Key facts
- Brand
- JRC
- Model
- JFE-380
- Category
- Other Electronics
- Documents
- 3
- Languages
- EN
- Last added
- 2026-11-10
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JRC JFE-380 Echo Sounder User Manual
The JRC JFE-380 Echo Sounder is a marine navigation device designed to provide seabed displays and digital depth readings in accordance with IMO performance standards. The equipment includes a main display unit and a transducer, with specific installation requirements for the transducer depending on the model (e.g., NKF-341, NKF-392C).
The manual covers basic operations such as turning the power on/off, adjusting gain and range, and selecting display modes including Standard, History, and Docking. It also details menu settings for noise suppression, interference rejection, and alarm configurations, as well as initial setup procedures for memory length and cursor display.
JRC JFE-380 specifications
| Display | 6.5-inch color LCD, 480 x 640 pixels |
|---|---|
| Frequency | 200 kHz, 50 kHz |
| Output power | 200 kHz: 1 kW; 50 kHz: 500 W |
| Range | 10, 20, 50, 100, 200, 500, 800 m |
| Depth accuracy | ±2.5% |
| Minimum sounding depth | 1 m (200 kHz), 2 m (50 kHz) |
| Presentation mode | Standard, history, docking |
| Power supply | DC 24 V (+30%/-10%, for power fail alarm only); AC 100-115 V to 200-230 V AC ±15%, 50/60 Hz ±5% |
| Power consumption | ≤20 W |
| Water resistance | Display IPX5, connection box IPX2 |
| Operating temperature | -15° to 55°C |
All JRC JFE-380 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What display does the JFE-380 use?
It uses a 6.5-inch color LCD with 480 by 640 pixels.
What frequencies and output power does the JFE-380 support?
It supports 200 kHz and 50 kHz, with 1 kW output at 200 kHz and 500 W at 50 kHz.
What are the display modes available on the JFE-380?
The available display modes are Standard mode (dual frequency), History mode, and Docking mode.
What is the purpose of the STC function?
STC (Sensitivity Time Control) is used to reduce shallow water clutter by controlling sensitivity to normalize seabed echo.
What is the JFE-380 Echo Sounder used for?
It enables seabed displays and digital depth displays.
What is the mass of the NKF-341 transducer?
The mass is 41kg.