TX20_V2-manual

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When a parameter can be modified, the parameter’s current
value will be shown on the right-hand side of the screen. In
this case, roll left/right will adjust the parameter up and
down.
The screen to the right shows the current vTX settings. From
here, you can change the frequency band, channel, and
power level of the video transmitter. After making the
changes, move the cursor to “Set” and press roll-right to
confirm the settings.
F4 FC test
 can connect the computer to download firmware & adjustable parameters
 good connection test, after testing all functions
 buzzer sound
 OSD display is normal
 Have a camera
 The remote control can be unlocked
 if motor rotation
 LED light