APM 2.8 3DR Radio Telemetry Module — 915 MHz, 500 mW📡

The APM 2.8 3DR Radio Telemetry module delivers a reliable long-range wireless data link between your APM 2.6/2.8 or Pixhawk flight controller and a ground station computer. Designed for the 915 MHz ISM band, it provides a transparent serial link over TTL-UART, making it ideal for UAVs, robotics, and embedded systems. With 25% Forward Error Correction (FEC) and an air data rate up to 250 kbps, this module offers robust performance for engineers and hobbyists working with Arduino, Raspberry Pi, and other microcontroller-based projects.

✅ Key Features

• 915 MHz ISM-band operation for long-range telemetry 📶
• Adjustable RF output power with robust link performance (see specifications) ⚡
• Transparent serial link (TTL-UART) for easy integration with Arduino, Raspberry Pi, and flight controllers 🔌
• 25% FEC (Forward Error Correction) for improved reliability in noisy environments 🛡️
• Air data rate up to 250 kbps for fast telemetry and control updates 🚀
• RP-SMA antenna connector for standard antenna options 📡
• LED indicators for link and status feedback 💡

⚙️ Technical Specifications

• Frequency: 915 MHz
• Antenna Connector: RP-SMA
• Output Power: 500 mW (listing), adjustable 1–20 dBm (per provided spec)
• Sensitivity: −117 dBm
• Interface: TTL-UART (transparent serial link; standard logic voltage levels)
• Indicators: LED status indicators

🔗 Compatibility & Applications

Seamlessly integrates with APM 2.6/2.8 and Pixhawk controllers, ground control software, and embedded systems. Suitable for a wide range of electronics components and modules projects requiring a dependable wireless serial link.

• UAV/drone telemetry for planes, multirotors, and rovers 🚁
• Remote sensing, robotics, and autonomous systems 🤖
• Ground control station links for MAVLink-based systems 🖥️
• Long-range serial bridging for Arduino and Raspberry Pi projects 🧪

📝 Notes & Best Practices

• Regulatory compliance: Use the 915 MHz band only where permitted and configure output power accordingly.
• Power notation: 20 dBm equals 100 mW; 27 dBm equals 500 mW. This listing includes “500 mW” and “1–20 dBm adjustable.” Verify the exact hardware variant and supported power range on your unit before deployment.
• Antenna setup: Use a matching RP-SMA antenna and mount it clear of obstructions for maximum range and link quality.