Koden KGP-900 GPS UNIT WITH ANTENNA UNIT BA-03L 3002845

Koden KGP-900 GPS UNIT WITH ANTENNA UNIT BA-03L 3002845

The Koden KGP-900 is a high-performance, professional-grade GPS navigation unit designed for demanding marine and land-based applications where reliability and precision are critical. When paired with the compact and sensitive BA-03L antenna unit, it forms a complete, robust positioning system ideal for commercial vessels, workboats, survey projects, and as a position source for integrated bridge systems (IBS) and electronic chart display and information systems (ECDIS).

This specific model (often identified by part number 3002845) is known for its rugged construction and exceptional accuracy.

Key Features & Benefits

• High-Accuracy Positioning: Utilizes advanced GPS technology to provide reliable, real-time position, speed, and course-over-ground (COG) data. It supports SBAS (Satellite-Based Augmentation System like WAAS, EGNOS, MSAS) for improved accuracy, typically achieving positions within 2-3 meters.

• Rugged & Reliable Design: Built to withstand the harsh marine environment. The receiver is typically housed in a robust, water-resistant or drip-proof case, ensuring long-term operation in salt, spray, and humidity.

• Compact & Integrated System: The system comprises two main units: the main KGP-900 processing unit and the separate BA-03L antenna. This modular design allows for flexible installation, placing the processor in a protected location while the antenna has a clear view of the sky.

• Fast Position Fix & Re-acquisition: Features a high-sensitivity receiver for quick start-up (hot, warm, and cold start capabilities) and rapid re-acquisition of satellite signals, even after signal loss in challenging conditions.

• NMEA 0183 Data Output: Provides standard NMEA 0183 serial data sentences (such as GGA, GLL, RMC, VTG, etc.), making it universally compatible with a wide range of marine equipment including radar, chart plotters, AIS, gyrocompasses, and autopilots.

• Simple and Clear Interface: The main unit typically features LED indicators for easy status monitoring (power, fix, alarm) without a complex display, emphasizing its role as a dedicated sensor.

Technical Specifications

KGP-900 GPS Receiver Unit:

• Channels: 12-channel parallel tracking (or similar, depending on vintage).

• Accuracy:

  • Position: < 3m (with SBAS)

  • Velocity: 0.1 knots

• Update Rate: 1 second.

• Datum: WGS-84 (standard, selectable to others).

• Data Interface: NMEA 0183 version 2.0 or higher.

• Input Voltage: Typically 10.8 – 33.6 VDC, suitable for both 12V and 24V vessel electrical systems.

• Construction: Robust metal case, designed for marine use.

• Indicators: LED indicators for Power, 3D Fix, and Alarm.

BA-03L GPS Antenna Unit:

• Type: Active GPS patch antenna with built-in preamplifier.

• Cable: Integrated low-loss coaxial cable with a connector for easy attachment to the KGP-900 receiver. Cable length is typically 10 meters (33 feet).

• Construction: Waterproof and rugged housing designed for permanent mast or roof mounting.

• Connector: Standard TNC or BNC connector.

System Performance:

• Start-up Time:

  • Cold Start: < 50 seconds

  • Warm Start: < 45 seconds

  • Hot Start: < 10 seconds

• Re-acquisition Time: < 2 seconds.

Typical Applications

• Primary GPS Sensor for commercial ship bridge systems.

• Position Source for ECDIS (Electronic Chart Display and Information System).

• Integration with Radar, AIS (Automatic Identification System), and VDR (Voyage Data Recorders).

• Heading and Navigation Data for integrated autopilots.

• Precision Positioning for hydrographic survey and scientific data collection.