Using the BetaFPV A02 VTX is easy. First, connect it to your flight controller using the 6 - pin FC cable as shown in the connection diagram. Make sure to match the wire colors. To enter the OSD menu and change frequency, power, or channel, use your radio transmitter sticks (Pitch Stick UP and Yaw Stick Left), then go to FEATURES -> VTX SA. For PitMode, press the button on the VTX twice to activate it and double - press again to exit. When flying, keep in mind the operating temperature range of - 10℃ to + 60℃. Avoid exposing it to extreme conditions. For maintenance, gently clean the device with a soft, dry cloth. Check the antenna regularly for any signs of damage. If you encounter any issues, refer to the detailed specifications and troubleshooting guide provided.