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The JMC F-2000 Echo Sounder is a dual-frequency IMO-compliant navigation echo sounder designed for commercial vessels and SOLAS ships, providing accurate under-keel depth measurement and seabed profiling.
It is a mid-generation digital echo sounder, widely used due to its reliability, simple operation, and full compliance with IMO standards.
The F-2000 operates by:
| Parameter | Specification |
|---|---|
| System Type | IMO-compliant digital navigation echo sounder |
| Display Type | 8-inch color TFT LCD (VGA) |
| Display Resolution | ~640 × 480 pixels |
| Echo Presentation | Multi-color echogram + digital depth |
| Frequency | 50 kHz / 200 kHz (standard) |
| Optional Frequencies | 33 kHz, 38 kHz, 100 kHz, 135 kHz |
| Operation Mode | Automatic / Manual |
| Depth Range | 5 m to 1000 m (8 selectable ranges) |
| Minimum Depth | 0.5 m (200 kHz), 1 m (low freq.) |
| Depth Accuracy | ±0.5 m (shallow), ±5 m (deep range) |
| Output Power | Up to 1 kW RMS (4 steps adjustable) |
| Beam Width | Depends on transducer (wide at low freq, narrow at high freq) |
| Pulse Length | Automatic / adjustable |
| Sounding Rate | 120 – 30 soundings per minute |
| Gain Control | Automatic / Manual |
| TVG (Time Variable Gain) | Automatic / Manual |
| Range Selection | Automatic / Manual |
| Echo Dynamic Range | 3, 4, 5, 6 dB levels |
| Noise Reduction | 3 levels (low / medium / high) |
| Display Modes | Real-time echo, history replay |
| History Display | Approx. 20 minutes on screen |
| Data Storage | Up to 24 hours (non-volatile memory) |
| Playback Function | 15 min, 1 hr, 3 hr, 6 hr, 12 hr, 24 hr |
| Echogram Feed Rate | 3 selectable speeds |
| Background Colors | Dark blue, black, white |
| Alarm Functions | Shallow depth, bottom loss, low voltage, power failure |
| Interfaces | NMEA 0183 (IEC 61162), RS-232, RS-422 |
| Printer Interface | Centronics parallel (echo printing) |
| Inputs | GPS, temperature sensor (optional) |
| Outputs | Depth data (DBT / DPT), alarm signals |
| Power Supply | 11–40 V DC or 110–220 V AC |
| Power Consumption | ~17 W (DC), ~20 VA (AC) |
| Operating Temperature | −15°C to +55°C |
| Storage Temperature | Down to −40°C |
| Humidity | Up to 95% (non-condensing) |
| Dimensions | ~224 × 224 × 102 mm |
| Weight | ~3.4 kg (with bracket) |
| System Configuration | Display + transceiver + transducer |
| Optional Equipment | Remote display, GPS sensor, temperature sensor |
| Compliance | IMO MSC.74(69), MED approved |
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