KODEN, CVS-126 ECHOSOUNDER

The Koden CVS-126 is a compact digital echo sounder (fish finder) designed for small to medium fishing boats, offering reliable depth measurement and fish detection in both shallow and moderately deep waters.

It combines simple operation, clear sonar imaging, and professional-grade performance, making it suitable for both beginners and commercial users.

⚙️ Key Description & Features

🎯 High-performance fish detection

Uses advanced digital signal processing (DSP) for:
- Clear target separation
- Better fish detection
- Reduced noise and clutter

👉 This helps distinguish:

Fish vs seabed
Small baitfish vs large fish schools

📡 Dual-frequency operation

Works on 50 kHz (deep water) and 200 kHz (shallow water)
Allows flexible operation depending on fishing depth

Technical Specification

Category	Specification
Display	5.7-inch Color LCD
Resolution	320 × 240 pixels (QVGA)
Color Levels	64 / 16 / 8 colors + monochrome
Output Power	600 W (RMS)
Frequency	50 kHz / 200 kHz (Dual frequency)
Operating Mode	Single or alternating frequency
Depth Range	2.5 m – 800 m (10 – 2800 ft)
Zoom Range	1 m – 200 m
Units	m / ft / fathom / Italian fathom
Digital Processing	Koden Digital Filtering (KDF™)
Fish Detection	Fish size indication, detection area display
Audio Feature	Sona-Tone™ (audible fish detection)
Display Modes	Normal, zoom, bottom lock, bottom zoom, A-scope
Noise Control	Interference rejection, noise reduction
Bottom Function	White line (bottom separation)
Memory	Up to 10 screenshots
Navigation Support	GPS input (optional), simple plotter
Interface	NMEA 0183 (Ver. 1.5 / 2.0 / 3.0)
Alarms	Fish, bottom, temperature, speed
Power Supply	10.8 – 31.2 V DC
Power Consumption	≤ 10 W
Waterproof Rating	IPX5
Dimensions (W×H×D)	208 × 182 × 130 mm
Weight	~1.3 kg
Operating Temperature	-15°C to +55°C
Transducer	Dual frequency (50/200 kHz), often optional