Description
Holybro SiK Radio Telemetry Kit for Pixhawk, PX4 & ArduPilot Flight Controllers
The Holybro SiK Radio Telemetry Kit is a reliable, lightweight, and open-source wireless telemetry solution designed for Pixhawk, PX4, ArduPilot, and compatible flight controllers. It provides a seamless communication link between your UAV autopilot and a ground control station, enabling real-time flight monitoring, mission planning, parameter configuration, and telemetry data transmission.
Powered by open-source SiK firmware, this telemetry kit is fully compatible with Mission Planner, ArduPilot, PX4 Autopilot, and QGroundControl. It supports 433MHz and 915MHz frequency variants (region dependent) and offers an out-of-the-box communication range of over 300 meters, extendable to several kilometers with suitable ground antennas.
Featuring Frequency Hopping Spread Spectrum (FHSS), adaptive TDM UART communication, MAVLink protocol support, and configurable transmission power up to 500mW, the Holybro telemetry kit ensures reliable, low-latency communication for drones, UAVs, and autonomous vehicles.
The kit includes interchangeable air and ground radios, a USB interface, and a JST-GH connector for quick plug-and-play installation with Pixhawk flight controllers.
Note: Available in 433MHz and 915MHz variants. Please select the appropriate frequency based on your country's radio regulations.
Key Features
- Open-source SiK firmware.
- Plug-and-play for Pixhawk flight controllers.
- Compatible with PX4 & ArduPilot.
- Supports Mission Planner & QGroundControl.
- Available in 433MHz and 915MHz variants.
- 100mW RF output power.
- Long-range wireless telemetry communication.
- Frequency Hopping Spread Spectrum (FHSS).
- Full-duplex serial communication.
- MAVLink protocol support.
- Transparent serial link.
- Error correction for improved reliability.
- Micro-USB interface.
- Type-C adapter cable included.
- 6-pin JST-GH connector.
- Interchangeable air and ground radios.
- Lightweight and compact design.
Technical Specifications
| Specification | Details | ||
|---|---|---|---|
| Product Name | Holybro SiK Radio Telemetry Kit | ||
| Frequency Options | 433MHz / 915MHz (Variant Dependent) | ||
| Firmware | Open-Source SiK Firmware | ||
| Compatibility | Pixhawk, PX4, ArduPilot | ||
| Communication Type | Full-Duplex Wireless Telemetry | ||
| Maximum RF Output Power | 100mW | ||
| Receiver Sensitivity | -121 dbm @2kbps RF Data Rate, -105 dbm @64kbps RF Data Rate | ||
| Communication Protocol | MAVLink | ||
| Wireless Technology | FHSS (Frequency Hopping Spread Spectrum) | ||
| Serial Interface | 3.3V UART | ||
| USB Interface | Micro-USB | ||
| USB IC | FT230X / FT231 | ||
| Connector | 6-Pin JST-GH | ||
| Supply Voltage | 5V DC | ||
| Transmit Current | 100mA @ 20dBm | ||
| Receive Current | 25mA | ||
Applications
- Pixhawk Flight Controllers.
- PX4 Autopilot Systems
- ArduPilot UAVs.
- Mission Planner Telemetry.
- QGroundControl Communication.
- RC Aeroplanes.
- Quadcopters.
- Hexacopters.
- Fixed Wing UAVs
- VTOL Aircraft.
- Autonomous Vehicles.
- Drone Telemetry.
- Robotics Projects.
- UAV Research.
- Remote Data Monitoring.
Precautions
- Select the correct 433MHz or 915MHz variant according to your country's regulations.
- Install antennas before powering the radio.
- Avoid operating without an antenna attached.
- Keep radios away from strong electromagnetic interference.
- Ensure correct JST-GH connection to the flight controller.
- Do not exceed the recommended supply voltage.
- Update firmware only using supported software.
- Mount the antenna away from carbon fiber frames for better signal quality.
- Avoid bending or damaging the antenna cable.







