The AMI-GFV KW950-E, the industry’s most flexible solution for gyro interfacing and data conversion. Designed to solve complex integration challenges that other units cannot, this British-made device acts as a digital heading repeater, protocol converter, and course recorder. Whether you need to interface legacy gyros with modern ECDIS, convert stepper signals to NMEA 0183, or add a redundant digital heading display, the KW950-E delivers unparalleled reliability in a compact DIN-rail enclosure.
Key Features
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Universal Input Compatibility: Interfaces with virtually every gyro type, including 6-step stepper (DC & raw rectified), 360:1 Synchro (up to 115v), M-Type step, NMEA 0183, and even proprietary Robertson & Anschutz Coursebus data .
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Dual NMEA 0183 Outputs: Converts legacy signals to modern
$HEHDT(True Heading) and$HEROT(Rate of Turn) for seamless integration with Radar, ECDIS, VDR, and AIS systems . -
Built-in Course & Data Recorder: Fulfills regulatory requirements without expensive paper spools. Prints time, position, heading, rudder angle, speed, and course over ground directly to a standard low-cost printer .
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Multi-Function Capability: Beyond heading, it processes Speed Log (pulse or NMEA), Echo Sounder depth data, Shaft/Engine RPM, and Rudder Angle .
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Robust Marine Design: Housed in a flame-retardant DIN 43700 case with pluggable terminal blocks for easy installation. Operates on 10-32V DC power .
Technical Specifications
| Specification | Details |
|---|---|
| Display | 4-digit red LED (0.6″/15mm high), 32-step adjustable illumination |
| Heading Input | Stepper (4-90V DC), Synchro (50-115V ref), NMEA 0183, Robertson SKR80 |
| Data Input 2 | NMEA 0183 (GPS: RMC, GGA, VTG, ZDA) |
| Output Format | NMEA 0183 (RS422/CMOS), 4800 baud (default) |
| Speed Log Input | 100/200/400 pulses per mile, NMEA VBW/VHW |
| Echo Sounder | Start/Stop pulse (5-30V), outputs NMEA SDDPT/SDDBT |
| RPM Input | Pulse or AC waveform (5-30V), up to 6000 RPM |
| Power | 10-32V DC (5 Watts) |
| Dimensions | 144mm (W) x 72mm (H) x 142mm (D) |
| Approvals | IEC 60945 |
Product Applications
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Retrofit Projects: Connect old analog gyros to modern digital ECDIS displays.
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Survey Vessels: High-precision NMEA output for dynamic positioning and data logging.
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Workboats & Tugs: Reliable rate-of-turn bar graph and steering repeater functionality.
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Bulk Carriers & Tankers: Low-cost replacement for mechanical course recorders.



















