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Plug the servo whip from the SBUS to PWM decoder into the port labeled “Servo” on the channel changer. Plug a 5 - 16V power source into the “BAT” port. Polarity is indicated on the channel changer, make sure connections are made with correct polarity.
The top number on the channel changer display will show you the setting of the current channel selected on the decoder. The LED on the decoder indicates which channel is currently selected. Toggle between the 4 channels by hitting the button on the decoder.
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