The (DISCONTINUE) Holybro SiK Telemetry Radio is a compact, lightweight, and cost-effective open-source radio platform that typically offers ranges exceeding 300m “out of the box” (with a patch antenna on the ground, the range can be significantly increased to several kilometers). This radio is compatible with all Pixhawk Standard and other Flight Controllers, offering a straightforward method to establish a telemetry link between your Autopilot and a ground station. It employs open-source firmware that is optimized for MAVLink packets and integration with Mission Planner, Ardupilot, QGroundControl, and PX4 Autopilot systems. Available in either 915MHz or 433MHz models, it is essential to select the version that complies with the regulations of your specific country/region.
Features
- Open-source SIK firmware
- Plug-n-play for Pixhawk Standard Flight Controllers
- Easiest way to connect your Autopilot and Ground Station
- Interchangeable air and ground radio
- Micro-USB port (Type-C Adapter Cable Included)
- 6-position JST-GH connector
- RP-SMA connector
- Transparent serial link
- MAVLink protocol framing
- Frequency Hopping Spread Spectrum (FHSS) Configurable duty cycle
- Configurable through Mission Planner & APM Planner
Specification:
| Model | Holybro SiK Telemetry Radio V3 500mW 915 MHz |
|---|---|
| 2-way full-duplex communication | TDM UART interface |
| maximum output power | 100 mW, -117 dBm receive sensitivity |
| USB to BASIC UART IC | FT230X/FT231 |
| Dimensions (LxWxH) mm | 28 x 53 x 10.7 |
| Shipping Weight | 0.135 kg |
| Shipping Dimensions | 13 × 11 × 4.5 cm |
Package Includes:
2 x Radio modules with antennas
1 x Micro-USB to USB-A cable
1 x Micro-USB to Micro-USB OTG adapter cable
Micro USB to Type C Adapter
1 x JST-GH-6P to JST-GH-6P cable (for Pixhawk Standard FC)
JST-GH-6P to Molex DF13 6P (for Pix32, Pixhawk 2.4.6, etc.)
Technical Specifications
| Brand | Holybro |
|---|---|
| Frequency | 915 MHz |
| SKU | AI5729 |
| Weight | 0.18 kg |
| Availability | Out of Stock |
Applications & Use Cases
The (DISCONTINUE) Holybro SiK Telemetry Radio V3 500mW 915 MHz is a versatile fpv antennas and trans-receivers used across a wide range of applications including electronics projects, DIY builds, prototyping, and educational experiments.
Common use cases:
- Integrating into a custom electronics project
- Learning and experimenting with circuits
- Replacing or upgrading components in existing setups
This product is ideal for electronics enthusiasts, engineers, and students.
Technical Tip: Always verify voltage and current requirements before connecting to your circuit. Check datasheets for detailed specifications and pin configurations.
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
- Genuine Holybro product sourced from authorized channels



Anjali Pillai –
Superb Holybro SiK Telemetry Radio V3 500mW! Built my first drone with this and it performed beyond expectations.
Tushar Choudhury (verified owner) –
Good quality Holybro SiK Telemetry Radio V3 500mW. Minor scratches on arrival but functionally perfect.
Saurabh Modi (verified owner) –
Very impressed with this Holybro SiK Telemetry Radio V3 500mW. My drone’s performance improved noticeably.
Rakesh Dubey –
Superb Holybro SiK Telemetry Radio V3 500mW! Built my first drone with this and it performed beyond expectations.
Pranav Bose (verified owner) –
Nice Holybro SiK Telemetry Radio V3 500mW, does the job. Delivery took a couple of extra days but product is solid.
Utkarsh Dubey (verified owner) –
Good quality Holybro SiK Telemetry Radio V3 500mW. Minor scratches on arrival but functionally perfect.
Farhan Pillai –
Outstanding Holybro SiK Telemetry Radio V3 500mW! Installed it on my racing quad and the performance is amazing.
Hitesh Nair –
Very good quality Holybro SiK Telemetry Radio V3 500mW. I’ve been building drones for 2 years now and this is one of the best I’ve used.
Siddharth Bhat –
Received the Holybro SiK Telemetry Radio V3 500mW in great condition. Testing done, everything works perfectly.
Mohit Parekh (verified owner) –
Great Holybro SiK Telemetry Radio V3 500mW for beginners and professionals alike. Highly recommended for drone enthusiasts.