# Holybro 텔레메트리 라디오

This Holybro SiK Telemetry Radio is a small, light and inexpensive open source "plug-and-play" radio platform to connect your Autopilot Flight Controller and Ground Station.

This radio is "plug-and-play" with all flight controllers running PX4 that have a JST-GH 6 Pin Connector TELEM port (Pixhawk Connector Standard (opens new window)). It provides the easiest way to setup a telemetry connection between your Autopilot 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 QGroundControl & PX4 Autopilot.

The radios can be either 915Mhz or 433Mhz and you should purchase the model which is appropriate for your country/region. They typically allow ranges of better than 300m "out of the box" (the range can be extended to several kilometers with the use of a patch antenna on the ground).

# Purchase:

# Features

  • Open-source SiK firmware
  • Plug-n-play for Pixhawk Standard Flight Controller
  • 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

# Specification

  • 100 mW maximum output power (adjustable) -117 dBm receive sensitivity
  • RP-SMA connector
  • 2-way full-duplex communication through adaptive TDM UART interface
  • Transparent serial link
  • MAVLink protocol framing
  • Frequency Hopping Spread Spectrum (FHSS) Configurable duty cycle
  • Error correction corrects up to 25% of bit errors Open-source SIK firmware
  • Configurable through Mission Planner & APM Planner

# LEDs Indicators Status

The radios have 2 status LEDs, one red and one green. The interpretation of the different LED states are:

  • Green LED blinking - searching for another radio
  • Green LED solid - link is established with another radio
  • Red LED flashing - transmitting data
  • Red LED solid - in firmware update mode

# Connecting to Flight Controller

Use the 6 pin JST-GH connector that come with the radio to connect the radio to your flight controller's “Telem 1” (“Telem 2” can also be used but the default recommendation is “Telem1”).

# Connecting to a PC or Ground Station

Connecting the radio to your Windows PC or Ground Station is as simple as connecting the micro/type-C USB cable (Type-C adapter included with the radio) to your PC/Ground Station.

The necessary drivers should be installed automatically and the radio will appear as a new “USB Serial Port” in the Windows Device Manager under Ports (COM & LPT). The Mission Planner’s COM Port selection drop-down should also contain the same new COM port.

# Package Includes:

  • 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 DF12 6P (for Pix32, Pixhawk 2.4.6, etc.)