Radio Telemetry Kit (A) for PixHawk - 433Mhz

Radio Telemetry Kit (A) for PixHawk - 433Mhz

Price: 49,95€

Price without tax: 41,28€
Available in our stock

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  • Model: ARD_433MHZ_TELEMETRY_KIT (42334)

This 433 MHz PixHawk / Ardupilot telemetry kit allows you to establish a telemetry connection between your drone and your computer.

The 3DR Radio telemetry system for ArduPilot, is designed as an open source Xbee replacement radio set, offering a lower price, longer range and superior performance to Xbee radios.

The kit includes one serial board module to mount on your drone and one USB to connect to your computer on the ground.

The system provides a full-duplex link using HopeRF's HM-TRP modules running custom, open source firmware.  The interface to the module is done via a standard 5V TTL serial / FTDI USB serial connection.

The SiK firmware includes a bootloader that allows radio firmware upgrades over the serial interface, and radio firmware with configurable parameters.

Firmware upgrades and configuration are fully supported in the ArduPilot APM Mission Planner. Configuration is also possible through the 3DR Radio configurator and AT commands.

Technical specifications

  • Very small size
  • Air module weight (with antenna): 18gr
  • Frequency: 433MHz
  • Receiver sensitivity to -121 dBm
  • Transmit power up to 20dBm (100mW)
  • Transparent serial link
  • Air data rates up to 250kbps
  • MAVLink protocol framing and status reporting
  • Frequency hopping spread spectrum (FHSS)
  • Adaptive time division multiplexing (TDM)
  • Support for LBT and AFA
  • Configurable duty cycle
  • Built in error correcting code (can correct up to 25% data bit errors)
  • Open source firmware
  • AT commands for radio configuration
  • RT commands for remote radio configuration
  • Adaptive flow control when used with APM
  • Based on the HopeRF HM-TRP radio module, featuring an SiLabs Si1000 RF microcontroller.


  • AIR module
    • Weight (with antenna): 19 gr
    • Size (box): 45 x 30 x 10 mm

Module AIR

  • Poids (avec antenne):
  • Dimensions (boitier): 

Scope of delivery

  • 1x Air module
  • 1x Ground module
  • 2x Antennas
  • 1x Female USB to micro-USB male cable
  • Cables



  • Purchasing and using this material is not allowed in several countries. In some cases, it requires a license, in some other cases it is simply forbidden. In case of doubt, we recommend you not to purchase this module.
  • This module is adapted to Pixhawk 2 but requires then a bit of soldering.


AIR module
Pin 1 2 3 4
Color Yellow Green Red Black
Modem side TX RX +5V GND
Pixhawk side RX TX Vcc GND


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