** Note: TX antenna must be installed properly before it is switched on, power on without antenna installed, or an improper antenna was used may easily burn the VTX, and such damage is not covered by warranty. The antenna helps the VTX to reduce heat so using an improper antenna will burn/damage the VTX easily.
** Warning: Any customized work (eg. you remove the default RP-SMA/SMA connector and solder a thin antenna on the VTX. This might cause overheat and burn the IC) on the VTX by yourself will void the factory warranty (no warranty, replacement and refund will be offered).