Navlink

Core Features

• AIS Class B dual-channel VHF receiver (161.975 / 162.025 MHz)
• NAVTEX messages decoding (518 kHz / 490 kHz)
• DSC (ASN) distress signal detection on Channel 70
• HF Weather Fax image reception and decoding
• Bluetooth mobile app for real-time display and notifications
• Offline charts with live AIS overlay and message logs

Advanced Capabilities

• Real-time logging of GPS trajectory, SOG, COG
• Heel & roll monitoring with embedded IMU sensor
• Sailing mode detection based on wind, heading, speed, and heel
• Automatic logbook with GPS, radio events, alerts, and time sync
• Anchor watch mode with drift/motion detection via IMU

Race Mode & LoRa Networking

• Broadcast real-time telemetry over LoRa (433/868 MHz)
• Peer-to-peer communication between boats, no infrastructure required
• Display other boats' position, speed, heading in real-time
• Replay and analyze race tracks in the app (like Strava for sailing)
• Optional encrypted broadcast for privacy or competition mode

Race Mode Example

Live replay of a local regatta: 3 boats broadcasting their position over LoRa, visualized in real-time on the mobile app.

Hardware Highlights

• Waterproof IP65 enclosure with external VHF antenna (SMA)
• High-accuracy GPS and onboard IMU
• Ultra-low power ESP32 with BLE & OTA updates
• Rechargeable battery with optional solar panel integration
• Open-source firmware & upgradable features

Social & Community Features

Navlink is more than just a tool — it's a platform to connect, compare, and share with fellow sailors and racers.

• Create your profile and track your sailing activity over time
• Follow other boats and see their public race replays
• Like and comment on race sessions and maneuvers
• Join challenges or create private group regattas
• Rankings and badges for consistency, speed, and tactics

User Profile & Leaderboard Preview

@sailor.julie

La Trinité-sur-Mer, France

Races: 42

Fastest Leg: 9.3 kn

Avg Heel: 14.2°

Badges: 🥇 ⛵ 🧭

Weekly Leaderboard

#	Username	Distance (nm)	Top Speed
1	@windhunter	72.4	9.8 kn
2	@sailor.julie	69.1	9.3 kn
3	@regatta.luke	65.7	8.9 kn

Comments

@regatta.luke: Insane wind shift after buoy 2 🌬️

@sailor.julie: Heel record broken 😅 #holdfast

@windhunter: Smooth start — loved the upwind tactics!

Race Replay

Visualize your entire race with a dynamic timeline, synced GPS tracks, and tactical highlights.

Leg 2: Downwind Sprint

Race Timeline

T+00:00 T+18:34

Current Segment

COG: 152°, SOG: 5.4 kn

Heel: 10.3°, Wind Angle: 145°

Tactical Note

Perfect timing on jibe at mark 3 — gained 2 positions 🏁