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Garmin SteadyCast Heading Sensor
The Garmin SteadyCast Heading Sensor delivers a simple and effective heading solution for US marine networks, featuring a 10Hz output rate to ensure your chart orientation and radar overlay remain aligned.
- Update Rate: 10Hz Heading Output (10 times per second)
- Accuracy: Plus or Minus 3 Degrees
- Technology: MEMS-Based Magnetic Sensor
- Network Protocol: NMEA 2000 Certified (Micro-C)
- Calibration: Easy Interface-Based Magnetic Calibration
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Description
Garmin SteadyCast | NMEA 2000 High-Speed Heading Sensor
Optimize your radar overlay and chart orientation using the Garmin SteadyCast Heading Sensor, a high-frequency MEMS-based compass. This sensor provides a stable heading reference at a 10Hz update rate, ensuring your boat icon stays aligned with your actual course even when trolling, drifting, or operating in heavy currents where GPS-based COG data often fails to provide accurate orientation.
Designed for easy NMEA 2000 plug-and-play installation, SteadyCast effectively eliminates “chart spinning” on your MFD. Strategic placement away from magnetic interference sources like speakers or trolling motors is critical to maintaining its precision, providing the autopilot-quality heading data necessary for consistent navigational performance in coastal and offshore environments.
Technical Key Features
- 10Hz heading output rate for smooth display.
- NMEA 2000 interface for rapid networking.
- MEMS technology ensures solid-state reliability.
- Eliminates chart orientation “spinning” issues.
- Easy calibration via compatible Garmin MFDs.
- IPX7 waterproof rating for marine durability.
- Compact design allows for versatile mounting.
GARMIN SteadyCast Heading Sensor Specifications
| Instrument Type | Electronic Magnetic Heading Sensor (MEMS) |
| Mounting Type | Surface Mount (Orientation-Agnostic) |
| Heading Accuracy | ±3 Degrees |
| Update Rate | 10 Hz (10 Times per Second) |
| Networking/Interface | NMEA 2000 Certified (Micro-C) |
| Operating Voltage | 9V to 16V DC (via NMEA 2000) |
| Current Draw | LEN 2 (100mA @ 12V) |
| Calibration | User-initiated On-Water Calibration |
| Waterproof Rating | IPX7 Fully Waterproof |
| Operating Temperature | -15°C to +70°C Marine Grade |
| Weight | 0.17 kg (0.37 lbs) |
| Key Mechanical Feature | MEMS technology ensures stability in rough seas and high speed |
Garmin SteadyCast Heading Sensor Technical Guide
The SteadyCast is a high-frequency MEMS-based heading sensor that ensures your boat's bow orientation on your chartplotter matches your actual heading. This is particularly useful at low speeds or when drifting, where GPS alone cannot determine which way the boat is pointing.
By providing 10Hz heading output, it allows for smooth and accurate radar overlay on your charts. It also enables MARPA target tracking to function correctly, helping you identify and track the movement of other vessels with confidence.
Yes, the SteadyCast features plug-and-play NMEA 2000 connectivity. It can be mounted in almost any orientation, as long as it is placed away from significant magnetic interference like speakers or large iron engines.
While it is calibrated out of the box, it supports on-the-water calibration through compatible Garmin displays. This process accounts for local magnetic deviation within the boat, ensuring maximum heading accuracy of within 3 degrees.
While excellent for chart orientation and radar, it is not intended for autopilot steering. For autopilot systems, Garmin recommends their 9-axis Heading Sensor or Reactor CCU which includes more advanced rate-gyro technology.
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