TBS High-Frequency Head Configuration

I. Principle

TBS high-frequency antenna (Crossfire) supports MAVLink telemetry functionality, enabling wireless communication between the flight controller and ground control station (Mission Planner / QGroundControl) through RC transmitter, receiver and WiFi methods. After properly configuring the TBS high-frequency antenna telemetry function, remote operations such as flight data monitoring, parameter adjustment, waypoint setting, etc. can be performed.

II. Equipment Preparation

1) Flight Controller: Any of the following flight controllers are suitable for this tutorial: SpeedyBee F405 WING APP / SpeedyBee F405 WING MINI / CoreWing F405 WING V2
2) RC Transmitter: Using RadioMaster Boxer as an example.
3) TBS High-frequency Antenna (Crossfire TX): Micro TX / Nano TX / Fusion
4) TBS Receiver (Crossfire RX): Nano RX PRO (recommended)
5) Ground Control Station: Mission Planner GCS

3. Specific Operations

3.1 TBS RX (Receiver) Connection to Flight Controller Telemetry Interface

Connect CH.OUT3 and CH.OUT4 of the TBS Nano RX (or PRO version) to the UART4 (Serial4) port of the flight controller respectively:

TBS RX Interface	Flight Controller Port	Description
OUT3	TX4	MAVLink data transmission
OUT4	RX4	MAVLink data reception

3.2 TBS Transmitter Setup

3.2.1 Enter TBS Agent Lite Script

• Power on the aircraft and turn on the transmitter.
• Enter the SYS (System) interface, open the TBS Agent Lite script.
  Color screen:
  
  Black and white screen:
  

3.2.2 Set Receiver MAVLink Output

• Select XF Nano RX. If not displayed, update the antenna or receiver firmware.
  Color screen:
  
  Black and white screen:
  
• Enter General, set RC by MAVLink to On.
  Color screen:
  
  Black and white screen:
  
• Enter Output MAP, change:
  • Output 3 to MAVL.RX
  • Output 4 to MAVL.TX
    Color screen:
    
    Black and white screen:
    

3.2.3 Enable TX MAVLink Support

• Return to main interface, enter XF Micro TX.
  Color screen:
  
  Black and white screen:
  
• Select MAVLink, and set the switch to On.
  Color screen:
  
  Black and white screen:
  

3.2.4 Configure WiFi Connection

• Return to main interface, enter XF WiFi, then General page.
  Color screen:
  
  Black and white screen:
  
• Set WiFi AP to Enable.
  Color screen:
  
  Black and white screen:
  
• Enter MAVLink page.
  Color screen:
  
  Black and white screen:
  
• Set MAVLink mode to UDP.
• Record the port number ( == The port number 5760 below is for demonstration only, please use the actual value==****）
  Color screen:
  
  Black and white screen:
  

3.3 Flight Controller Parameter Settings

• Enter Configuration/Tuning;
• Enter All Parameters;
• Search for SERIAL4;
• Set the value of SERIAL4_BAUD to 115, and set the value of SERIAL4_PROTOCOL to 2;
• Click Write Parameters.
  

3.4 Ground Control Station Connection

Mission Planner Connection Method:

1. Disconnect USB connection, power the flight controller using the battery.
2. Ensure the transmitter is connected to the receiver, connect the computer to the tbs_crossfire WiFi.
   
3. Open Mission Planner:

• Select "UDP" connection type, baud rate 115200, click Connect.
  
• Enter port number 5760 (consistent with transmitter WiFi settings).
  
• Click "OK", wait for data to load.
• After successful connection, you can click Link Statistics to view the data.
  
  QGroundControl (QGC) Connection Method:

1. Click the QGC icon.
2. Click Application Settings.
   
3. Click Communication Connection.
4. Click Add.
5. Configure as shown in the diagram.
6. Click Confirm.
   
7. Select TBS.
8. Click Connect.
   

• "Not Ready" displayed in the upper left corner indicates successful connection.
  

IV. Q&A

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