Raymarine Wireless Mast Rotation Transmitter
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Raymarine Wireless Mast Rotation Transmitter Product Description
Enhance your sailing performance with the Raymarine T221 Wireless Mast Rotation Transmitter, a game-changer for boats equipped with rotating masts. High-performance yachts and racing vessels often feature wing masts that pivot to optimize sail trim, but this movement can skew wind data from traditional sensors. The T221 solves this by delivering precise compensation through Raymarine's reliable Micronet wireless network, ensuring your instruments always reflect true wind angles for superior decision-making on the water.
Why Sailors Choose the T221 for Unmatched Wind Accuracy
In competitive sailing, even a slight error in apparent wind angle (AWA) or true wind angle (TWA) can cost valuable seconds—or positions. The T221 integrates flawlessly with your Micronet ecosystem, using solar-powered intelligence to track mast rotation in real-time. Here's what sets it apart:
- Effortless Wireless Setup: No messy cabling up the mast—simply mount and pair via Micronet for instant connectivity.
- Self-Sustaining Power: Integrated solar panels charge the internal battery, keeping it operational through extended offshore passages or multi-day regattas without intervention.
- Rugged Marine Durability: Fully sealed against saltwater, UV exposure, and impacts, this lightweight unit demands zero maintenance and withstands the harshest conditions.
- Precision Calibration: Works with compatible Micronet displays featuring compass setup, allowing quick alignment to your boat's heading for spot-on corrections.
- Seamless System Integration: Pairs with Micronet Wind Transmitters and Hull Transmitters (with compass) to refine data across your entire instrument suite, from speed to tactical displays.
Whether you're chasing podium finishes in grand prix racing or fine-tuning for coastal cruising, the T221 elevates your wind intelligence, helping you sail faster and smarter.
How the Wireless Mast Rotation Transmitter Delivers Accurate Data
The magic lies in its smart sensing technology. Mounted near the mast base or gooseneck, the T221 captures rotation data using its own internal sensors. It cross-references this with the boat's primary compass heading from your Micronet network. By calculating the offset, it automatically adjusts incoming wind data from the masthead vane—eliminating errors caused by mast swing. The result? Crystal-clear true wind speed (TWS) and direction, optimized for polars, laylines, and VMG calculations that keep you ahead of the fleet.
Pro Tip: For best results, calibrate during calm conditions with the mast locked in a neutral position, ensuring your displays reflect the boat's magnetic variation accurately.
Simple Installation for Maximum Uptime
Designed for DIY sailors and pros alike, installation takes minutes. Secure the compact black housing with provided brackets—no drilling required on most setups. Power it up under sunlight, and it auto-joins the Micronet mesh network. Avoid shadowed spots to maximize solar efficiency, and position away from metal interference for optimal signal strength. Once online, your wireless instruments will prompt for the one-time compass-mast alignment, unlocking compensated wind feeds immediately.
Common Pitfall to Avoid: Ensure your network includes a compass-equipped Hull Transmitter, as it's essential for the rotation math.
Low-Maintenance Reliability You Can Trust
Built to last, the T221 thrives in marine environments with its IPX7 waterproofing and corrosion-resistant materials. Solar charging means no battery swaps, but periodic lens cleaning with fresh water prevents efficiency loss from salt buildup. Firmware updates via Micronet keep it cutting-edge, adapting to evolving sailing tactics without hardware changes.
Frequently Asked Questions
What boats benefit most from the Raymarine T221 Mast Rotation Transmitter?
High-performance sailboats with rotating or wing masts, such as IMOCA 60s, Class 40s, or custom yachts, where mast movement impacts wind sensor accuracy.
Is wiring required for the T221 installation?
No, it's fully wireless via Micronet technology, eliminating the need for mast wiring and simplifying retrofits on existing boats.
How does solar power perform in low-light conditions?
The internal battery provides backup for several days of overcast weather or night sailing, with solar recharging resuming automatically in light.
What Micronet components are needed alongside the T221?
A Micronet Wind Transmitter at the masthead, Hull Transmitter with compass, and a compatible display like the Tactic series for calibration.
Can the T221 improve racing performance?
Absolutely—precise true wind data enhances polar table lookups, start-line bias calls, and upwind VMG, giving racers a tactical edge.
Is the T221 suitable for non-racing cruising boats?
Yes, any boat with a rotating mast benefits from corrected wind for better autopilot performance and sail trim in varying conditions.
How do I calibrate the mast rotation sensor?
Use the compass setup menu on your Micronet display: Align the boat to a known heading, zero the mast, and let the system compute offsets automatically.
Powered by the sun and connected by Raymarine's wireless Micronet technology, the Wireless Mast Rotation Sensor accurately measures the movements of a rotating sailboat mast to provide compensating data to a connected wireless wind system. This ensures wind readings of the highest accuracy on high-performance sailing craft.
Raymarine T221 Attributes
- Compatibility: Raymarine Micronet Wireless Network Instruments
- Installation Type: Wireless
- Power Source: Built-In Battery With Solar Charging
- Waterproof: Yes
- Color: Black
Raymarine T221 Features & Benefits
- Compatible With Raymarine Wireless Instruments
- Built-In Solar Panels Keep An Internal Battery Pack Charged And Ready
- Wireless Micronet Networking For Easy, No-Wires Installation
- Fully Waterproof And Maintenance-Free Design
- Requires A Raymarine Micronet Display With Compass Setup Capability For Calibration
- Micronet Wind Transmitter And Hull Transmitter With Compass Transducer Required
- Limited 2 Year Warranty
Raymarine T221 Warranties
This unique transmitter compensates for the movement of a rotating mast to ensure that you get the most accurate wind readings at all times. Operating as a wireless device on a Micronet network the Mast Rotation Transmitter compares compass information from the boat with its own information and corrects the wind angle coming from a standard wind transmitter at the mast head.
Features:
- No wires
- Solar powered
- Light weight
This unique transmitter compensates for the movement of the rotating mast to ensure that you always get the most accurate wind speed reading. Run as a wireless device on
Frequently Asked Questions (FAQ) About Raymarine Wireless Mast Rotation Transmitter
Who is the Raymarine?How to describe Raymarine Wireless Mast Rotation Transmitter?
What's the color of Raymarine Wireless Mast Rotation Transmitter?
Is this product waterproof?
What is the compatibility of this product?
Who is the Raymarine?
How to describe Raymarine Wireless Mast Rotation Transmitter?
- Unique transmitter compensates for the movement of a rotating mast to ensure that you get the most accurate wind readings at all times.
- Operating as a wireless device on a Micronet network, the Mast Rotation Transmitter compares compass readings with an internal gyroscope to detect any movement.
- This information is then transmitted in real time to our monitoring center where it is logged and sent back to you in graph form.
- Eliminates the need for a rotating mast, which can be difficult to maintain.
- Wireless, so you can place it anywhere.
- Compares compass readings with a stationary transmitter to provide accurate wind readings.
- The only transmitter on the market that compensates for the movement of a rotating mast.
- Compares compass readings to wind readings for accurate data at all times.
- Operates as a wireless device on a Micronet network.
What's the color of Raymarine Wireless Mast Rotation Transmitter?
- Unique transmitter compensates for the movement of a rotating mast to ensure that you get the most accurate wind readings at all times.
- Operating as a wireless device on a Micronet network, the Mast Rotation Transmitter compares compass readings with an internal gyroscope to detect any movement.
- This information is then transmitted in real time to our monitoring center where it is logged and sent back to you in graph form.
- Eliminates the need for a rotating mast, which can be difficult to maintain.
- Wireless, so you can place it anywhere.
- Compares compass readings with a stationary transmitter to provide accurate wind readings.
- The only transmitter on the market that compensates for the movement of a rotating mast.
- Compares compass readings to wind readings for accurate data at all times.
- Operates as a wireless device on a Micronet network.
Is this product waterproof?
What is the compatibility of this product?
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Raymarine Wireless Mast Rotation Transmitter Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Raymarine |
| Weight: |
1.0 lb |
| User Guide: |
Raymarine Wireless Mast Rotation Transmitter User Reviews
Raymarine Wireless Mast Rotation Transmitter Shipping & Return
| Shipping Weight: |
1.0 lb |
|---|---|
| Box Sizes: |
4.00 (h) x 6.00 (w) x 9.00 (l) |
| Cubic Feet: |
216.0 |
| Returnable: |
Yes |
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