo strength, allowing for rapid fish detection and immediate identification of bottom hardness.

-- Bottom-Lock Expansion: Flattens the seabed on the display to make fish schools and reefs near the bottom stand out more clearly, a vital feature for bottom-trawlers.

-- Integrated Nav Data Display: When connected to a GPS or Speed Log via NMEA 0183, the unit can display position (Lat/Lon), speed, and water temperature in both graphic and alphanumeric formats.

-- Built-in Simulator: Allows the crew to practice using the unit’s features and menu settings while the vessel is at port or in transit without active sounding.

-- Rugged Construction: Specifically designed to withstand the vibrations and environmental stresses of commercial fishing operations.

TYPICAL CONDITION (USED/REFURBISHED)

Our refurbished FCV-668 units from the Alang recycling yards are subject to a detailed electrical and mechanical overhaul. We verify the CRT Tube for brightness and focus, ensuring the colors are vivid and free from screen burn. The Processor Board is tested for accurate range switching and NMEA data parsing. We also inspect the Matching Box (MB-502/504) and the transducer connector for corrosion-free performance. Each unit is bench-tested with a frequency analyzer to ensure the 300W output is stable and the sensitivity is within factory specifications.

COMPATIBLE BRAND MODELS:

Furuno FCV-668, Furuno FCV-667, Furuno FCV-628, Furuno FCV-688, Furuno FCV-582, Furuno FCV-585, JRC JFE-570, JRC JFE-380, Koden CVS-126, Koden CVS-128, Tokimec ES-series.

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