Stable and efficient signal transmission: The external antenna of T40 remote control is responsible for transmitting control and image transmission wireless signals between the remote control and the aircraft, ensuring stable and efficient signal connection, ensuring that the drone can accurately receive remote control instructions during operation, achieving smooth flight and high-definition image transmission. High integration and compact size: Thanks to advanced technology, the antenna of T40 remote control not only brings outstanding performance, but also has a smaller size. Some antennas can be hidden inside the remote control body, making the overall structure of the remote control more compact, easy to carry and operate. Disassembly steps External antenna disassembly: Loosen the fixing nut of the external antenna counterclockwise, and then pull out the external antenna to the outside. Installation steps External antenna installation: Align the notch shape of the external antenna and the antenna connector with the fixed end of the external antenna on the top of the remote control, insert the connector of the external antenna to the bottom, and then tighten the fixing nut of the external antenna clockwise.