Holybro SiK Telemetry Radio V3 100mW 433MHz

The Holybro SiK Telemetry Radio V3 (433 MHz / 100 mW) is a compact, open-source data link designed for ArduPilot and PX4 based flight controllers. It establishes a reliable MAVLink connection between your drone and a ground control station (GCS) like Mission Planner or QGroundControl, enabling real-time mission planning, flight monitoring, and parameter tuning in the field.

Key features

• Interchangeable modules: The V3 design eliminates separate "air" and "ground" variants; both included modules feature identical hardware with integrated USB-C and 6-pin JST-GH ports.

• Plug-and-play compatibility: Connects directly to Pixhawk Standard flight controllers via the included JST-GH cables with no soldering required.

• Open-source SiK firmware: Pre-loaded with standard SiK firmware, supporting MAVLink framing, duty cycle configuration, and AT command configuration.

• Built-in CP2102: High-quality USB-to-UART bridge ensures seamless driver compatibility when connecting to Windows, Mac, or Android ground stations.

Specifications

• Frequency: 433 MHz

• Output power: 100 mW (20 dBm) maximum

• Receiver sensitivity: -117 dBm

• Hardware interface: UART (6-pin JST-GH), USB-C

• Supported firmware: ArduPilot, PX4 (MAVLink compatible)

• Supply voltage: 5V DC (via USB or JST-GH)

Note: The 433 MHz band is heavily regulated in some jurisdictions. Always verify that local radio transmission laws permit 433 MHz operation at 100 mW before deployment.