Radio systems and receivers: choosing a reliable control link
Channels, receiver protocols, telemetry, range, redundancy and what to check before matching a transmitter to a model.
Holybro SiK Telemetry Radio V3 is a Holybro catalog item in Telemetry & Data Links. Review the model details below and request compatibility and supply information for civilian use.
| Brand | Holybro |
|---|---|
| Model | SiK Telemetry Radio V3 |
| Receive sensitivity | -121 dbm @2kbps RF Data Rate, -105 dbm @64kbps RF Data Rate |
| RF Data Rates | 2, 4, 8, 16, 32, 64(default), 96, 128, 192, 250 kbps |
| Serial Interface Data Rate | 1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 57.6(default), 115.2 kbps |
| Frequency Band | 902MHz - 928MHz or 414MHz - 460MHz |
| Interference Immunity | Frequency Hopping Spread Spectrum (FHSS) Configurable duty cycle |
| Address Options | Network ID: 0 –255 |
| Channels | Up to 50 Frequency Hopping Channels |
| Supported Network Topologies | Point-to-point |
| Configuration Method | MissionPlanner or AT Commands |
| Data Framing | Standard or MAVLink protocol framing |
| Error correction | Corrects up to 25% of bit errors with open-source SIK firmware |
| Serial Data Connector & Interface | 6-pin JST-GH connector, 3.3V-TTL |
| SMA Connector | RP-SMA female |
| Operating Temperature | -40~85°C |
This Holybro SiK Telemetry Radio is a small, light, and inexpensive open-source radio platform that typically allows ranges of better than 300m “out of the box” (the range can be extended to several kilometres with the use of a patch antenna on the ground). This radio is plug-n-play, ready for all Pixhawk Standard and other flight controllers, providing the easiest way to set up a telemetry connection between your Flight Controller and a ground station. It uses open-source firmware that has been specially designed to work well with MAVLink packets and to be integrated with the Mission Planner, Ardupilot, QGroundControl, PX4, and Flight Controller. The radios can be either 915 MHz or 433 MHz, and you should purchase the model that is appropriate for your country/region.
Open-source SIK firmware
Plug-n-play for Pixhawk Standard Flight Controllers
The Easiest way to connect your Flight Controller and Ground Station
Interchangeable air and ground radio
Micro-USB port (Type-C Adapter Cable Included)
6-position JST-GH connector
2-way full-duplex communication through adaptive TDM UART interface
Transparent serial link
MAVLink protocol framing
Built in FT230X/FT23 USB to BASIC UART conversion IC
Supply voltage: 100mW & 500mW version: 5V DC (from USB or JST-GH) 1W version: 7~28V DC via XT30
100mW & 500mW version: 5V DC (from USB or JST-GH)
1W version: 7~28V DC via XT30
Transmit current: 100 mA at 20 dBm
Receive current: 25 mA
Serial interface: 3.3 V UART
100mW & 500mW options Radio modules with antennas *2 Micro-USB to USB-A cable *1 Micro-USB to Micro-USB OTG adapter cable *1 Micro USB to Type-C Adapter JST-GH-6P to JST-GH-6P cable *1 (for Pixhawk Standard FC) JST-GH-6P to Molex DF13 6P (for Pix32, Pixhawk 2.4.6, etc.)
Radio modules with antennas *2
Micro-USB to USB-A cable *1
Micro-USB to Micro-USB OTG adapter cable *1
Micro USB to Type-C Adapter
JST-GH-6P to JST-GH-6P cable *1 (for Pixhawk Standard FC)
JST-GH-6P to Molex DF13 6P (for Pix32, Pixhawk 2.4.6, etc.)
Single 1W 1W Radio modules with antennas *1 High-gain omnidirectional antenna *1 Male Type-C to male Type-C USB cable *1 Male XT30 to female XT30 adapter cable *1 Male XT30 to female XT60 adapter cable *1 JST-GH-6P to JST-GH-6P cable *1 (for Pixhawk Standard FC) Rubber damping grommet *3
1W Radio modules with antennas *1
High-gain omnidirectional antenna *1
Male Type-C to male Type-C USB cable *1
Male XT30 to female XT30 adapter cable *1
Male XT30 to female XT60 adapter cable *1
Rubber damping grommet *3
Dual 1W 1W Radio modules with antennas *2 High-gain omnidirectional antenna *2 Male Type-C to male Type-C USB cable *1 Male XT30 to female XT30 adapter cable *1 Male XT30 to female XT60 adapter cable *1 JST-GH-6P to JST-GH-6P cable *1 (for Pixhawk Standard FC) Rubber damping grommet *3
1W Radio modules with antennas *2
High-gain omnidirectional antenna *2
Telemetry-Radio-V3-Quick-Start-Guide
| SiK Telemetry Radio 100mW | SiK Telemetry Radio 500mW | SiK Telemetry Radio 1W | |
|---|---|---|---|
| Max RF Power | 20 dBm | 27 dBm | 30 dBm |
| Antenna Gain | 2dBi | 5dBi | |
| RF Data Rates | 2, 4, 8, 16, 32, 64(default), 96, 128, 192, 250 kbps | ||
| Serial Interface Data Rate | 1.2, 2.4, 4.8, 9.6, 19.2, 38.4, 57.6(default), 115.2 kbps | ||
| Frequency Band | 902MHz - 928MHz or 414MHz - 460MHz | ||
| Interference Immunity | Frequency Hopping Spread Spectrum (FHSS) Configurable duty cycle | ||
| Address Options | Network ID: 0 –255 | ||
| Channels | Up to 50 Frequency Hopping Channels | ||
| Supported Network Topologies | Point-to-point | ||
| Configuration Method | MissionPlanner or AT Commands | ||
| Data Framing | Standard or MAVLink protocol framing | ||
| Error correction | Corrects up to 25% of bit errors with open-source SIK firmware | ||
| Serial Data Connector & Interface | 6-pin JST-GH connector, 3.3V-TTL | ||
| USB | Micro-USB | Type-C | |
| SMA Connector | RP-SMA female | ||
| Power Connector | NA | XT30 | |
| Operating Temperature | -40~85°C | ||
| Dimension | 28 x 53 x 10.7mm (without antenna) | 66.5 x 32 x 16.5mm (without antenna) | |
| Weight | 23.5g w/ antenna | 67g w/ antenna | |
| Input Voltage (DC) | 5V | 7~28V | |
| Configuration | Manufacturer SKU |
|---|---|
| 100mW 433MHz | 17012 |
| 100mW 915MHz | 17013 |
| 500mW 433MHz (Discontinued) | 17014 |
| 500mW 915MHz (Discontinued) | 17015 |
Availability, price, package contents and hardware revision are confirmed on inquiry. This listing does not assert local stock, a delivery date or official distributor status. Confirm voltage, connectors, firmware and operating requirements before use.
These guides explain the setup, safety checks and accessory choices that usually matter for this product type.
Channels, receiver protocols, telemetry, range, redundancy and what to check before matching a transmitter to a model.
A practical binding guide for matching protocol, bind mode, receiver power, model memory, control checks and common binding mistakes.
Failsafe setup for electric and fuel aircraft: throttle behavior, receiver signal loss, switch positions and safe verification before flight.
Make an aircraft calmer for beginners by setting low rates, high rates and expo without hiding mechanical setup problems.
Ground checks, takeoff planning, trim passes, battery timing and first landing strategy for a new or repaired RC aircraft.
Tags: Holybro,
We use essential cookies to operate the store. Optional cookies are used only with your consent. You can read the full policy here.