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HAPPYMODEL OVX300 OVX303 5-8G 40CH 300mw VTX OpenVTX (OVX300) - F44546-E1 F44546-E2 Happymodel F44546-E1 F44546-E2 OpenVTx aims to provide firmware with both the SmartAudio and Tramp protocols. Either protocol can be used on the flight controller and on VTx power up the protocol used is automatically detected by OpenVTx. Currently SA is fully implemented and test against Rev. 09. To date IMRC has not released a protocol standard and implementation is based on information found within Betaflight. OpenVTX firmware preload, Smartaudio ready, Nano size and stable power output. Transmitting Power: 0/RCE/25/100/300. Power supply: DC 5V . Current (5v):

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