The Holybro SiK Telemetry Radio V3 100mW 433MHz is a lightweight and reliable telemetry radio systemdesigned to create a wireless communication link between a flight controller and a ground control station.
Built for Pixhawk Standard flight controllers, ArduPilot, PX4, Mission Planner, and QGroundControl, this radio provides an easy way to monitor flight data, adjust missions, and maintain a real-time telemetry connection during UAV operations.
Reliable UAV Telemetry Link
The SiK Telemetry Radio V3 100mW 433MHz enables a stable two-way telemetry connection between the drone and the ground station.
It allows users to view real-time flight data, monitor aircraft status, modify mission parameters, and communicate with compatible autopilot systems through MAVLink protocol framing.
This makes it suitable for multirotor drones, fixed-wing UAVs, VTOL aircraft, research platforms, and professional drone development systems.
Open-Source SiK Firmware
The Holybro SiK Telemetry Radio V3 uses open-source SiK firmware, specifically designed for reliable communication with MAVLink packets.
This firmware supports transparent serial communication, adaptive TDM UART communication, and robust data transmission for professional UAV telemetry applications.
The radio can be configured through Mission Planner or AT commands, making it flexible for advanced users and UAV integrators.
433MHz 100mW Version
This version operates in the 433MHz frequency range with a 100mW output power, making it suitable for regions where 433MHz telemetry operation is allowed.
The 100mW version typically provides a range of more than 300 m out of the box, with the possibility of extending range using suitable antennas and optimized ground station placement.
Plug & Play Pixhawk Compatibility
The SiK Telemetry Radio V3 is designed to be plug-and-play with Pixhawk Standard flight controllers and other compatible autopilot systems.
It includes a 6-position JST-GH connector and supports a 3.3V TTL serial interface, allowing clean integration with modern UAV flight controllers.
The interchangeable air and ground radio design makes installation simple and flexible.
Easy Ground Station Integration
The radio is compatible with popular ground control software including Mission Planner, ArduPilot, PX4, and QGroundControl.
This makes it easy to establish a telemetry link for mission upload, flight monitoring, parameter tuning, data analysis, and real-time drone control support.
Compact & Lightweight Design
The Holybro SiK Telemetry Radio V3 100mW 433MHz is small, lightweight, and easy to install on compact UAV platforms.
With its Micro-USB port, JST-GH connector, and lightweight enclosure, it is well suited for both onboard installationand ground station use.
Technical Specifications
Product: Holybro SiK Telemetry Radio V3 100mW 433MHz
Radio Type: Open-source telemetry radio
Frequency Version: 433MHz
Frequency Band: 414–460 MHz
Maximum RF Power: 20 dBm / 100mW
Firmware: Open-source SiK firmware
Communication: Two-way full-duplex communication through adaptive TDM UART interface
Protocol Support: Transparent serial link / MAVLink protocol framing
RF Data Rates: 2 / 4 / 8 / 16 / 32 / 64 / 96 / 128 / 192 / 250 kbps
Serial Data Rates: 1.2 / 2.4 / 4.8 / 9.6 / 19.2 / 38.4 / 57.6 / 115.2 kbps
Connector: 6-pin JST-GH connector
Serial Interface: 3.3V TTL
USB Port: Micro-USB
Antenna Connector: RP-SMA female
Input Voltage: 5V DC via USB or JST-GH
Transmit Current: 100 mA at 20 dBm
Receive Current: 25 mA
Dimensions: 28 × 53 × 10.7 mm without antenna
Weight: 23.5 g with antenna
Recommended Use: Pixhawk telemetry, MAVLink data link, ArduPilot, PX4, Mission Planner, QGroundControl, UAV testing and professional drone development