If you are using a 3DR Radio telemetry kit to connect your autopilot and ground station, you may want to download and use the 3DR Radio Config software to configure and update your radio modules. This software is a standalone tool that allows you to change various settings of the radios, such as frequency, airspeed, duty cycle, and encryption. It also lets you upload the latest firmware to the radios for optimal performance.
In this article, we will show you how to download and use the 3DR Radio Config software for Windows. You will need a 3DR Radio v1 or v2 kit, a Windows computer with a USB port, and a micro-USB cable.
You can download the 3DR Radio Config software from this link: https://github.com/ArduPilot/SiK/releases. Choose the latest version of the file named \"3DRRadioConfig.zip\" and save it to your computer. Then extract the zip file to a folder of your choice.
Step 2: Connect the ground module to your computer
The ground module is the one with a USB connector. Plug it into your computer using the micro-USB cable. The first time you do this, Windows should automatically install the required drivers for the module. If it does not, you can download and install the D2XX FTDI driver from here: https://www.ftdichip.com/Drivers/D2XX.htm.
Step 3: Run the 3DR Radio Config software
Open the folder where you extracted the zip file and double-click on the file named \"3DRRadioConfig.exe\". The software should launch and display a window like this:
The software will automatically detect the COM port of the ground module and show it in the Port box. If it does not, you can manually select it from the drop-down list. The default baud rate for the radios is 57600, so make sure it matches in the Baud box.
Step 4: Connect to the radio modules
Click on the Connect button at the bottom of the window. The software will try to communicate with both the ground module and the air module (the one with a FTDI six pin header). The air module should be connected to your autopilot's telemetry port for power and data. If both modules are detected, you will see their settings displayed in two columns: Local (ground) and Remote (air).
Step 5: Change configuration of the radio modules
You can change various settings of the radio modules by editing the values in either column. For example, you can change the frequency band, air data rate, transmit power, duty cycle, ECC (error correction), MAVLink mode, and encryption key. You can also enable or disable RTS/CTS flow control for increased reliability at longer ranges.
Some settings are only available for advanced users, such as LBT_RSSI (listen before talk), MAX_WINDOW (maximum number of packets in flight), NUM_CHANNELS (number of frequency hopping channels), MIN_FREQ (minimum frequency), MAX_FREQ (maximum frequency), NETID (network ID), SERIAL_SPEED (serial port speed), and FORMAT (packet format).
For more information on what each setting does, see this page: https://ardupilot.org/copter/docs/common-3dr-radio-advanced-configuration-and-technical-information.html.
Step 6: Update firmware of the radio modules
If you want to update the firmware of your radio modules to the latest version, click on the Upload Firmware (Local) button 29c81ba772