FlySky FRM303 2.4GHz 18CH AFHDS 3 Long Range Transmitter RF Module PPM/S.BUS Output for Flysky PL18 EL18 NB4/NB4 Pro Rad

FlySky FRM303 2 4GHz 18CH AFHDS 3 Long Range Transmitter RF Module PPM S BUS Output for Flysky PL18 EL18 NB4 NB4 Pro Radio ControllerFRM303 is a multi function high performance RF module in compliance with the AFHDS 3 third generation automatic frequency hopping digital system protocol It features an external replaceable single antenna support of bi directional transmission three power supply methods support of voltage alarm function in case of external power supply and support ofinputting PPM S BUS and UART signal Description Brand FlySkyProductName FRM303Adaptive Devices PPM Devices that can output standard PPM signals such as FS TH9X FS ST8 FTR8B receiver S BUS Devices that can output standard S BUS signals such as FS ST8 FTr8B receiver Closed Source Protocol 1 5M UART PL18 Open Source Protocol 1 5M UART EL18 Open source protocol 115200 UART Devices that can output open source protocol 115200 UART signal AdaptiveModels Fixed wing aircraft racing drones relays etc Number of Channels 18Resolution 4096RF 2 4GHz ISM2 4G Protocol AFHDS 3Maximum Power 20dBm e i r p EU Distance 3500m Air distance without interference Antenna External sigle SMA antenna Outer screw inner pin Input Power XT30 Interfac 5 28V DCSignal Interface 5 10V DCUSB Port 4 5 5 5V DCWorkingCurrent 98mA 8 4V External power supply 138mA 5 8V Internal power supply 135mA 5V U